Structure and thermal expansion of KGe2(PO4)(3)

被引：29

作者：

Brochu, R ^{[1
]}

Louer, M ^{[1
]}

Alami, M ^{[1
]}

Alqaraoui, M ^{[1
]}

Louer, D ^{[1
]}

机构：

[1] FAC SCI RABAT,DEPT CHIM,RABAT,MOROCCO

来源：

MATERIALS RESEARCH BULLETIN | 1997年 / 32卷 / 01期

关键词：

inorganic compounds; ceramics; X-ray diffraction; thermal expansion;

D O I：

10.1016/S0025-5408(96)00161-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

KGe2(PO4)(3) has been prepared in both crystalline and vitreous forms. The NZP-type structure of the crystalline variety and its thermal expansion have been investigated by X-ray powder diffraction. The crystal structure has been refined by the Rietveld method in the space group R (3) over bar. The thermal expansion coefficients have been determined between room temperature and 600 degrees C and compared to dilatometry measurements. The parameters a and c have a positive and isotropic behavior and the average macroscopic thermal expansion coefficient, <alpha>, is 10 x 10(-6) degrees C-1 at 600 degrees C. A comparison with the thermal expansion of the related Li and Na compounds is reported.

引用

页码：113 / 122

页数：10

共 19 条

[1] STRUCTURE AND THERMAL-EXPANSION OF LIGE2 (PO4)3 [J].