A Mossbauer effect and X-ray diffraction investigation of Ti-Sn intermetallic compounds: I. Equilibrium phases

被引:28
|
作者
O'Brien, JW
Dunlap, RA [1 ]
Dahn, JR
机构
[1] Dalhousie Univ, Dept Phys, Halifax, NS B3H 3J5, Canada
[2] Dalhousie Univ, Dept Chem, Halifax, NS B3H 3J5, Canada
关键词
intermetallics; electrode materials; crystal structure; Mossbauer spectroscopy; X-ray diffraction;
D O I
10.1016/S0925-8388(02)01304-X
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 thorough X-ray diffraction and Mossbauer effect investigation of Ti3Sn, Ti2Sn, Ti5Sn3, Ti6Sn5, and Ti2Sn3 phases in the Ti-Sn binary system has been made. The compounds were verified to have the same crystal structures as those reported in the literature. This work presents the first reported Sn-119 Mossbauer effect spectroscopy data on Ti3Sn, Ti2Sn, Ti5Sn3 and Ti6Sn5. The room temperature center shifts (relative to CaSnO3) and quadrupole splittings have been determined for each of the phases by fitting model spectra to the observed data. These results are important for the interpretation of Mossbauer effect measurements on high capacity Sn-based electrode materials for Li-ion batteries. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:60 / 64
页数:5
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