DIFFUSION OF HYDROGEN IN DISORDERED NB1-YVY ALLOYS

被引：1
|
作者：
BROUWER, RC [1 ]
GRIESSEN, R [1 ]
机构：
[1] FREE UNIV AMSTERDAM,NAT KUNDIG LAB,1081 HV AMSTERDAM,NETHERLANDS
来源：
EUROPHYSICS LETTERS | 1991年 / 14卷 / 08期
关键词：
DIFFUSION; MIGRATION; AND DISPLACEMENT OF IMPURITIES; IMPURITY CONCENTRATION; DISTRIBUTION; AND GRADIENTS;
D O I：
10.1209/0295-5075/14/8/014
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Macroscopic diffusion coefficients D* have been measured as a function of temperature ((273 divided-by 550)K) in various Nb(1-y)V(y) alloys and at 300 K as a function of hydrogen concentration (c = 0.001 divided-by 0.033) in Nb0.90V0.10. Model calculations, using site-dependent (activation) energies show excellent agreement between experimental and calculated macroscopic diffusion coefficients. The highly nonlinear concentration dependence predicted by the model in Nb0.90V0.10 at 300 K, and not observed before in any crystalline alloy, is confirmed experimentally.
引用
收藏
页码：803 / 807
页数：5
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