THE DAMPING PROPERTIES OF DEALLOYED POROUS COPPER AND ITS PMMA COMPOSITE

被引：0
|
作者：
MIN, US
LI, JCM
机构：
[1] Department of Mechanical Engineering, Materials Science Program, University of Rochester, New York 14627-0133, Rochester
来源：
JOURNAL OF MATERIALS RESEARCH | 1994年 / 9卷 / 11期
基金：
美国国家科学基金会;
关键词：
Copper alloys;
D O I：
10.1557/JMR.1994.2884
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Incramute Cu-Mn alloys were dealloyed to remove Mn by selective electrolytic separation. The porous dealloyed specimens were compressed at 0.17-14 GPa, resulting in densities of 55-88% of the density of pure copper. Some porous copper specimens before compression were soaked in a mixture of monomer (MMA) and the initiator (AIBN), compressed, and then polymerized by heating. Young's moduli of both the dealloyed porous copper and its PMMA composite were found to decrease exponentially with porosity and volume fraction of PMMA, respectively. The apparent activation energy for damping of Cu-PMMA composite near the glass transition temperature of PMMA was found to increase with decreasing volume fraction of PMMA.
引用
收藏
页码：2884 / 2890
页数：7
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