Volume 4, Number 3 (Summer &Autumn 2007 2007)                   IJMSE 2007, 4(3): 44-52 | Back to browse issues page


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M. Huger,, C. Gault, T. Chotard. HIGH TEMPERATURE ELASTIC PROPERTIES OF REFRACTORY MATERIALS. IJMSE. 2007; 4 (3) :44-52
URL: http://ijmse.iust.ac.ir/article-1-123-en.html

Abstract:   (6647 Views)
Abstract: A pulse-echo technique, based on ultrasonic "long-bar" mode (LBM) velocity measurements, working up to 1700°C is described. Magnetostrictive transducers and ultrasonic lines used in a 40-85 kHz frequency range are detailed. The conditions of choice of fundamental parameters (frequency, line geometry, sample size) are discussed in relation with the nature and the microstructure of the materials under test. This technique can be used to study the variations of elastic moduli of materials at high temperature. Examples are reported concerning a wide range of refractory materials used in steel making industry: Al2O3/C refractories used for ladles shrouds, Al2O3-MgAl2O4 castables used for steel ladle lining, and MgO/C refractories used for basic oxygen furnace.
     
Type of Study: Research paper |

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