Volume 4, Issue 3 (Summer &Autumn 2007 2007)
IJMSE 2007, 4(3): 44-52 |
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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
URL: http://ijmse.iust.ac.ir/article-1-123-en.html
Abstract: (21245 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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