Synthesis of Na2O-RE2O3-SiO2 (RE = Sm, Gd, Dy, Y, Ho, Er and Yb) system glasses and their electrical properties

被引：8
|
作者：
Asahi, T
Kamada, M
Imai, S
Nakayama, S
机构：
[1] Niihama Natl Coll Technol, Dept Mat Engn, Niihama 7928580, Japan
[2] Niihama Natl Coll Technol, Dept Appl Chem & Biotechnol, Niihama 7928580, Japan
[3] Sharp Takaya Elect Ind Co Ltd, Okayama 7090301, Japan
来源：
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2000年 / 108卷 / 08期
关键词：
sodium rare-earth silicate glass; Na+ ionic conductor; electrical property; glass transition temperature; crystallization temperature; crystal melting temperature; ionic radius;
D O I：
10.2109/jcersj.108.1260_774
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：
Seven kinds of sodium rare-earth silicate glass, (Na2O)(35.7)(RE2O3) (7.2)(SiO2)(57.1)(RE = Sm, Gd, Dy, P, Ho, Er and Yb), were synthesized by melting a mixture of Na2CO3, RE2O3 and SiO2 and their electrical properties were investigated, The densities of glasses were in fairly good agreement with the theoretical densities predicated for Na5RESi4O12 ceramics, The crystallization temperature and the crystal melting temperature linearly decreased with increasing the ionic radius of RE. The highest electrical conductivity at 200 degrees C (1.55 x 10(-4) S . cm(-1)) was achieved for (Na2O)(35.7)(Yb2O3)(7.2) (SiO2)(57.1) The electrical conductivity slightly decreased with increasing the ionic radius of RE.
引用
收藏
页码：774 / 776
页数：3
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