LIQUID PHASE MIGRATION DURING SINTERING OF LOW-POROSITY Cu-Pb MATERIALS.

被引：0
|
作者：
Skorokhod, V.V. [1 ]
Solonin, S.M. [1 ]
Epifantseva, T.A. [1 ]
Savyak, M.P. [1 ]
机构：
[1] Acad of Sciences of the Ukrainian, SSR, USSR, Acad of Sciences of the Ukrainian SSR, USSR
来源：
Soviet powder metallurgy and metal ceramics | 1985年 / 24卷 / 10期
关键词：
ANTIFRICTION MATERIALS - LEAD SWEATING - LIQUID PHASE MIGRATION - SINTERING - WETTING;
D O I：
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学科分类号：
摘要：
During sintering of hard-pressed components from copper and lead powder mixtures, sweating of lead occurs at the moment of melting under the action of expelling capillary force. Lead oxides hinder wetting. The exuded lead reinfiltration process begins after removal of led oxides and changes in the wetting behavior. Addition of chromium intensifies the reverse suction of the liquid phase. By sintering in argon it proceeds faster than during sintering in hydrogen due to better wetting of copper with molten lead. Sintering in argon obtains samples with little porosity.
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页码：765 / 768
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