The Effects of Repeated Electron Irradiation for the Formation of Interstitial Loops in Pure Aluminum

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概要

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• In an electron microscope, pure aluminum foil was irradiated at 120℃ with 200 keV electrons to form interstitial loops and then heated at 200℃ to anneal them out. When such a process was repeated many times on the same position of a specimen, the number density of interstitial loops (I-loops) decreased with increasing number of repeats. In a specimen whose number density of I-loops had already decreased greatly by repeated irradiation at l20℃, the relation between the number density of I-loops and the irradiation temperature was examined from -160℃ to 120℃. Above 0℃, the number density of I-loops was smaller than that of a freshly irradiated specimen. Below 0℃, it was the same as that of a freshly irradiated specimen. These results are interpreted as meaning that an I-loop nucleates at an impurity cluster above 0℃, whereas it does so at a single impurity below 0℃.

• 社団法人応用物理学会の論文
• 1980-05-05

著者

• Shimomura Yoshiharu

  Applied Physics And Chemistry Faculty Of Engineering Hiroshima University

• Tanaka Kunihiro

  Applied Physics And Chemistry Faculty Of Engineering Hiroshima University

• TANAKA Kunihiro

  Applied Physics and Chemistry, Faculty of Engineering, Hiroshima University

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• The Effects of Repeated Electron Irradiation for the Formation of Interstitial Loops in Pure Aluminum
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