RIETVELD ANALYSIS OF LIB13 WITH BETA-RHOMBOHEDRAL BORON STRUCTURE

被引：34

作者：

KOBAYASHI, M ^{[1
]}

HIGASHI, I ^{[1
]}

MATSUDA, H ^{[1
]}

KIMURA, K ^{[1
]}

机构：

[1] UNIV TOKYO,DEPT MAT SCI,BUNKYO KU,TOKYO 113,JAPAN

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1995年 / 221卷

关键词：

RIETVELD ANALYSIS; LITHIUM; BORON-RICH SOLIDS;

D O I：

10.1016/0925-8388(94)01438-8

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：

A lithium-containing boron-rich solid was prepared from lithium and powdery beta-rhombohedral boron in a tantalum boat which was enclosed in a quartz tube heated at 1000 degrees C. The boron framework of the Li-B reaction product has the same structure as the framework of beta-rhombohedral boron. The lattice constants are alpha(hex)=10.9654(9) Angstrom and c(hex)=24.0495(23) Angstrom (space group R $($) over bar$$ 3m, no. 166). The lithium atoms occupy the D and E holes in the boron framework with full occupancy. The occupancies of B(13) and B(16) sites are 0.64(3) and 0.10(3) respectively. The chemical composition obtained by Rietveld analysis is LiB12.9(1).

引用

页码：120 / 124

页数：5

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