Sintering of β-Si3N4 powder derived by SHS

被引：0

作者：

Jiang, JX ^{[1
]}

Wang, PL

Cheng, YB

Chen, WW

Zhuang, HR

Yan, DS

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[2] Monash Univ, Sch Phys & Mat Engn, Clayton, Vic 3800, Australia

来源：

JOURNAL OF INORGANIC MATERIALS | 2004年 / 19卷 / 06期

关键词：

SHS; beta-Si3N4; sintering process; sintering aids; mechanical properties;

D O I：

暂无

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：

The sintering Of beta-Si3N4 powder synthesized by self-propagating high-temperature synthesis was studied with the addition of MgO, Al2O3, Y2O3 as sintering additives. MgO was found to be the effective sintering aids, and beta-Si3N4 could be densified at 1600degreesC under 20MPa with the addition of 10wt% MgO. XRD results showed that the additives did not react with beta-Si3N4, existing in glassy phase of the sintered sample, with the exception of Al2O3, which reacted with beta-Si3N4 to form beta-Sialon phase. The samples with MgO added had better mechanical properties than that of samples doped with Y2O3 and Al2O3. The microstructure of sintered samples was observed by SEM.

引用

页码：1431 / 1435

页数：5

共 9 条

[1] Microstructure and formation mechanism of combustion-synthesized rodlike Ca α-sialon crystals [J].

Chen, KX ;

Jin, HB ;

Oliveira, M ;

Zhou, HP ;

Ferreira, JMF .

JOURNAL OF MATERIALS RESEARCH, 2001, 16 (07) :1928-1934

[2] Synthesis of (Ca,Mg)-α-sialon from slag by self-propagating high-temperature synthesis [J].

Chen, WW ;

Wang, PL ;

Chen, DY ;

Zhang, BL ;

Jiang, JX ;

Cheng, YB ;

Yan, DS .

JOURNAL OF MATERIALS CHEMISTRY, 2002, 12 (04) :1199-1202

[3]

CHEN Y, 1997, J CERAM SOC CHINA, V25, P183

[4] SIAION CERAMICS [J].

EKSTROM, T ;

NYGREN, M .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1992, 75 (02) :259-276

[5] Combustion synthesis of AlN-SiC solid solution particles [J].

Kexin, C ;

Haibo, J ;

Zhou, HP ;

Ferreira, JMF .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2000, 20 (14-15) :2601-2606

[6]

LI JP, 2001, NAIHUO CAILIAO, V35, P105

[7]

Merzhanov AG., 1972, DOKL AKAD NAUK SSSR, V204, P429

[8]

WILLIAM AS, 1985, J AM CERAM SOC B, V64, P304

[9]

YI HC, 1990, J MATER SCI, V25, P1159

← 1 →