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Thermal stability of cordierite/ silicon carbide composites after cyclic thermal shock

M. POSARAC1,* , M. DIMITRIJEVIC2, T. VOLKOV-HUSOVIC2, A. EGELJA1, A. DEVECERSKI1, B. MATOVIC1

Affiliation

  1. Institute of Nuclear Sciences “ Vinca”, P.O. Box 522, 11001 Belgrade, Serbia
  2. Faculty of Technology and Metallurgy, Karnegijeva 4, POB 3503

Abstract

In this paper composite material made from silicium carbide and cordierite was used in experiments. Behavior of the material in conditions of rapid temperature changes was investigated. Modified water quench test was applied to determine thermall stability behavior of the samples. Image analysis was used to monitored level of surface deterioration before and during quenching. Ultrasonic measurements were used for determination of dynamic Young modulus of elasticity and strength degradation during quenching. Obtained results are used for analysis of the behavior of the samples in conditions of rapid temperature changes and method for the improvement of the thermal stability behavior..

Keywords

Ultrasonic velocity, Image analysis, Refractories, cordierite/SiC composite ceramics, Thermal shock resistance.

Submitted at: Feb. 25, 2008
Accepted at: April 4, 2008

Citation

M. POSARAC, M. DIMITRIJEVIC, T. VOLKOV-HUSOVIC, A. EGELJA, A. DEVECERSKI, B. MATOVIC, Thermal stability of cordierite/ silicon carbide composites after cyclic thermal shock, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 4, pp. 883-886 (2008)