| 机械合金化制备铜碳合金增强铜-石墨复合材料 |
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| 引用本文： | 李灿民,王文芳,吴玉程.机械合金化制备铜碳合金增强铜-石墨复合材料[J].稀有金属与硬质合金,2011,39(4). |
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| 作者姓名： | 李灿民 王文芳 吴玉程 |
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| 作者单位： | 1. 合肥工业大学材料科学与工程学院,安徽合肥,230009
2. 合肥工业大学材料科学与工程学院,安徽合肥230009;安徽省有色金属材料与加工工程实验室,安徽合肥230009 |
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| 基金项目： | 安徽省自然科学基金，合肥市重点科技攻关项目 |
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| 摘 要： | 通过机械合金化制备Cu-5 ％C合金粉,并采用粉末冶金工艺制备铜碳合金增强铜-石墨复合材料即Cu-(Cu-5％C)-C,研究了制粉工艺和Cu-5％C合金粉对该复合材料显微组织及物理性能的影响.结果表明:随着球磨时间的增加,合金粉中铜的晶格常数先增大后减小,衍射峰强度不断降低,半高宽逐渐增大；球磨40 h后合金粉中的石墨衍射峰消失,再经400℃退火3h则球磨产生的次生相Cu2O衍射峰消失,且石墨峰未复现.当石墨含量为4％,合金碳含量不超过1.5％时,Cu-(Cu-5 ％C)-C复合材料试样的电导率均达61％ IACS以上；当合金碳含量为1.0％时,复合材料的屈服强度显著提高；当合金碳含量达到1.5％时,复合材料中的合金相严重分解,其增强效果大为减弱.
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| 关 键 词： | 铜-石墨复合材料 机械合金化 铜碳合金 颗粒增强 |
Preparation of Graphite-copper Composite by Mechanical Alloying |
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| LI Can-min,WANG Wen-fang,Wu Yu-cheng.Preparation of Graphite-copper Composite by Mechanical Alloying[J].Rare Metals and Cemented Carbides,2011,39(4). |
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| Authors: | LI Can-min WANG Wen-fang Wu Yu-cheng |
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| Affiliation: | LI Can-min1,2,WANG Wen-fang1,Wu Yu-cheng1,2(1.School of materials science and engineering,Hefei University of Technology,Hefei 230009,China,2.Laboratories of nonferrous metal material and processing engineering of Anhui province,China) |
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| Abstract: | Cu-5%C alloy powder is prepared by mechanical alloying and copper-carbon alloy enforced copper-graphite composite,Cu-(Cu-5%C)-C is prepared by powder metallurgy.Study is made of the power manufacturing technology and the influence of Cu-5wt%C alloy powder on the physical performance and microstructure of composites.The results show that with the ball milling time increases,the lattice constant of Cu goes up first then falls down,the diffraction peak strength of copper and graphite is decreased,while FWHM is... |
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| Keywords: | copper-graphite composite mechanical alloying copper-carbon alloy grain enhancing |
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