Characteristics of zirconium hydride and deuteride

被引:65
作者
Yamanaka, S
Yamada, K
Kurosaki, K
Uno, M
Takeda, K
Anada, H
Matsuda, T
Kobayashi, S
机构
[1] Osaka Univ, Grad Sch Engn, Dept Nucl Engn, Suita, Osaka 565, Japan
[2] Sumitomo Met Ind Ltd, Amagasaki, Hyogo 660, Japan
[3] Nucl Fuel Ind Ltd, Kumatori, Osaka 59004, Japan
关键词
zirconium hydride; zirconium deuteride; isotope effect; lattice constant; XPS; molecular orbital method; elastic modulus; hardness; heat capacity; electrical resistivity; thermal conductivity;
D O I
10.1016/S0925-8388(01)01448-7
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 electrical and thermal properties of zirconium hydride and deuteride have been measured. The lattice parameter of deltaZrD(2-x) was smaller than that of deltaZrH(2-x), and the deuteride had higher elastic moduli than the hydride. The electrical and thermal conductivities of deltaZrH(2-x) were slightly different from pure Zr metal. The electronic structure of the zirconium hydride was found from XPS measurements to differ from those in the pure Zr metal, and there was a peak due to the Zr-H bond at 6.4 eV below Fermi energy in the XPS spectra. The density of states was estimated by a molecular orbital calculation, and the agreement between the XPS valence band measurements and the calculations was quite satisfactory. Some of the mechanical and thermal properties of zirconium hydride and deuteride were interpreted in terms of the results of the molecular orbital calculation, (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:99 / 104
页数:6
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