Ionic conductivities of apatite type NdX(SiO4)6O1.5X-12 (X=9.20 and 9.33) single crystals

被引：64

作者：

Nakayama, S ^{[1
]}

Sakamoto, M

Highchi, M

Kodaira, K

机构：

[1] Niihama Natl Coll Technol, Dept Appl Chem & Biotechnol, Niihama 7928580, Japan

[2] Yamagata Univ, Fac Sci, Dept Mat & Biol Chem, Yamagata 9908560, Japan

[3] Hokkaido Univ, Grad Sch Engn, Dept Mat Technol, Sapporo, Hokkaido 0608628, Japan

来源：

JOURNAL OF MATERIALS SCIENCE LETTERS | 2000年 / 19卷 / 02期

关键词：

D O I：

10.1023/A:1006674708833

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The relationship between the electrical properties and the vacancy concentration of oxide ions on the 2a site in single crystals of Ndx(SiO4)6O1.5x-12, which are responsible for ionic conduction, is presented. Conductivities are determined by a complex plane impedance analysis and are expected to be enhanced by the introduction of the vacancies of oxide ions into the 2a site running along the c-axis of the apatite structure. Single crystal of Ndx(SiO4)6O1.5x-12 is prepared from the Nd2O3 (99.9%) and SiO2 (99.9%) powders. It is confirmed from the X-ray diffraction measurement that the phase existing in the single crystal is only an apatite structural phase with a space group P63/m.

引用

页码：91 / 93

页数：3

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