HIGH-TEMPERATURE CREEP AND DEFORMATION-BEHAVIOR OF AL2O3/SIC NANOCOMPOSITES

被引：0

作者：

NAKAHIRA, A ^{[1
]}

SEKINO, T ^{[1
]}

SUZUKI, Y ^{[1
]}

NIIHARA, K ^{[1
]}

机构：

[1] OSAKA UNIV,INST SCI & IND RES,8-1 MIHOGAOKI,IBARAKI,OSAKA 567,JAPAN

来源：

ANNALES DE CHIMIE-SCIENCE DES MATERIAUX | 1993年 / 18卷 / 5-6期

关键词：

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Microstructure and high-temperature mechanical properties were investigated for Al2O3/SiC nanocomposites. The Al2O3/SiC nanocomposites were fabricated by hot-pressing the mixture of fine Al2O3 and SiC powders at 1600 to 2000-degrees-C in N2 atmosphere under 30 MPa. High resolution transmission electron microscopic observation revealed that nanometer-sized SiC particles were mainly dispersed within Al2O3 matrix grains and, in part, dispersed at grain boundaries. High-temperature mechanical properties such as strength, hardness and creep resistances of Al2O3/SiC nanocomposites were significantly improved by the nano-sized intragranular SiC dispersion.

引用

页码：403 / 408

页数：6

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