| 纳米Al2O3/Cu复合材料的制备及其摩擦学特性 |
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| 引用本文： | 周广宏.纳米Al2O3/Cu复合材料的制备及其摩擦学特性[J].煤炭学报,2009,34(2):262-266. |
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| 作者姓名： | 周广宏 |
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| 作者单位： | 淮阴工学院 机械工程系, 江苏 淮安,223003 |
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| 基金项目： | 江苏省高校自然科学基金，江苏省青蓝工程人才培养资助项目 |
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| 摘 要： | 首先采用化学镀铜工艺制备了Cu包覆纳米Al2O3复合粉体，分析了预处理工艺和化学镀工艺对复合粉体的组成及形貌的影响；再将均匀包覆的复合粉体与铜粉充分混合后，利用热压烧结成型工艺制备了纳米Al2O3弥散强化铜基复合材料，并对质量分数为2.5%的纳米Al2O3铜基复合材料的微观组织、摩擦磨损性能进行了研究.结果表明:通过镀前预处理工艺及对传统镀液配方的调整，成功地在纳米Al2O3颗粒表面包覆了厚度均匀可控的镀铜层，从而提高了纳米Al2O3颗粒与铜基体间的界面结合力，并实现了纳米Al2O3颗粒在复合材料基体中均匀分布.采用化学镀铜包覆技术制得的纳米Al2O3/Cu复合材料有较好的抗摩擦磨损性能，复合材料的摩擦因数较小，其相对耐磨性与钝铜相比提高了近1倍.
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| 关 键 词： | 纳米Al2O3 铜基复合材料 化学镀 热压烧结 磨损 |
| 收稿时间： | 2008-03-18 |
Fabrication of nano-Al_2O_3/Cu composite materials and its tribology |
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| ZHOU Guang-hong.Fabrication of nano-Al_2O_3/Cu composite materials and its tribology[J].Journal of China Coal Society,2009,34(2):262-266. |
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| Authors: | ZHOU Guang-hong |
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| Affiliation: | Department of Mechanical Engineering;Huaiyin Institute of Technology;Huai'an 223003;China |
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| Abstract: | Dealed with the preparation of Cu-coated nano-Al2O3 powder by electroless-plating process,the influence of pretreatment and electroless-plating process on composition and morphology of the composite powder was investigated.The composite bulk was fabricated by the method of hot press sintering after the composite powder mixed with the copper powder uniformly.Moreover,the microstructure and tribology properties of the composite materials reinforced with 2.5% nano-Al2O3 was observed.The results show that by op... |
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| Keywords: | nano-Al2O3 copper matrix composite electroless-plating hot pressing wear |
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