EFFECT OF DOSE ON THE EVOLUTION OF CAVITIES IN 500-KEV HE-4(+)-ION IRRADIATED NICKEL

被引:27
作者
FENSKE, G [1 ]
DAS, SK [1 ]
KAMINSKY, M [1 ]
机构
[1] UNIV ILLINOIS,URBANA,IL 61801
关键词
D O I
10.1016/0022-3115(79)90343-X
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Transmission electron microscopy has been used to investigate the effect of total dose on the depth distribution of cavities (voids or bubbles) in nickel irradiated at 500°C with 500-keV 4He+ ions. A transverse sectioning technique, which allows one to obtain the entire depth distribution of cavities and of damage from a single specimen, was utilized. The size, number density and volume fraction of bubbles or voids were measured from the micrographs taken from samples sectioned parallel to the direction of the incident beam. The results for the dose range studied (2 × 1019 to 1 × 1021ions/m2) show that the average cavity diameter, number density, and the volume fraction (i.e. swelling) increases with increasing dose. The peak in the swelling distribution occurs at depths 8 to 15% deeper than the peak in the calculated projected range profile. © 1979.
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页码:707 / 711
页数:5
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