IS THE CONCEPT OF BORON ICOSAHEDRA IN BORON-CARBIDE CORRECT

被引：11

作者：

WILL, G

KIRFEL, A

GUPTA, A

机构：

[1] Mineralogisches Institut der Universität Bonn

来源：

JOURNAL OF THE LESS-COMMON METALS | 1979年 / 67卷 / 01期

关键词：

D O I：

10.1016/0022-5088(79)90069-9

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 crystal structure of boron carbide B13C2 is generally depicted as consisting of B12 icosahedra connected by C-B-C chains. In this paper we propose a different description of the same structure based on an infinite network structure with some associations to the diamond lattice. This new concept is based on the observed differences in the strengths of the bonds in the structure and is corroborated by the measured deformation densities calculated from precise X-ray diffraction experiments. © 1979.

引用

页码：13 / 18

页数：6

共 8 条

[1] THE ELECTRONIC STRUCTURE OF AN ICOSAHEDRON OF BORON ATOMS [J].

LONGUETHIGGINS, HC ;

ROBERTS, MD .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1955, 230 (1180) :110-119

[2]

NASLAIN R, UNPUBLISHED

[3]

Perkins P. G., 1977, Boron and refractory borides, P31

[4] X-RAY-DIFFRACTION ANALYSIS OF BORON-CARBIDE, B13C2 [J].

WILL, G ;

KOSSOBUTZKI, KH .

JOURNAL OF THE LESS-COMMON METALS, 1976, 47 (JUN) :43-48

[5] ELECTRON-DENSITY AND BONDING IN B13C2 [J].

WILL, G ;

KIRFEL, A ;

GUPTA, A ;

AMBERGER, E .

JOURNAL OF THE LESS-COMMON METALS, 1979, 67 (01) :19-29

[6] X-RAY-DIFFRACTION ANALYSIS OF B50C2 AND B50N2 CRYSTALLIZING IN TETRAGONAL BORON LATTICE [J].

WILL, G ;

KOSSOBUTZKI, KH .

JOURNAL OF THE LESS-COMMON METALS, 1976, 47 (JUN) :33-38

[7] EXISTENCE OF TETRAGONAL BORON AND CRYSTAL-STRUCTURES OF B50C2 AND B50N2 - AN X-RAY-DIFFRACTION ANALYSIS [J].

WILL, G ;

KOSSOBUTZKI, KH .

ZEITSCHRIFT FUR KRISTALLOGRAPHIE, 1975, 142 (5-6) :384-397

[8] X-RAY STRUCTURE-ANALYSIS OF BORON-CARBIDE, B13C2 [J].

WILL, G ;

KOSSOBUTZKI, KH .

JOURNAL OF THE LESS-COMMON METALS, 1976, 44 (JAN) :87-97

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