Inelastic neutron scattering study of hydrogen in nanocrystalline Pd

被引：12
|
作者：
Stuhr, U
Wipf, H
Udovic, TJ
Weissmuller, J
Gleiter, H
机构：
[1] HAHN MEITNER INST BERLIN GMBH,BENSC NI,D-14109 BERLIN,GERMANY
[2] NIST,GAITHERSBURG,MD 20899
[3] INST SAARLANDES,INST WERKSTOFFWISSENSCH,D-66123 SAARBRUCKEN,GERMANY
来源：
NANOSTRUCTURED MATERIALS | 1995年 / 6卷 / 5-8期
关键词：
D O I：
10.1016/0965-9773(95)00119-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The vibrational excitations and the position of hydrogen, in nanocrystalline Pd was investigated by neutron spectroscopy. This study was restricted to low hydrogen concentrations (less than or equal to 4.8 at%) where no hydrogen, precipitation was observed at room temperature. The experiments show that most of the hydrogen is incorporated in the grain boundaries and at the inner surfaces of the grains. Surface modes of the hydrogen can be identified. Compared to coarse-grained Pd, no change in the hydrogen solubility was found for the lattice regions of the nanocrystalline Pd.
引用
收藏
页码：555 / 558
页数：4
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