| Preparation and characterization of porous magnesium materials |
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| 作者姓名： | 刘希琴 刘子利 张晓红 丰俊东 俞挞汐 |
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| 作者单位： | College of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| 摘 要： |
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| 关 键 词： | 镁合金 多孔渗水 空间材料 微观结构 机械性能 |
| 收稿时间： | 2006-07-28 |
| 修稿时间： | 2006-09-15 |
Preparation and characterization of porous magnesium materials |
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| LIU Xi-qin, LIU Zi-li, ZHANG Xiao-hong, FENG Jun-dong, YU Ta-xi.Preparation and characterization of porous magnesium materials[J].Transactions of Nonferrous Metals Society of China,2006,16(A03):1859-1863. |
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| Authors: | LIU Xi-qin LIU Zi-li ZHANG Xiao-hong FENG Jun-dong YU Ta-xi |
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| Abstract: | The proper spacer material and the preparation technology for biological compatible porous magnesium materials were explored by the powder metallurgy method, and microstructures, porosity and mechanical properties of sintered porous magnesium were investigated. The results show that compared with spacer materials of NH4CO3, NH3Cl and carbamide, NI-I4CO3 is the best one for preparation of sintered porous magnesium, and the worst one is NH3Cl. The isolated blind pores are formed mainly by the particle interval of the magnesium powders. Adding spacer material favors the formation of open pores, while has little contribution to the formation of blind pores. The overall porosity and porosity of open pore of the sintered porous magnesium increase with the increase of added spacer material, while decrease with the increase of the molding stress. The mechanical properties of sintered porous magnesium increase with decreasing addition of spacer material and increasing molding stress. |
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| Keywords: | porous magnesium powder metallurgy spacer material microstructure porosity mechanical properties |
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