INTERACTION OF HYDROGEN ISOTOPES WITH METALS - DEUTERIUM TRAPPED AT LATTICE-DEFECTS IN PALLADIUM

被引：18
作者：
BESENBACHER, F
NIELSEN, BB
NORSKOV, JK
MYERS, SM
NORDLANDER, P
机构：
[1] Institute of Physics, University of Aarhus, Aarhus C
[2] Laboratory of Applied Physics, Technical University of Denmark, Lyngby
[3] Sandia National Laboratories, Albuquerque, 87185, New Mexico
[4] Department of Physics and Astronomy, Rutgers University, Piscataway, 08855-0849, New Jersey
来源：
JOURNAL OF FUSION ENERGY | 1990年 / 9卷 / 03期
关键词：
TRAPPING ENTHALPIES; LATTICE LOCATION; HYDROGEN ISOTOPES; METALS; DEFECTS; VACANCIES; VOIDS; MULTIPLE OCCUPANCY OF VACANCIES;
D O I：
10.1007/BF01059239
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
From an interplay between theory based on the effective-medium scheme and experiments, an extremely simple picture has evolved which is capable of describing a vast number of experimental quantities related to interaction of hydrogen with metals, especially the trapping of hydrogen at defects. It is shown that the trap strengths are determined mainly by the interstitial electron density, and any open structures in the lattice leads to a trap, with the vacancies and voids being the strongest traps. It is also found theoretically and experimentally that up to six hydrogen atoms can be accomodated in a vacancy, and the change in trap strengths with occupancy has been determined. Recent results for the trapping of deuterium to defects in Pd are discussed.
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收藏
页码：257 / 261
页数：5
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