FINE-GRAINED SILICON-NITRIDE CERAMICS PREPARED FROM BETA-POWDER

被引：88

作者：

MITOMO, M

HIROTSURU, H

SUEMATSU, H

NISHIMURA, T

机构：

[1] National Institute for Research in Inorganic Materials, Tsukuba-Shi, Ibaraki, 305, 1-1, Namiki

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1995年 / 78卷 / 01期

关键词：

D O I：

10.1111/j.1151-2916.1995.tb08385.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Fine beta-powder with an average particle size of 0.28 mu m was prepared by grinding and centrifugal sedimentation of submicrometer beta-powder. Fine- and uniform-grained ceramics mere fabricated from the powder by hot pressing. The average grain size of the ceramic was 0.21 mu m. It was shown that this kind of microstructure was desirable for the matrix of in situ composite. It was also shown that the ceramics could be superplastically deformed at a temperature as low as 1500 degrees C.

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页码：211 / 214

页数：4

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