Effect of Pressure on Dislocation Damping in Alkali Halide Crystals
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概要
- 論文の詳細を見る
Attenuation of longitudinal pulsed ultrasound at frequencies between 27 and99 MHz has been measured in Lit and Nail crystals under hydrostatic oil pressureup to 3500 kg/cm" at room temperature. Specimens used were in two differentstates : deformed to introduce dislocations, and irradiated by 7 rays to eliminatethe effect of dislocation vibration. From the pressure dependences of soundattenuation in the two states, the pressure dependence of the damping constantfor dislocation motion was determined by an analysis based on the Granato-Liicke theory of overdamped resonance of dislocations. The results for LiFand Nail crystals of high purity were well understood by considering the non-linearity mechanism or the flttttering mechanism of dislocation damping. For animpure LiF crystal, the pressure dependence of damping constant was found tobe very different from that for the pure crystal.
- 社団法人日本物理学会の論文
- 1985-07-15
著者
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紀 隆雄
広島国際学院大学工学部
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Hiki Y
Faculty Of Science Tokyo Institute Of Technology Tokyo
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Hiki Yosio
Faculty Of Engineering Ibaraki University
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KOGURE Yoshiaki
Faculty of Science,Tokyo Institute of Technology
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Kosugi Toshio
Faculty Of Science Tokyo Institute Of Technology:faculty Of Science Hiroshima University
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KOGURE Yoshiaki
Teikyo University of Science E Technology
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Kogure Y
Teikyo Univ. Sci. & Technol. Yamanashi Jpn
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Kogure Yoshiaki
Faculty Of Science Tokyo Institute Of Technology
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Kogure Yoshiaki
Faculty Of Science And Engineering Teikyo University Of Science & Technology
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HIKI Yosio
Faculty of Science, Tokyo Institute of Technology, Tokyo
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Hiki Yosio
Faculty of Engineering, Ibaraki University
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