Wetting of Alumina by Molten Aluminum and Aluminum-Copper Alloys(Welding Physics, Process & Instrument)
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概要
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The sessile drop technique has been conducted to measure the contact angle of molten aluminum and aluminum-copper alloys with alumina. The contact angle of aluminum alloys decreases with increasing time at temperatures above 1000℃. The process of wetting of the molten alloys is interpreted in terms of first order of kinetics, and may be dominated by the chemical reaction between molten aluminum and alumina etc. The work of adhesion of molten aluminum-copper alloys slightly increases from 1297 ergs/cm^2 for pure aluminum up to 1360 ergs/cm^2 for Al-30wt%Cu alloy, and markedly decreases to 517ergs/cm^2 for pure copper at 1100℃.
- 大阪大学の論文
著者
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Okamoto Ikuo
Osaka University
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NAKA Masaaki
Osaka University
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HIRONO Yutaka
Osaka University
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Hirono Y
Osaka Univ. Ibaraki Jpn
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