| (石墨+纳米SiC_p)/Cu基复合材料的制备及性能研究 |
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| 引用本文： | 罗阳,王桂松.(石墨+纳米SiC_p)/Cu基复合材料的制备及性能研究[J].宇航学报,2012,33(9):1322-1326. |
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| 作者姓名： | 罗阳 王桂松 |
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| 作者单位： | 哈尔滨工业大学材料科学与工程学院,哈尔滨,150001 |
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| 摘 要： | 采用粉末冶金法制备(Gr+纳米SiCp)/Cu基复合材料,研究了不同球磨时间和球磨转速对球磨效果的影响,得到最佳球磨时间和速度为8小时和300r/min。球磨后在1143K和200MPa下采用热压烧结法处理2h,然后在1143K下进行热挤压,挤压比16∶1。采用SEM和TEM研究了不同石墨含量烧结态和挤压态复合材料的微观组织,测试了不同石墨含量的热挤压态复合材料的抗压强度。
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| 关 键 词： | (Gr+纳米SiCp)/Cu复合材料 力学性能 自润滑 微观组织 |
The Synthesis and Mechanical Property of the(Graphite + Nano-SiCp)/Cu Composites |
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| LUO Yang
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WANG Gui-song.The Synthesis and Mechanical Property of the(Graphite + Nano-SiCp)/Cu Composites[J].Journal of Astronautics,2012,33(9):1322-1326. |
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| Authors: | LUO Yang WANG Gui-song |
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| Institution: | (School of Material Science and Engineering,Harbin Institue of Technology,Harbin 150001,China) |
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| Abstract: | Metal matrix composites(MMCs) of(Gr+Nano-SiCp)/Cu can be prepared directly by powder metallurgy.The optimized time and the speed of ball milling are 8 hours and 300r/min.After ball milling,the mixed powder can be formed by hot isostatic pressing(HIP) at about 1143K and 200MPa for 2 hours and then be extruded at 1143K with the squeeze ratio 16 ∶ 1.The Microstructure of the material sintered and extruded are observed by using SEM and TEM.The bending strengths of MMCs with different content of graphite and nano-SiCp are tested. |
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| Keywords: | (Gr+Nano-SiCp)/Cu composites Mechanical property Self-lubricant Microstructure |
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