CRYSTAL-GROWTH INHIBITOR IN BINARY BOROSILICATE GLASS COMPOSITE GALLIUM OXIDE

被引：12

作者：

JEAN, JH ^{[1
]}

GUPTA, TK ^{[1
]}

机构：

[1] ALCOA ELECTR PACKAGING INC,ALCOA CTR,PA 15069

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1993年 / 76卷 / 03期

关键词：

Cristobalite - Gallium oxide;

D O I：

10.1111/j.1151-2916.1993.tb03670.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：

The effect of gallium oxide on cristobalite formation in binary borosilicate glass composite, containing a low-softening borosilicate glass (BSG) and a high-softening high-silica glass (HSG), has been studied. X-ray diffraction results show that with a small amount of gallium oxide, 2.5-10 vol%, the precipitation of cristobalite at elevated temperatures is prevented. This result is further evidenced by linear thermal expansion measurement, in which, in contrast to the gallium oxide-free sample, the thermal expansion coefficients (TCE) of the composite with gallium oxide remain unchanged with sintering time at temperatures investigated and, moreover, are very close to the theoretically calculated values.

引用

页码：751 / 753

页数：3