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Vol.52, No.10, 783 ~ 790, 2014
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| Title |
| Fabrication of porous Al-Cu sintered body and its permeability property |
| 김세훈 Se Hoon Kim , 노상호 Sang Ho Noh , 김상민 Sang Min Kim , 성시영 Si Young Sung , 진광진 Jin Kwang Jin , 김상민 Sang Min Kim |
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| Abstract |
| In this study, porous Al-Cu sintered body was fabricated without any space-holder material and its properties, such as porosity, compressive yield strength, shore hardness, and permeability, were evaluated. Al-Cu powder mixtures were prepared by low-energy ball milling. The ball-milled powders were granulated and classified into size with <150 μm and 150-300 μm, and then they were compacted and sintered at 600 ℃ for 1 h in a vacuum and N2 atmosphere. The porosities of sintered bodies could be controlled in range of 15-48% by controlling the compaction pressure. The compressive yield strength and hardness were increased with a decreasing porosity. As a result, the mechanical properties and permeability of the optimized porous body were superior to that of commercial one. |
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| Key Words |
| porous materials, sintering, mechanical properties, compression test, permeability |
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