Fabrication and Characteristics of Hypereutectic Prealloyed Al-Si Powders by Gas Atomization Process |
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| Journal | Key Engineering Materials (Volumes 317 - 318) |
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| Volume | The Science of Engineering Ceramics III |
| Edited by | T. Ohji, T. Sekino and K. Niihara |
| Pages | 61-64 |
| DOI | 10.4028/www.scientific.net/KEM.317-318.61 |
| Citation | Yong Jin Kim et al., 2006, Key Engineering Materials, 317-318, 61 |
| Online since | August, 2006 |
| Authors | Yong Jin Kim, L.F. Wang, In Sang Chung, Jin Chun Kim, Tae Suk Jang |
| Keywords | Compacting Ability, Gas Atomization, Hot-Pressing, Hypereutectic Al-Si |
| Abstract | The hypereutectic prealloyed Al-Si powders were prepared by gas atomization process. The microstructure and compacting ability of the atomized Al-Si powders were investigated. With increasing the gas pressure of the atomization, the average powder size and oxygen content were decreased. The size of primary eutectic Si particles in the as-atomized powders was about 8~10. As-atomized powders were hot-pressed into a cylindrical shape. Relative density of the hot-pressed samples was achieved about 96~99 % of theoretical density. Some properties of the samples were evaluated in this paper. |
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