Dissolution rate of copper in lead and aluminum melts

Katsumi Mori, Toshiro Kitahara, Kunihiko Nakashima

研究成果: ジャーナルへの寄稿記事

抄録

In order to clarify the kinetic behavior of dissolution of solid copper into liquid lead and aluminum, the change in radius of cylindrical copper specimen with time was examined under static or rotating condition in the temperature range from 500 to 900 °C. It was found that the dissolution rate increases with increasing rotating speed. This fact supports that the diffusion of copper in a liquid metal is a rate-limiting step. As a result of kinetic analysis based on the film theory, the following non-dimensional correlation was obtained for each flow condition. Under rotating condition in lead melt. JD(= k/U·Sc2/3) = 0.014·Re-0.13 Under static condition in both melts. Sh(= k/D) = 0.015·(Grm·Sc)0.44 Apparent activation energies for dissolution were calculated to be about 10 kJ/mol at 200 rpm, and 35-40 kJ/mol for static condition. These values are comparable to those estimated from the temperature dependence of physical properties of liquid metals.

元の言語英語
ページ(範囲)40-45
ページ数6
ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
80
発行部数4
出版物ステータス出版済み - 4 1994

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Aluminum
Copper
dissolving
Dissolution
Lead
aluminum
Liquid metals
copper
liquid metals
Kinetics
Activation energy
Physical properties
kinetics
Temperature
Liquids
physical properties
activation energy
temperature dependence
radii
liquids

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

これを引用

Dissolution rate of copper in lead and aluminum melts. / Mori, Katsumi; Kitahara, Toshiro; Nakashima, Kunihiko.

:: Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, 巻 80, 番号 4, 04.1994, p. 40-45.

研究成果: ジャーナルへの寄稿記事

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