The ternary system neodymium-cobalt-boron

被引：12

作者：

Chen, Y ^{[1
]}

Liang, JK

Liu, QL

Chen, XL

Huang, F

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China

[3] Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1999年 / 288卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Nd-Co-B; crystal structure; phase diagram;

D O I：

10.1016/S0925-8388(99)00082-1

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 isothermal section at 873 K in Go-rich ternary Nd-Co-B system was determined by means of X-ray diffraction. In this range, 11 ternary borides were observed: Nd3Co13B2, NdCo4B, Nd5Co19B6, Nd3Co11B4, Nd2Co7B3, Nd2Co14B, NdCo12B6, NdCo4B4, Nd2Co5B3, NdCo2B2, Nd2Co5B2. Among the 11 ternary compounds, two compounds had not been reported previously: hexagonal Nd3Co13B2 with a = 5.0722(4) Angstrom, c = 10.7840(5) Angstrom and hexagonal Nd5Co19B6 with a = 5.1328(3) Angstrom, c = 16.6519(5) . The first five borides are members of the homologous series Rm + nCo5m + 3nB2n formed by alternative stacking in layers of RCo5 with n layers of RCo3B2 along the c-axis. The Nd2Co5B2 compound belongs to the Rm + nCo2m +3nB2n family which is based on the MgZn2-type and the CeCo3B2-type structures. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：170 / 172

页数：3

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