| Title |
Fabrication of porous Al-Cu sintered body and its permeability property |
| Authors |
김세훈(Se Hoon Kim); 노상호(Sang Ho Noh); 김상민(Sang Min Kim); 성시영(Si Young Sung); 진광진(Jin Kwang Jin); 김상민(Sang Min Kim) |
| DOI |
https://doi.org/10.3365/KJMM.2014.52.10.783 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
porous materials; sintering; mechanical properties; compression test; permeability |
| 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. |