Article ID Journal Published Year Pages File Type
1500580 Scripta Materialia 2009 4 Pages PDF
Abstract

The influence of an alumina content (2 wt.%) on the oxidation behavior of hot-pressed α-SiC is studied. Sintering of α-SiC powder with alumina rests on the formation of a liquid phase corresponding to the eutectic composition in the SiO2–Al2O3 system. The oxidation kinetics of pure α-SiC at 1470 K under helium with an oxygen partial pressure of 0.1 Pa is linear, although silica is produced. The formation of Al-rich crystallized phase could be responsible for the slower oxidation kinetics of alumina-doped SiC.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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