MICROSTRUCTURE OF SI3N4 WHISKER PREPARED FROM DIATOMACEOUS-EARTH

Authors
MIZUHARA Y NOGUCHI M ISHIHARA T TAKITA Y SHIOMITSU T ARAI H
Citation
Y. Mizuhara et al., MICROSTRUCTURE OF SI3N4 WHISKER PREPARED FROM DIATOMACEOUS-EARTH, Journal of the European Ceramic Society, 12(2), 1993, pp. 111-116
Citations number
11
Categorie Soggetti
Material Science, Ceramics
Journal title
Journal of the European Ceramic Society → ACNP
ISSN journal
09552219
Volume
12
Issue
2
Year of publication
1993
Pages
111 - 116
Database
ISI
SICI code
0955-2219(1993)12:2<111:MOSWPF>2.0.ZU;2-M
Abstract
Silicon nitride whiskers were prepared by carbo-thermal reduction and nitridation of diatomaceous earth at temperature of 1350-degrees-C und er the presence of nitrogen and ammonia. Scanning and transmission ele ctron microscopy (SEM), electron probe micro-analysis (TEM) and X-ray diffraction were used to characterize the microstructure. SEM studies indicated that the whiskers were quite straight and hexagonal in cross -section. The whiskers were found to be highly crystalline, as determi ned by TEM analysis.