Bandyopadhyay, Siddhartha and Mukerji, Joydeb and Roychoudhury, K (1989) Sintering and properties of beta-'-sialon with a nitrogen-rich Y2O3 sintering aid. Journal of the American Ceramic Society, 72 (6). pp. 1061-1064. ISSN 0002-7820

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Abstract

The synthesis of dense sintered sialon with external additives selected from the system Y2O3–AIN–SiO2 is reported. The highest density (3.21 g/cm3) was achieved at 1750°C at 90 min of sintering with 5 wt% additive. The degree of sialon substitution increased with the amount of liquid; the YSiO2N crystalline phase formed concurrently. Strength degradation occurred above 1000°C. The fracture toughness of the material sintered with a lower amount of sintering aid remained relatively unchanged to 1200°C. The material with more additive exhibited decreased toughness above 1000°C.

Item Type:	Article
Subjects:	Engineering Materials
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	05 Dec 2013 09:39
Last Modified:	07 Mar 2014 08:24
URI:	http://cgcri.csircentral.net/id/eprint/2403

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