A high-strain-rate alumina-based ceramic composite

被引：9

作者：

Chen, T ^{[1
]}

Mecartney, ML ^{[1
]}

机构：

[1] Univ Calif Irvine, Dept Mat Sci & Chem Engn, Irvine, CA 92697 USA

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2005年 / 88卷 / 04期

关键词：

D O I：

10.1111/j.1551-2916.2005.00190.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

An alumina-based ceramic codispersed with zirconia and mullite was synthesized with a submicron grain size. At high temperatures, steady-state creep with very limited grain growth was achieved for samples with 40 vol% alumina, 30 vol% zirconia, and 30 vol% mullite (AZ30M30). Constant stress compressive creep behavior of AZ30M30 showed a stress exponent of 2 and an activation energy of 880 kJ/mol. A strain rate of 0.01 s(-1) was obtained for AZ30M30 at 60 MPa and 1500 degrees C, indicating the potential for high-strain-rate superplasticity.

引用

页码：1004 / 1006

页数：3

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