Effects of gadolinia and alumina addition on the densification and toughening of silicon carbide

被引：35

作者：

Chen, Z

机构：

[1] Tohoku Univ, Sendai

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1996年 / 79卷 / 02期

关键词：

D O I：

10.1111/j.1151-2916.1996.tb08160.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：

SiC with mixtures of Al2O3 and Gd2O3 additions were effective in densifying SiC. The density of 98% of theoretical density was achieved with the Gd2O3 and Al2O3 eutectic composition. It is suggested that the improvement in density is due to liquid phase formed between Al2O3 and Gd2O3. The sintered bodies have an improved fracture toughness due to the crack deflection mechanism.

引用

收藏

页码：530 / 532

页数：3

相关论文

共 12 条

[1] A CRITICAL-EVALUATION OF INDENTATION TECHNIQUES FOR MEASURING FRACTURE-TOUGHNESS .1. DIRECT CRACK MEASUREMENTS [J].

ANSTIS, GR ;

CHANTIKUL, P ;

LAWN, BR ;

MARSHALL, DB .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1981, 64 (09) :533-538

[2]

CORDREY L, 1990, CERAM TRANS, V7, P618

[3] MICROSTRUCTURAL INVESTIGATION AND INDENTATION RESPONSE OF PRESSURELESS-SINTERED ALPHA-SIC AND BETA-SIC [J].

HANNINK, RHJ ;

BANDO, Y ;

TANAKA, H ;

INOMATA, Y .

JOURNAL OF MATERIALS SCIENCE, 1988, 23 (06) :2093-2101

[4] TOUGHENING BEHAVIOR OF SILICON-CARBIDE WITH ADDITIONS OF YTTRIA AND ALUMINA [J].

KIM, DH ;

KIM, CH .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1990, 73 (05) :1431-1434

[5] HOT-PRESSING BEHAVIOR OF SILICON-CARBIDE POWDERS WITH ADDITIONS OF ALUMINUM-OXIDE [J].

LANGE, FF .

JOURNAL OF MATERIALS SCIENCE, 1975, 10 (02) :314-320

[6]

Mizuno M., 1977, Yogyo-Kyokai-Shi, V85, P543, DOI 10.2109/jcersj1950.85.987_543

[7]

MULLA MA, 1991, AM CERAM SOC BULL, V70, P439

[8] PRESSURELESS SINTERING OF SIC [J].

OMORI, M ;

TAKEI, H .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1982, 65 (06) :C92-C92

[9] IN SITU-TOUGHENED SILICON-CARBIDE [J].

PADTURE, NP .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1994, 77 (02) :519-523

[10]

PROCHAZKA S, 1975, P C CER HIGH PERF AP, P239