Si3N4 Whisker Upper Layer Formation on a SiC-Al2O3 Porous Body
Autor: | A. Perez, P. Rojas, G. Baeza, G. Piderit, Patricio Toro |
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Rok vydání: | 1996 |
Předmět: | |
Zdroj: | MATERIALS RESEARCH SOCIETY SYMPOSIA PROCEEDINGS Artículos CONICYT CONICYT Chile instacron:CONICYT |
ISSN: | 1946-4274 0272-9172 |
DOI: | 10.1557/proc-431-309 |
Popis: | A thin upper layer on a SiC-A12O3 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 Si3N4 whisker or a SiC smaller pore size than the porous substrate was obtained under thermal treatment up to 1400°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 performanced to confirm the nature of both layers. |
Databáze: | OpenAIRE |
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