EFFECT OF ALKALI AND ALKALINE-EARTH METAL-IONS ON THE THERMAL-EXPANSION OF NEPHELINE

被引：0
|
作者：
OTA, T
YAMAI, I
ZHANG, S
机构：
来源：
NIPPON SERAMIKKUSU KYOKAI GAKUJUTSU RONBUNSHI-JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 1993年 / 101卷 / 05期
关键词：
NEPHELINE; HIGH-THERMAL-EXPANSION; NAALSIO4; SOLID-SOLUTION;
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：
Effects of alkali and alkaline earth metal ions on sintering and the thermal expansion behaviors of nepheline were investigated. Densification at lower sintering temperatures was promoted by Li2CO3 or Na2CO3 addition. The thermal expansion of nepheline decreased on substitution of Li+ for Na+, and increased on substitution of K+ for Na+. Nepheline solid solutions in the system MxNa1-xAlSiO4 (M = Li and K) had mean axial thermal expansion coefficients ranging from 14 x 10(-6)/degrees-C to 20 x 10(-6)/degrees-C from room temperature to 1000-degrees-C.
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页码：575 / 578
页数：4
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