EFFECT OF ALPHA-BETA[BETA'] PHASE-TRANSITION ON THE SINTERING OF SILICON-NITRIDE CERAMICS

被引：67

作者：

LEE, DD

KANG, SJL

PETZOW, G

YOON, DN

机构：

[1] KOREA ADV INST SCI & TECHNOL,DEPT MAT SCI & ENGN,SEOUL 131,SOUTH KOREA

[2] MAX PLANCK INST MET RES,PULVERMET LAB,W-7000 STUTTGART 80,GERMANY

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 03期

关键词：

phase transitions; densification; microstructure; silicon nitride; sintering;

D O I：

10.1111/j.1151-2916.1990.tb06591.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：

By using α‐Si3N4 and β‐Si3N4 starting powders with similar particle size and distribution, the effect of α‐β (β') phase transition on densification and microstructure is investigated during the liquid‐phase sintering of 82Si3N4·9Al2O3·9Y2O3 (wt%) and 80Si3N4·13Al2O3·5AIN·5AIN·2Y2O3. When α‐Si3N4 powder is used, the grains become elongated, apparently hindering the densification process. Hence, the phase transition does not enhance the densification. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：767 / 769

页数：3

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