Effect of B2O3 addition on the sintering of alpha-Al2O3

被引：24

作者：

Misirli, Z ^{[1
]}

Erkalfa, H ^{[1
]}

Ozkan, OT ^{[1
]}

机构：

[1] UNIV ISTANBUL, FAC ENGN, DEPT MET, AVCILAR, TURKEY

来源：

CERAMICS INTERNATIONAL | 1996年 / 22卷 / 01期

关键词：

D O I：

10.1016/0272-8842(95)00050-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：

Boron-containing alumina materials in the Al2O3-B2O3 binary phase system have attracted special attention recently due to the stable, whisker-like crystalline compound aluminum borate (9Al(2)O(3).2B(2)O(3)). Hence in this study, the effect of the addition of B2O3 UP to 1.5 wt% on the sintering characteristics of alpha-Al2O3 has been investigated in the sintering temperature range of 1450-1650 degrees C. The effect of B2O3 addition on the bulk density and porosity, on the mechanical properties and on the microstructure of alpha-Al2O3 have been elucidated. The formation and the stability of the aluminum borate phase was also investigated in the range of sintering temperatures studied.

引用

页码：33 / 37

页数：5

共 6 条

[1]

LEVIN EM, 1964, PHASE DIAGRAMS CERAM

[2]

MARONO RT, 1970, THERMAL ANAL, V2

[3] FORMATION OF AL2O3 WHISKERS BY THERMAL-DECOMPOSITION OF 9AL2O3.2B2O3 WHISKERS [J].