CRYSTALLINE-STRUCTURE OF THE STRONTIUM NIOBATES SR4NB2O9 AND SR5NB4O15

被引：21
|
作者：
WEIDEN, M
GRAUEL, A
NORWIG, J
HORN, S
STEGLICH, F
机构：
[1] TH DARMSTADT,D-64287 DARMSTADT,GERMANY
[2] UNIV AUGSBURG,INST PHYS,D-86159 AUGSBURG,GERMANY
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1995年 / 218卷 / 01期
关键词：
STRONTIUM NIOBATES; SOLID STATE REACTIONS; X-RAY POWDER DIFFRACTION;
D O I：
10.1016/0925-8388(94)01461-2
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The strontium niobate compounds Sr4Nb2O9 and Sr5Nb4O15 were prepared by solid state reactions and studied by high-resolution X-ray powder diffraction measurements. The structures of the two systems Sr4Nb4O15 and Sr5Nb4O15 were obtained by Rietveld analysis, indicating triclinic and monoclinic unit cell parameters, respectively. Both structures reveal a layering of Sr-O planes. The Nb ions are located in octahedral holes between the Sr-O layers.
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收藏
页码：13 / 16
页数：4
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