Si{sub 3}N{sub 4} whisker upper layer formation on a SiC-Al{sub 2}O{sub 3} porous body
Book
·
OSTI ID:462744
- Univ. de Chile, Santiago (Chile). Dept. Quimica Basica
- Comision Chilena de Energia Nuclear, Santiago (Chile)
A thin upper layer on a SiC-Al{sub 2}O{sub 3} porous substrate was formed by spray deposition of a Si-C composite or SiC fine powder 55.0 wt% total powder suspension. The formation of a compact layer of Si{sub 3}N{sub 4} whisker or a SiC smaller pore size than the porous substrate was obtained under thermal treatment up to 1,400 C for 3--4 h in a nitrogen or argon gas environment, respectively. SEM microstructure observations and a qualitative (DRX-EDAX) analysis of both sintered porous bodies were performed to confirm the nature of both layers.
- OSTI ID:
- 462744
- Report Number(s):
- CONF-960401--; ISBN 1-55899-334-7
- Country of Publication:
- United States
- Language:
- English
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