Retention and re-emission of hydrogen in beryllium studied by the ERD technique

被引:13
作者
Tsuchiya, B
Morita, K
机构
[1] Department of Crystalline Materials Science, School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-01, Furo-cho
关键词
D O I
10.1016/S0022-3115(96)00116-X
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Isochronal and isothermal re-emissions of D atoms retained in Be by room temperature implantation with 3 keV D-2+ ions up to saturation have been studied by combined use of elastic recoil detection (ERD) and Rutherford backscattering (RBS) techniques. In the isochronal re-emission curves, two re-emission stages are observed, a stage at 90 degrees C and a broad stage at 300 +/- 100 degrees C. It is found from the change in the ERD spectra that the former stage corresponds to re-emission of D retained around the projected range in the bulk and the latter broad stage is composed of two stages, a lower temperature one corresponds to re-emission from the oxidized surface layers and a higher temperature one from the bulk. From the analysis of the isothermal re-emission curves measured at various temperatures, the activation energies at the three re-emission stages are determined and the trapping states for the three stages are discussed.
引用
收藏
页码:898 / 901
页数:4
相关论文
共 13 条
[1]   DEUTERIUM PERMEATION AND DIFFUSION IN HIGH-PURITY BERYLLIUM [J].
ABRAMOV, E ;
RIEHM, MP ;
THOMPSON, DA ;
SMELTZER, WW .
JOURNAL OF NUCLEAR MATERIALS, 1990, 175 (1-2) :90-95
[2]   HYDROGEN TRANSPORT BEHAVIOR OF BERYLLIUM [J].
ANDERL, RA ;
HANKINS, MR ;
LONGHURST, GR ;
PAWELKO, RJ ;
MACAULAYNEWCOMBE, RG .
JOURNAL OF NUCLEAR MATERIALS, 1992, 196 :986-991
[3]  
Andersen H. H., 1977, HYDROGEN STOPPING PO
[4]   T DIFFUSION IN AL2O3 AND BEO/D BEO [J].
FOWLER, JD ;
CHANDRA, D ;
ELLEMAN, TS ;
PAYNE, AW ;
VERGHESE, K .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1977, 60 (3-4) :155-161
[5]  
KAWAMURA H, 1990, J NUCL MATER, V176, P66
[6]  
LIN MV, 1979, J NUCL MATER, V79, P267
[7]  
MACAULAYNEWCOMB.RG, 1991, FUSION ENG DES, V8, P419
[8]  
MIZUSAWA S, 1996, IN PRESS J NUCL MAT
[9]  
MYGERS SM, 1989, J NUCL MATER, V165, P9
[10]   TRITIUM SOLUBILITY IN HIGH-PURITY BERYLLIUM [J].
SWANSIGER, WA .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1986, 4 (03) :1216-1217