HYDROGEN TRAPPING AT RADIATION DEFECTS IN SODIUM-IMPLANTED IRON, NICKEL AND MOLYBDENUM

被引：15

作者：

KEHREL, A

KEINONEN, J

HAUSSALO, P

LIEB, KP

UHRMACHER, M

机构：

[1] UNIV HELSINKI,ACCELERATOR LAB,SF-00550 HELSINKI,FINLAND

[2] UNIV GOTTINGEN,INST PHYS 2,W-3400 GOTTINGEN,GERMANY

来源：

RADIATION EFFECTS AND DEFECTS IN SOLIDS | 1991年 / 118卷 / 04期

基金：

芬兰科学院;

关键词：

IMPLANTATION OF METALS; RADIATION DAMAGE; DEFECT FORMATION; HYDROGEN TRAPPING; ANNEALING PROCESSES;

D O I：

10.1080/10420159108220757

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：

Trapping of ion-irradiation induced defects has been studied in Na-implanted polycrystalline Fe, Ni, and Mo. The samples were implanted at room temperature with 250-keV 23Na+ ions to a fluence of 1.5 x 1017cm-2. The Na concentration distributions were characterized using nuclear reaction via the resonant reaction 23Na(p, γ)24Mg. The trapping and detrapping of Na-implantation and proton-irradiation induced defects were observed via their decoration with hydrogen. The H distributions were measured with the nuclear resonance reaction 1 H(15N, αγ)12C. The formation of defect-hydrogen complexes is interpreted by vacancy migration to Na followed by trapping of H from the bulk. To elucidate the mechanisms, the Na-doped samples were also post-irradiated with 100-keV protons and 6.4-MeV 15N2+ ions, and isochronally annealed at 300–970 K. Copyright © 1991, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：297 / 307

页数：11

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