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Synthesis and properties of ceramics in the SiC — B4C — MeB2 system
Journal article   Peer reviewed

Synthesis and properties of ceramics in the SiC — B4C — MeB2 system

O Grigor’ev, Yu Gogotsi, V Subbotin, N Brodnikovskii and G A Gogotsi
Powder metallurgy and metal ceramics, v 39(5), pp 239-250
Jun 2000

Abstract

ceramics Chemistry hot pressing sintering under pressure Ceramics, Glass, Composites, Natural Methods Characterization and Evaluation of Materials Metallic Materials silicon carbide properties
The effect of impurities and additives of titanium and zirconium borides on the structure and mechanical properties of SiC — B4C ceramics over a broad temperature range has been investigated. The ceramics was fabricated by hot pressing without a protective medium. Introduction of borides is accompanied by improvement in all the studied mechanical properties at room temperature, and the nature of hardening of the ceramics is practically independent of the type of SiC powders used. At high temperatures, the mechanical behavior of the ceramics is determined by the impurity composition: the ceramics obtained using abrasive powders loses strength beginning at 600°C, while using powders with decreased impurity content makes it possible to preserve the strength of the material up to a temperature of 1400°C.

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Web of Science research areas
Materials Science, Ceramics
Metallurgy & Metallurgical Engineering
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