Intergranular glassy phase free SiC ceramics retains strength at 1500 °C

被引：32

作者：

Choi, HJ ^{[1
]}

Kim, YW

Mitomo, M

Nishimura, T

Lee, JH

Kim, DY

机构：

[1] Korea Inst Sci & Technol, Dept Mat Sci & Engn, Seoul 136791, South Korea

[2] Univ Seoul, Dept Mat Sci & Engn, Seoul 130743, South Korea

[3] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050044, Japan

[4] Seoul Natl Univ, Ctr Microstruct Sci Mat, Seoul 151744, South Korea

来源：

SCRIPTA MATERIALIA | 2004年 / 50卷 / 09期

关键词：

sintering; grain boundary structure; high-resolution electron microscopy; modeling; silicon carbide;

D O I：

10.1016/j.scriptamat.2004.02.008

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report SiC ceramics sintered with AlN and Sc2O3 (or Lu2O3) that retain room temperature strength to 1500 degreesC. The intergranular glassy phase has not been observed in the ceramics due to a designed-sintering additive and, thus, the unsatisfactory effect of glassy phases on the high temperature strength is eliminated. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：1203 / 1207

页数：5

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