SELF-DIFFUSION IN LIQUID METALS
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概要
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The relaxation model previously proposed by the authors was applied to the self-diffusion process in liquid metals. A Lennard-Jones type pair potential function was used to evaluate the term related to the frequency of the oscillatory motion in liquids. The self-diffusivity of liquid metals can be calculated simply from the melting temperature, Tm, and the liquid density, ρ, with the use of the final formulae:D=0.135z(kT)1/2m-1/6ρ0-1/3(T/Tm)1/2(1-ρ/ρ0)=0.555(kT)1/2m-1/6/ρm-1/3(T/Tm)1/2(1-ρ/1.068ρm)The agreement of calculated values with observed ones is satisfactory, especially for temperature dependency. The physical meaning of the model parameters, z and ρo is also discussed.
- 公益社団法人 化学工学会の論文
著者
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Harada Makoto
Institute Of Advanced Energy Kyoto University
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EGUCHI Wataru
Institute of Atomic Energy, Kyoto University
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TANIGAKI MASATAKA
Institute of Atomic Energy, Kyoto University
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TOYOTA YUICHI
Institute of Atomic Energy, Kyoto University
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