Das, A C and Mukherjee, S and Niyogi, S K (1992) Monitoring thermal-shock damage development in refractories by stress-wave factor technique. Materials Evaluation, 50 (10). pp. 1240-1245. ISSN 0025-5327

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Abstract

The feasibility of the stress-wave-factor (SWF) technique as a potential nondestructive evaluation (NDE) method for monitoring thermal-shock damage development in an aluminosilicate castable refractory has been studied in this paper. The fired refractory specimens were subjected to single-quench thermal-shock and thermal-shock fatigue tests. The SWF and strength were found to decrease continuously with increase of quenching temperature differential, indicating quasistatic crack growth in the castable refractory. In the case of thermal-shock fatigue, the SWF as well as strength decreases exponentially with increasing number of cycles. The rates of decrease of SWF and strength become insignificant at higher cycles of thermal-shock fatigue. The good correlation between SWF and strength indicates that the SWF technique has high potential for use as an NDE method for monitoring thermal-shock damage development in refractories.

Item Type:	Article
Subjects:	Refractories
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	27 Nov 2013 11:45
Last Modified:	27 Nov 2013 11:45
URI:	http://cgcri.csircentral.net/id/eprint/2325

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