Electrical properties of (K2O)35.7 (RE2O3)7.2 (SiO2)57.1 (RE = Sm, Gd, Dy, Ho, Y, Er, Yb) glasses

被引：7
|
作者：
Nakayama, S
Asahi, T
Aung, YL
Ohhara, R
Sakamoto, M
机构：
[1] Niihama Natl Coll Technol, Dept Appl Chem & Biotechnol, Niihama 7928580, Japan
[2] Niihama Natl Coll Technol, Dept Mat Engn, Niihama 7928580, Japan
[3] Yamagata Univ, Fac Sci, Dept Mat & Biol Chem, Yamagata 9908560, Japan
来源：
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2004年 / 112卷 / 1304期
关键词：
glass; potassium rare earth silicate; alkali metal ionic conductor; differential thermal analysis; conductivity;
D O I：
10.2109/jcersj.112.238
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 potassium rare earth silicate glasses, (K2O) (35.7) (RE2O3) (7.2) (SiO2) (57.1) (RE = Sm, Gd, Dy, Ho, Y, Er, Yb), were prepared by melting a mixture of K2CO3, RE2O3 and SiO2. Density increased with increasing atomic weight of RE. An exothermic peak attributable to crystallization was observed in the range between 720 and 800degreesC. Powder X-ray diffraction analysis showed the formation of two distinct phases, KREO2 and K2SiO3, above crystallization temperature. The conductivity of (K2O) (35.7) (Y2O3) (7.2) (SiO2) (57.1) glass was similar to those of K5YSi4O12 ceramics with the same composition and (K2O) (36) (SiO2) (64) glass not containing Y2O3.
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页码：238 / 241
页数：4
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