@article{ 
author = {A.Allahverdi,,  and K.Kianpur,  and M.R.Moghbeli,},  
title = {EFFECT OF POLYVINYL ALCOHOL ON FLEXURAL STRENGTH AND SOME IMPORTANT PHYSICALPROPERTIES OFPORTLAND CEMENT PASTE}, 
abstract ={Abstract: This work was designed to investigate the simultaneous effect of both water-to-cement (W/C) and polymer-to-cement(P/C) ratios on flexural strength of type V Portland cement pastes containing polyvinyl alcohol. The obtained resultsconfirmed the strong effect of W/C-ratio on the effectiveness of the added polymer so that there exist optimum valuesfor both W/C and P/C-ratios. Pastes prepared at optimum W/C and P/C-ratios of respectively 0.30 and 0.016 exhibitedthe highest flexural strength which was more than two times the strength of unmodified pastes. Further measurementson hardened paste specimens prepared at W/C=0.30 show that increasing the P/C-ratio increases dry bulk specificgravity of the specimens and result in significant reductions in both total permeable pore volume and water absorptionof the specimens confirming the effective packing caused by polyvinyl alcohol acetate.Some water-soluble polymers have proved potentials for improvement in properties of Portland cements.},  
Keywords = {},
volume = {7},
Number = {1}, 
pages = {1-6}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-223-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-223-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {M.Esmailian,},  
title = {THE EFFECT OF COOLING RATE AND AUSTENITE GRAIN SIZE ON THE AUSTENITE TO FERRITE TRANSFORMATION TEMPERATURE AND DIFFERENT FERRITE MORPHOLOGIES IN MICROALLOYED STEELS}, 
abstract ={Abstract: transformation temperature and different ferrite morphologies in one Nb-microalloyed (HSLA) steel has beeninvestigated. Three different austenite grain sizes were selected and cooled at two different cooling rates for obtainingaustenite to ferrite transformation temperature. Moreover, samples with specific austenite grain size have beenquenched, partially, for investigation on the microstructural evolution.In order to assess the influence of austenite grain size on the ferrite transformation temperature, a temperaturedifferences method (TDM) is established and found to be a good way for detection of austenite to ferrite, pearlite andsometimes other ferrite morphologies transformation temperatures.The results obtained in this way show that increasing of austenite grain size and cooling rate has a significant influenceon decreasing of the ferrite transformation temperature.Micrographs of different ferrite morphologies show that at high temperatures, where diffusion rates are higher, grainboundary ferrite nucleates. As the temperature is lowered and the driving force for ferrite formation increases,intragranular sites inside the austenite grains become operative as nucleation sites and suppress the grain boundaryferrite growth. The results indicate that increasing the austenite grain size increases the rate and volume fraction ofintragranular ferrite in two different cooling rates. Moreover, by increasing of cooling rate, the austenite to ferritetransformation temperature decreases and volume fraction of intragranular ferrite increases.The effect of different austenite grain size and different cooling rates on the austenite to ferrite},  
Keywords = {Grain size, Intragranular ferrite, Cooling rate},
volume = {7},
Number = {1}, 
pages = {7-14}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-224-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-224-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {A.R.Hanifi,,  and A.Genson,  and M.J.Pomeroy,  and S.Hampshire,},  
title = {A NEW GENERATION OF OXYNITRIDE GLASSES CONTAINING FLUORINE}, 
abstract ={Oxynitride glasses are found as grain boundary phases in silicon nitride ceramics. They are effectively alumino-silicate glasses in which nitrogen substitutes for oxygen in the glass network, and this causes increases in glass transition and softening temperatures, viscosities (by two to three orders of magnitude), elastic moduli and microhardness. Calcium silicate-based glasses containing fluorine are known to have useful characteristics as potential bioactive materials. Therefore, the combination of both nitrogen and fluorine additions to these glasses may give useful glasses or glass-ceramics with enhanced mechanical stability for use in biomedical applications. This paper reports glass formation and evaluation of glass thermal properties in the Ca-Si-Al-O-N-F system. Within the previously defined Ca-Si-Al-O-N glass forming region at 20 eq.% N, homogeneous, dense glasses are formed. However, addition of fluorine affects glass formation and the reactivity of glass melts. This can lead to fluorine loss as SiF4, and also nitrogen loss, leading to bubble formation and porous glasses. The compositional limits for both denseand porous glass formation at 20 eq.% N and 5 eq.% F have been mapped. At high fluorine contents under conditions when Ca-F bonding is favoured, CaF2 crystals precipitate in the glass. The role of the different cations on glass formation in these oxyfluoro-nitride glasses is discussed.},  
Keywords = {Ca-SiAlON, Oxynitride, Fluorine, Glass Formation, Thermal Properties},
volume = {7},
Number = {1}, 
pages = {15-23}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-249-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-249-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {R.Khoshhal,  and M.Soltanieh,  and M.Mirjalili,},  
title = {FORMATION AND GROWTH OF TITANIUM ALUMINIDE LAYER AT THE SURFACE OF TITANIUM SHEETS IMMERSED IN MOLTEN ALUMINUM}, 
abstract ={Abstract: titanium sheets in pure molten aluminum at 750 and X-Ray Diffraction Analysis results, TiAlintermetallic layer thickness increases slowly at primary stages. After that an enhanced growth rate occurs due to layercracking and disruption. Presumably, reaction starts with solving titanium into the molten aluminum causing intitanium super saturation and TiAlintermetallic layer which consequently leads to TiAlenergy of intermetallic layer formation and growth was developed by measuring titanium thickness decreases.In this work, kinetics of intermetallic compounds formation in Al-Ti system was studied by immersingoC, 850 oC and 950 oC. According to Scanning Electron Microscopy3 is the only phase can form at the interface. Observations revealed that3 formation. At this stage, growth may be controlled by aluminum diffusion through3 formation at the interface of Ti-TiAl3. Furthermore, activation},  
Keywords = {Intermetallics, Kinetics, TiAl3, Titanium Aluminide, Activation Energy.},
volume = {7},
Number = {1}, 
pages = {24-31}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-250-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-250-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {A.Rezvanifar,  and M.Zandrahimi,},  
title = {EVALUATION OFDISLOCATION STRUCTURE AND CRYSTALLITE SIZE IN WORN AL-SI ALLOY BY X-RAY DIFFRACTION}, 
abstract ={Abstract: powerful method for the characterization of microstructures of crystalline materials in terms of crystallite size anddislocation structures. In this paper the effect of the sliding on the microstructure of A356 in the as-cast and heattreated conditions are studied, The X-ray phase analysis shows that with increasing applied load, the dislocationdensity is increased, whereas the crystallite size is decreased. It was found that heat treatment raised dislocationdensity during wear. The screw or edge character of dislocations in worn specimens were determined by analyzing thedislocation contrast factors, it was demonstrated that the character of the prevailing dislocations in high loads isnearly pure screw.Diffraction peak profile analysis has recently been developed to such an extent that it can be applied as a},  
Keywords = {Severe Wear, Peak Profile Analysis, Crystallite Size, Dislocation Structure},
volume = {7},
Number = {1}, 
pages = {32-38}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-251-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-251-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {A.H.ShafieFarhood,  and F.Akhlaghi,},  
title = {FORMATION OF GLOBULAR STRUCTURES IN ALUMINUM A356 ALLOY BY NARROWMELT STREAM (NMS) TECHNIQUE}, 
abstract ={Abstract: structures in alloys. This method is based on pouring the melt through a small sized nozzle into a mould located at acertain height under the crucible. This simple method generates globular structures without using equipments such asimpellers, electromagnetic stirrers, ultrasonic probes and cooling slopes. Therefore it is cost effective. In the presentstudy, the effect of casting size and mould casting modulus on the globular structure evolution in A356 aluminium alloyspecimens prepared by NMS process was investigated. The results showed that regardless of the different castingmodulus and their sizes, all the specimens exhibited globular structures. However, the size and shape factor of theglobules decreased with increased casting modulus and casting size indicating the influential effect of the surface areaof the mould in generating globular structures in this process.Narrow Melt Stream (NMS) is a relatively new semisolid metal processing technique for producing globular},  
Keywords = {Narrow Melt Stream (NMS), Casting Modulus, Casting Size, Globule Size, Globule Shape.},
volume = {7},
Number = {1}, 
pages = {39-47}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-252-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-252-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {M.Banoee,Z.Ehsanfar,  and N.Mokhtari,M.R.Khoshayand,  and A.AkhavanSepahi,  and P.JafariFesharaki,H.R.Monsef-Esfahani,,  and A.R.Shahverdi,},  
title = {THE GREEN SYNTHESIS OF GOLD NANOPARTICLES USING THE ETHANOL EXTRACT OF BLACK TEA AND ITS TANNIN FREE FRACTION}, 
abstract ={Abstracts: nanoparticles. All the extracts were used separately for the synthesis of gold nanoparticles through the reduction ofaqueous AuClgold ions to gold nanoparticles. The ethanol extract of black tea and its tannin free ethanol extract produced goldnanoparticles in the size ranges of 2.5-27.5 nm and 1.25-17.5 nm with an average size of 10 nm and 3 nm, respectively.The prepared colloid gold nanoparticles, using the ethanol extract of black tea, did not show the appropriate stabilityduring storage time (24 hours) at 4 showed no particle aggregation during short and long storage times at the same conditions. To the best of ourknowledge, this is the first report on the rapid synthesis of gold nanoparticles using ethanol extract of black tea andits tannin free fraction.In this research the ethanol extract of black tea and its tannin free fraction used for green synthesis of gold4¯. Transmission electron microscopy and visible absorption spectroscopy confirmed the reduction ofoC. In contrast, gold colloids, which were synthesized by a tannin free fraction},  
Keywords = {Camellia sinensis, Gold nanoparticles, Synthesis, Tannin, Black tea, Chloroauric acid},
volume = {7},
Number = {1}, 
pages = {48-53}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-253-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-253-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {M.Adeli,  and M.Shekari,  and S.H.Seyedein,  and M.R.Aboutalebi,},  
title = {NUMERICAL SIMULATION OF COMBUSTION SYNTHESIS OF ALUMINIDE INTERMETALLIC COMPOUNDS}, 
abstract ={Combustion synthesis is a special thermophysico-chemical process applied for production of intermetallic compounds. In the present work, a reaction–diffusion numerical model was developed to analyze the combustion synthesis of aluminide intermetallics by self-propagating high-temperature synthesis process. In order to verify the reliability of the numerical model, an experimental setup was designed and used to perform the combustion synthesis of nickel and titanium aluminides. The developed model was further used to determine the temperature history of a powder mixture compact during self-propagating high-temperature synthesis. The effect of compact relative density on combustion temperature and wave propagation velocity was also studied.},  
Keywords = {Combustion synthesis (CS), Aluminide intermetallic compounds, Modeling, Porosity},
volume = {7},
Number = {2}, 
pages = {1-5}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-254-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-254-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {A.M.Rashidi,  and A.Amadeh,},  
title = {A STUDY ON THE ALUMINIZING OF ELECTRODEPOSITED NICKELAT 500 oC}, 
abstract ={Abstract: nanocrystalline nickel samples with the grain size of ~25 nm were prepared via direct current electrodeposition andaluminized for different durations by pack cementation method at 500 means of SEM, EDS and XRD techniques. According to results, short time aluminizing resulted in the formation of asingle aluminide layer whereas at long duration two distinct aluminide layers were formed. The growth kinetics of thecoating was non-parabolic at short times while it obeyed the parabolic law at long duration. The parabolic growthrate constant of single phase coating formed on electrodeposited samples was about 30 ìm / h1/2 approximately 3 timesgreater than the data reported for coarse grained nickel (8.4 ìm / h1/2). Meanwhile, the overall growth rate constantwas decreased to 11.7 ìm / h1/2, when double aluminide layers formed on nanocrystalline nickel.In this research, aluminizing behavior of ultra fine-grained nickel was investigated. For this purpose,oC. The aluminide layers were examined by},  
Keywords = { Aluminide; Coatings; Kinetics; Nanocrystalline; Nickel.},
volume = {7},
Number = {2}, 
pages = {6-13}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-255-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-255-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {N.Anjabin,  and KarimiTaheri,},  
title = {THE EFFECT OF AGING TREATMENT ON MECHANICAL PROPERTIES OFAA6082 ALLOY: MODELINGAND EXPERIMENT}, 
abstract ={Abstract: properties of AA6082 aluminum alloy. Considering that aging phenomenon affects the distribution of alloying elementin matrix, and the fact that different distribution of alloying elements has different impediments to dislocationmovement, a material model based on microstructure, has been developed in this research. A relative volume fractionor mean radius of precipitations is introduced into the flow stress by using the appropriate relationships. The GA-basedoptimization technique is used to evaluate the material constants within the equations from the uni-axial tensile testdata of AA6082 alloy. Finally, using the proposed model with optimized constants, the flow behavior of the alloy atdifferent conditions of heat treatment is predicted. The results predicted by the model showed a good agreement withexperimental data, indicating the capability of the model in prediction of the material flow behavior after different heattreatment cycles. Also, the calculated flow stress was used for determination of the material property in AbaqusSoftware to analyze the uniaxial compression test. The force- displacement curves of the analysis were compared tothe experimental data obtained in the same condition, and a good agreement was found between the two sets of results.A novel constitutive equation has been proposed to predict the effect of aging treatment on mechanical},  
Keywords = {Aluminium alloys, Heat treatments, Mechanical properties, FEM analyze.},
volume = {7},
Number = {2}, 
pages = {14-21}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-256-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-256-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {A.Noorian,  and Sh.Kheirandish,  and H.Saghafian,},  
title = {EVALUATION OF THE MECHANICAL PROPERTIES OF NIOBIUM MODIFIED CAST AISI H 13 HOT WORK TOOL STEEL}, 
abstract ={Abstract: mechanical properties of AISIH 13 hot-work tool steel have been studied. Cast samples made of the modified new steel were homogenized and austenitized at different conditions, followed by tempering at the specified temperature ranges. Hardness, red hardness, three point bending test and Charpy impact test were carried out to evaluate the mechanical properties together with characterizing the microstructure of the modified steel using scanning electron microscope. The results show that niobium addition modifies the cast structure of Nb–alloyed steel, and increases its maximum hardness. It was found that bending strength bending strain, impact strength, and red hardness of the modified cast steel are also higher than those of the cast H13 steel, and lower than those of the wrought H13 steel. In this research, the effects of partially replacing of vanadium and molybdenum with niobium on the},  
Keywords = {Hot-work tool steel, H13, Nb, niobium, NbC, mechanical properties.},
volume = {7},
Number = {2}, 
pages = {22-29}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-257-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-257-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {M.Sh.Bafghi,  and A.H.Emami,  and A.Zakeri,  and J.VahdatiKhaki,},  
title = {EFFECT OF MECHANICAL ACTIVATION ON THE KINETICS OF LEACHINGOFCHALCOPYRITE IN THE FERRIC SULFATE MEDIA}, 
abstract ={Abstract: has been investigated. It has been shown that the mechanism of leaching reaction is diffusion through the product layerand does not undergo any change as a result of mechanical activation in a wide range of experimental conditions.Leaching rate is strongly influenced by milling intensity and the effect of ball to powder mass ratio is stronger thanmilling time. Curve fitting of experimental data shows that leaching rate constant is approximately a linear functionof ball to powder mass ratio, while it obeys a power function with regard to the milling time.The kinetics of chalcopyrite leaching in a ferric sulfate media for raw and mechanically activated samples},  
Keywords = {Kinetics, Mechanical activations, Chalcopyrite, Milling, Leaching},
volume = {7},
Number = {2}, 
pages = {30-35}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-258-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-258-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {K.ChristineStella,  and A.SamsonNesaraj,},  
title = {EFFECT OF FUELS ON THE COMBUSTION SYNTHESIS OF NiAL2O4 SPINEL PARTICLES}, 
abstract ={Abstract: as magnetic materials, semiconductors, pigments, catalysts, refractories and electronic ceramics. In this paper, wereported the preparation of NiAlThe resulting powder was chracterized by XRD, particle size analysis and SEM. The XRD patterns show that thecombustion technique was excellent to prepare single – phased cubic NiAlfound to be around 14 nm. From the particle size analysis, it was found that the 50 % of the particles lie below 30µm. The micrographs show the formation of fluffy agglomerates composed of fine particles.Spinels constitute an advanced group of materials with great technologial appeal, being able to be applied2O4 spinels by low temperature combustion technique using glycine and urea as fuels.2O4 particles and the crystallite sizes were},  
Keywords = { Nickel Aluminate Spinel, Combustion technique, Characterization},
volume = {7},
Number = {2}, 
pages = {36-44}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-259-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-259-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {M.Nusheh*,  and H.Yoozbashizadeh,},  
title = {STUDY ON ELECTROWINNING OF COBALT BY CYCLIC VOLTAMMETRYTECHNIQUE}, 
abstract ={Abstract: the competition between the precipitation of cobalt ions and evolution of hydrogen gas on the cathode surface duringthe reduction process in a sulfate bath, investigation on the mechanism of metal precipitation is of great importance.In the present work, study on the kinetics of cobalt electrowinning and the mechanism of the involved reactions havebeen carried out. The obtained results, confirm the mechanism of cobalt precipitation by depletion of hydroxides. Theeffects of temperature and scan rate parameters were studied on electrowinning of cobalt by cyclic voltammetrytechnique. The diffusion coefficient and rate constant of the reactions were measured and calculated by performedexperiments.Nowadays cobalt is mostly produced through the electrowinning process of sulfate solutions. Regarding to},  
Keywords = {Cobalt, Electrowinning, Mechanism, Kinetics and Cyclic voltammetry},
volume = {7},
Number = {2}, 
pages = {45-48}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-260-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-260-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {A.	M.Hadian,  and B.Nazari,},  
title = {INFLUENCE OF MAGNESIA ADDITION ON HYDRATION OF IRANIAN DOLOMITE}, 
abstract ={  ABSTRACT Dolomite refractories have a good production potential in Iran due to the existence of high-quality dolomite ore in many regions of the country, particularly in Isfahan and Hamedan. The basic problem associated with the production and use of this type of refractories is inherent tendency to hydration of calcined dolomite. One of the methods to overcome this problem is to increase the amount of magnesia in doloma. This study focuses on the use of Iranian dolomite to produce magnesia –doloma (mag-dol) refractory with high resistance to hydration and corrosion. It was found that addition of 20wt% magnesite to dolomite would result in capsulating of CaO by MgO that protects doloma from further hydration},  
Keywords = {Dolomite, Magnesite, Mag-dol, Refractory, Hydration, Corrosion},
volume = {7},
Number = {3}, 
pages = {0-0}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-276-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-276-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {A.Jafaria,  and S.H.Seyedeina,  and M.R.Aboutalebia,  and D.G.Eskinb,  and L.Katgermanb,},  
title = {Numerical Modeling of Macrosegregation during the Direct-Chill Casting of an Al alloy Billet}, 
abstract ={ABSTRACT Macrosegregation has been received high attention in the solidification modeling studies. In the present work, a numerical model was developed to predict the macrosegregation during the DC Casting of an Al-4.5wt%Cu billet. The mathematical model developed in this study consists of mass, momentum, energy and species conservation equations for a two-phase mixture of liquid and solid in an axisymmetric coordinates. The solution methodology is based on a standard Finite Volume Method. A new scheme called Semi-Implicit Method for Thermodynamically-Linked Equations (SIMTLE) was employed to link energy and species equations with phase diagram of the alloying system. The model was tested by experimental data extracted from an industrial scale DC caster and a relatively good agreement was obtained. It was concluded that a proper macrosegregation model needs two key features: a precise flow description in the two-phase regions and a capable efficient numerical scheme},  
Keywords = {Macrosegregation, Modeling, Solidification, DC Casting, Aluminum Alloys},
volume = {7},
Number = {3}, 
pages = {0-0}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-275-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-275-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {abbaszadeh, khodamorad and kheirandish, shahram and saghafian, hass},  
title = {Study of the effects of lower bainite volume fraction on tensile and impact properties of D6AC medium carbon low alloy ultrahigh strength steel}, 
abstract ={The effects of lower bainite volume fraction on tensile and impact properties of D6AC ultrahigh strength steel were studied in the current work. To obtain mixed microstructures containing martensite and different volume fractions of the lower bainite, specimens were austenitized at 910° C, then quenched in a salt bath of 330°C for different holding times, finally quenched in oil. In order to obtain fully martensitic and bainitic microstructures, direct oil quenching and isothermal transformation heat treatment for 24 hours were used respectively. All specimens were double tempered at 200°C for 2 hours per tempered. Microstructures were examined by optical and scanning electron microscopes. Fracture morphologies were studied by scanning electron microscopy (SEM). Results showed that both yield and ultimate tensile strength generally decreased with an increase in volume fraction of lower bainite. However, a few exceptions were observed in the mixed microstructures containing 12% lower bainite, showing a higher strength than the fully martensitic microstructure. This can be explained on the basis of two factors. The first is an increase in the strength of martensite due to the partitioning of the prior austenite grains by lower bainite resulting in the refinement of martensite substructures. The second is a plastic constraint effect leading to an enhanced strength of lower bainite by the surrounding relatively rigid martensite. Charpy V-notch impact energy and ductility is improved with increasing the volume fraction of lower bainite.},  
Keywords = {Keyword: D6AC, Microstructure, Mechanical properties, Lower bainite, Ultrahigh strength.},
volume = {7},
Number = {3}, 
pages = {0-0}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-218-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-218-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {Alamolhoda, Somaye and Heshmati-Manesh, Saeed and Ataie, Abolghasem},  
title = {AN INVESTIGATION ON REACTIVE SINTERING OF NANO-CRYSTALLINE TiO2 -Al POWDER PREPARED BY MECHANICAL ALLOYING}, 
abstract ={In this research an ultra-fine grained composite structure consisting of an intermetallic matrix together with dispersed nano-sized Al2O3 obtained via mechanical activation of TiO2 and Al in a high energy ball mill and sintering of consolidated samples. Phase composition and morphology of the milled and sintered samples were evaluated by XRD and SEM techniques Thermal behavior of the powder sample milled for 8 hours was evaluated by DTA technique. DTA results showed that, the reaction happens in two steps. The first step is the aluminothermic reduction of TiO2 with Al. XRD observations reveals that minor amount of Ti3Al phase formed during reduction reaction together with TiAl and Al2O3 major phases. This intermetallic phase disappeared when sintering temperature was increased to 850 ºC. The second step in DTA is related to a reaction between residual Al in the system (partly dissolved in TiAl lattice) and the Ti3Al phase produced earlier at lower temperatures. SEM micrographs reveal that by completion of the reduction reaction more homogeneous and finer microstructure is observable in sintered samples.},  
Keywords = {γ-TiAl, nano-composite, mechanical alloying, aluminothermic reduction},
volume = {7},
Number = {3}, 
pages = {0-0}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-177-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-177-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {Safarzadeh, Mohammadtaher and Boutorabi, seyed Mohammad ali and Arab, Asghar},  
title = {The effects of anodizing condition and post treatment on the growth of nickel nanowires using Anodic Aluminum Oxide}, 
abstract ={The effects of anodizing condition and post treatment on the growth of nickel nanowires, were investigated. A two-step anodizing process was applied in phosphoric and oxalic acid solution. Nickel electrochemical plating was applied to fill Anodic Aluminum Oxide (AAO) pores. For pore filling enhancement, AAO surfaces were treated by silver predeposition. After electroplating, aluminum and oxide layer of some specimens were removed. The results showed that silver preplating increases the pore filling and as the applied voltage becomes higher, the pores diameter decreases.},  
Keywords = {anodizing, nanopores, aluminum oxide, deposition},
volume = {7},
Number = {3}, 
pages = {0-0}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-167-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-167-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {Khoshjavan, Saber and Heidary, Mohammad and Rezai, Bahram},  
title = {Estimation of coal swelling index based on chemical properties of coal using artificial neural networks}, 
abstract ={Free swelling index (FSI) is an important parameter for cokeability and combustion of coals. In this research, the effects of chemical properties of coals on the coal free swelling index were studied by artificial neural network methods. The artificial neural networks (ANNs) method was used for 200 datasets to estimate the free swelling index value. In this investigation, ten input parameters such as moisture, volatile matter (dry), fixed carbon (dry), ash (dry), total sulfur (organic and pyretic)(dry), (British thermal unit (Btu)/lb) (dry), carbon (dry), hydrogen (dry), nitrogen (dry) as well as oxygen (dry) were used. For selecting the best model for this study the outputs of models were compared. A three-layer ANN was found to be optimum with architecture of ten and four neurons in first and second hidden layer, respectively, and one neuron in output layer. Results of artificial neural network shows that training, testing and validating data’s square correlation coefficients (R2) achieved 0.99, 0.92 and 0.96, respectively. The sensitivity analysis showed that the highest and lowest effects of coal chemical properties on the coal free swelling index were nitrogen (dry) and fixed carbon (dry), respectively. Keywords: Coal Chemical Properties, Free Swelling Index, Artificial Neural Networks (ANNs), Cokeability and Back Propagation Neural Network (BPNN).},  
Keywords = {Keywords: Coal chemical properties, free swelling index, artificial neural networks (ANNs), cokeability and Back Propagation Neural Network (BPNN).},
volume = {7},
Number = {3}, 
pages = {0-0}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-102-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-102-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {P.Karimi,  and K.S.Hui,  and K.Komal,},  
title = {HYDROTHERMAL SYNTHESIS OF YTTRIUM ORTHOVANADATE (YVO4) AND ITS APPLICATION IN PHOTO CATALYTIC DEGRADATION OFSEWAGE WATER}, 
abstract ={Abstract: (Y2O3) and ethyl acetate as a mineralizer by hydrothermal method at a low temperature (T=.230°C, andP=100bars).The as-prepared powders were characterized by X-ray Diffraction (XRD), Fourier Transform InfraredSpectroscopy (FTIR), Scanning Electron Microscopy (SEM), UV-V Spectroscopy and Chemical Oxygen Demand(COD) of the sewage water, respectively. The results show that hydrothermal method can greatly promote thecrystallization and growth of YVO4 phase. XRD pattern clearly indicates the tetragonal structure and crystallanity. AnFTIR spectrum of the YVO4 shows the presence of Y-O and V-O bond, respectively. The presence of these two peaksindicates that yttrum vanadate has been formed. UV-V is absorption spectra suggesting that YVO4 particles havestronger UV absorption than natural sunlight and subsequent photocatalytic degradation data also confirmed theirhigher photocatalytic activity.In this paper, YVO4 powder was successfully synthesized from Vanadium Pentaoxide (V2O5), Yttrium Oxide},  
Keywords = {Keywords: XRD, FTIR, SEM, Hydrothermal Growth, Photocatalysis, COD.},
volume = {7},
Number = {3}, 
pages = {25-30}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-288-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-288-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {N.EslamiRad*,  and Ch.Dehghanian,},  
title = {EFFECTS OF CO-DEPOSITION OF CR2O3 AND MoS2 ON CORROSION PROPERTIES OF NANOCOMPOSITE ELECTROLESS NICKELCOATING}, 
abstract ={Abstract: Electroless Nickel (EN) composite coatings embedded with Cr2O3 and/or MoS2 particles were deposited to combine the characters of both Cr2O3 and MoS2 into one coating in this study. The effects of the co-deposited particles on corrosion behavior of the coating in 3.5% NaCl media were investigated. The results showed that both Ni-P and Ni-P composite coatings had significant improvement on corrosion resistance in comparison to the substrate. Codeposition of Cr2O3 in coating improved corrosion characteristic but co-deposition of MoS2 decreased corrosion resistance of the coating.},  
Keywords = {Keywords: Electroless nickel, composite coating, Cr2O3, MoS2, corrosion resistance, Polarization, Impedance.},
volume = {7},
Number = {4}, 
pages = {1-7}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-324-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-324-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {M.Rezvani*,},  
title = {THE EFFECT OF COMPLEX NUCLEATING AGENT ON THE PHYSICAL AND CHEMICAL PROPERTIES OF Li2O-Al2O3-SiO2 GLASS CERAMIC}, 
abstract ={Abstract: In the present work, effect of the nucleating agent such as TiO2, ZrO2, P2O5, Ye2O3 and CeO2 in single, double, triple and fourth systems on the crystallization behavior of various compositions was studied. Using differential thermal analysis (DTA), the composition of Li2O-Al2O3-SiO2 (LAS) was optimized and the coefficient of thermal expansion (CTE), three point flexural strength, hardness, thermal shock resistance, and chemical resistance of the most favorable composition were evaluated. The crystalline phase was determined by the x-ray diffractometry. Moreover, the micro-structure of the samples was studied by SEM technique. According to the results, -Eucryptites (high quartz solid solution) was the main crystalline phase and the CTE values of the optimized sample were determined as 1.65-1.93 10-6 in the temperature range of 20-500 oC. Furthermore, three point bending strength ranged from 139 to 155 MPa.},  
Keywords = {Keyword: Glass, LAS Glass Ceramic, Eucryptite , Low Thermal Expansion .},
volume = {7},
Number = {4}, 
pages = {8-15}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-325-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-325-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {Z.Ghaferi,  and K.Raeissi,  and M.A.Golozar,,  and A.Saatchi,  and S.Kabi,},  
title = {COMPARISON OF ELECTRODEPOSITION ASPECTS AND CHARACTERISTICS OFNi-WAND Co-WALLOYNANOCRYSTALLINE COATINGS}, 
abstract ={Abstract: current densities. Electrochemical impedance spectroscopy (EIS) results showed that the codeposition mechanism oftungsten in Ni-W deposition is the reduction of tungsten oxide which changed to the reduction of tungsten-containingion complexes at higher current densities. In Co-W electrodeposition, the tungsten codeposition takes place viareduction of tungsten oxide, although, the role of tungsten-containing complexes at higher current densities cannot beruled out. The surface morphology of Ni-W coatings was crack-free and was strongly dependent on deposition currentdensity. In addition, higher grain size and lower tungsten content were obtained by increasing the current density. InCo-W coatings, no obvious variation in surface morphology was observed except for the fine cracks appeared athigher current densities. In this system the grain size remained almost constant with increasing current density. Themicrohardness values of Ni-W and Co-W coatings decreased due to the increase in the grain size and/or decrease intungsten content.Ni-W and Co-W alloy nanocrystalline coatings were electrodeposited on copper substrate at different},  
Keywords = {Co-W; Ni-W; electrodeposition; EIS; nanocrystalline; coating},
volume = {7},
Number = {4}, 
pages = {16-24}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-308-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-308-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {S.Ahmadi,,  and H.R.Shahverdi*,  and S.S.Saremi,},  
title = {KINETICS OF -Fe NANOCRYSTALLIZATION IN Fe55Cr18Mo7B16C4 BULK AMORPHOUS ALLOY}, 
abstract ={Abstract: In this research work, crystallization kinetics of Fe55Cr18Mo7B16C4 alloy was evaluated by X-ray diffraction, TEM observations and differential scanning calorimetric tests. In practice, crystallization and growth mechanisms were investigated using DSC tests in four different heating rates. Results showed that a two -step crystallization process occurred in the alloy in which - Fe phase was crystallized in the first step after annealing treatments. Activation energy for the first step of crystallization i.e. - Fe was measured to be 276 (kj/mol) according to Kissinger model. Further, avrami exponent calculated from DSC curves was 2 and a three -dimensional diffusion controlled mechanism with decreasing nucleation rate was observed in the alloy. It is also known from the TEM observations that crystalline á – Fe phase nucleated in the structure of the alloy in an average size of 10 nm and completely mottled morphology.},  
Keywords = {Keywords: Bulk Metallic Glasses (BMGs); Structural amorphous steels (SASs); Avrami exponent; Kinetic models},
volume = {7},
Number = {4}, 
pages = {25-29}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-326-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-326-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {Y.Fouad,},  
title = {FATIGUE BEHAVIOUR OFA ROLLED AZ31 MAGNESIUM ALLOYS PREPARED BY EPAND BB CONDITIONS}, 
abstract ={Abstract: Rotating bending fatigue tests have been performed using smooth specimens of a rolled AZ31 magnesium alloy in laboratory air at ambient temperature. Fatigue strength and characteristic was evaluated and fracture mechanism was discussed on the basis fracture surface analysis. Electrical polishing (EP) as well as deep rolling (ball burnishing (BB)) U-notched specimens were performed on two groups of samples, to evaluate optimum conditions for fatigue life. The microstructure and tensile properties of roll cast (RC) Mg- 3% Al- 1% Zn (AZ31) was investigated. The fatigue strength of 107 cycles around 100 MPa for deep rolling while it was around 40 MPa for Electrical polishing. It was very important to understand the effect of (ball burnishing (BB)) conditions on the hardness of the surface through to the core. The two procedures improved the fatigue performance, but better improve in results were found in ball burnishing. The growth of small cracks initiated at the surface coincided with the FCP characteristic after allowing for crack closure for large cracks, but the operative fracture mechanisms were different between small and large cracks. At the subsurface crack initiation site, smooth facets were always present regardless of applied stress level.},  
Keywords = {Keywords: AZ31, Fatigue, Surface treatment, Ball burnishing, Electrical Polishing.},
volume = {7},
Number = {4}, 
pages = {30-34}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-310-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-310-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {M.FarzalipourTabriz,  and M.GhassemiKakroudi*,},  
title = {THERMO-MECHANICAL DESIGN OPTIMIZATION OF CORDIERITE–MULLITE BASED KILN FURNITURE}, 
abstract ={Abstract: Cordierite-Mullite based kiln furnitures are widely used in fast-firing of ceramic products because of their low thermal expansion which confer them a very good ability to thermal shock resistance. Difference in CTE of constituent phase can develop damage during thermal cycling due to internal stresses. Increase in industrial competitiveness leads to the development of new means for extending refractory life and increasing reliability of industrial tools so investigations regarding the structuralmechanical behaviour of refractory systems are becoming essential. In this paper, Thermo-mechanical design of commercial Cordierite-Mullite based kiln furniture was investigated by using finite element method (FEM) and possible solutions for improvement of working life have been considered. The results indicated that the change of the kiln furniture geometry can decrease the maximum thermomechanical stress in study conditions which can prolong the refractory service life. Obtained results indicate the existence of an optimal thickness for the section under maximum thermo-mechanical stress. Increasing filet radius of ring region from 3 to 9 mm decreases thermo-mechanical stress value from 113 to 93 MPa.},  
Keywords = {Keywords: kiln furniture, cordierite-mullite refractory, finite elements analysis},
volume = {7},
Number = {4}, 
pages = {35-41}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-327-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-327-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}

@article{ 
author = {H.Rafiee*,,  and S.Rastegari,  and H.Arabi,  and M.Mojaddami,},  
title = {EFFECTS OF TEMPERATURE AND AL-CONCENTRATION ON FORMATION MECHANISM OF AN ALUMINIDE COATING APPLIED ON SUPER ALLOY IN738LC THROUGH A SINGLE-STEP HIGH ACTIVITYGAS DIFFUSION PROCESS}, 
abstract ={Abstract: activity gas diffusion process has been investigated in this research. Effects of coating temperature and aluminumconcentration in powder mixture on formation mechanism were studied using optical and scanning electronmicroscopes, EDS and X-ray diffraction (XRD) techniques. For this purpose two different packs containing 1 and 2wt% aluminum powder, were used for coating the samples at two temperatures, 850ºC and 1050ºC. The ratio of Al toactivator was kept constant in both packs. By increasing the Al content in high activity powder mixture, theconcentration of diffused Al increased in the coating layers, and the thickness of coating increased. At 1050ºC as therate of diffused Al to the interdiffusion zone increased, this zone gradually transformed to outer coating phases. At850ºC coating formed by inward diffusion of Al, but at 1050ºC it was initially formed by inward diffusion of Al followedby outward diffusion of Ni.Formation mechanism of an aluminide coating on a nickel base superalloy IN738LC via a single step high},  
Keywords = {Gas Phase Aluminizing, Formation Mechanism, high Activity, Effect of Temperature, Inward and outward diffusion},
volume = {7},
Number = {4}, 
pages = {42-49}, 
publisher = { Iran University of Science & Technology},
title_fa = {},
abstract_fa ={},
keywords_fa = {},
url = {http://ijmse.iust.ac.ir/article-1-309-en.html},  
eprint = {http://ijmse.iust.ac.ir/article-1-309-en.pdf},  
journal = {Iranian Journal of Materials Science and Engineering},  
issn = {1735-0808}, 
eissn = {2383-3882}, 
year = {2010}  
}