Ion beam mixing and liquid interdiffusion
作者:
M. Nastasi,
J.W. Mayer,
期刊:
Radiation Effects and Defects in Solids
(Taylor Available online 1994)
卷期:
Volume 130-131,
issue 1
页码: 367-385
ISSN:1042-0150
年代: 1994
DOI:10.1080/10420159408219797
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A characteristic of ion mixing in the low temperature portion of the thermally assisted ion mixing regime is that the activation energy obtained from most experiments is in the range of 0.1 to 0.3 eV. These values are typically a factor of 4 to 10 lower than the vacancy migration energy of most elements. This discrepancy is maintained even when the ion mixing data is contrasted to the more comparable data from concentrated homogeneous alloys. It appears that an explanation of the ion mixing activation energy is not possible by radiation enhanced diffusion (RED) where, at the low temperature end of RED, defect annihilation is by direct vacancy-interstitial recombination and the predicted activation energy is Q = 0.5 EMv
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