NATURE AND STABILITY OF TEM OBSERVED DEFECTS IN 14-MEV NEUTRON-IRRADIATED AU AND CU

被引：15

作者：

FUKUSHIMA, H ^{[1
]}

SHIMOMURA, Y ^{[1
]}

GUINAN, MW ^{[1
]}

机构：

[1] UNIV CALIF LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550

来源：

JOURNAL OF NUCLEAR MATERIALS | 1988年 / 155卷 / pt B期

关键词：

Copper and Alloys - Gold and Alloys--Defects - Microscopic Examination--Transmission Electron Microscopy - Neutrons - Radiation Damage;

D O I：

10.1016/0022-3115(88)90497-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cryo-transfer transmission electron microscopy and isochronal annealing experimens have been made on low temperature 14-Mev neutron-irradiated Au, Cu, Cu-0.1 at% Ge and Cu-0.2 at% Ni specimens. A two and a half dimensional stereo analysis has revealed the effects of specimen thickness and neutron dose on the formation of cascade defects. Interstitial-type defects disappear, and some of the submicroscopic vacancy-type defects grow and become visible at the stage-III temperature because of migrating vacancies. Both disappearance and appearance of interstitial-type defects are observed below stage-III, which may be due to beam effects in the electron microscope. Above stage-III, residual interstitial-type defects disappear by absorbing vacancies at the temperature at which vacancy-type defects thermally emit these vacancies and disappear.

引用

页码：1205 / 1210

页数：6

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