| 直流氢电弧等离子体蒸发法制备纳米Cu粉 |
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| 引用本文： | 安少华,张振忠,路成杰,周剑秋. 直流氢电弧等离子体蒸发法制备纳米Cu粉[J]. 特种铸造及有色合金, 2007, 27(6): 488-490 |
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| 作者姓名： | 安少华 张振忠 路成杰 周剑秋 |
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| 作者单位： | 南京工业大学材料科学与工程学院 |
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| 基金项目： | 国家自然科学基金;江苏省高校自然科学基金 |
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| 摘 要： | 采用99.99%的高纯Cu,通过自行设计的直流电弧等离子体蒸发设备实现了高产率纳米Cu粉的制备.系统研究了电流、氢氩比、充气压力3个工艺参数对纳米Cu粉产率及粒度的影响.利用X射线衍射（XRD）、透射电子显微镜（TEM）和选区电子衍射（ED）以及Simple PCI软件对试样的成分、形貌、晶体结构和粒径分布进行了分析.结果表明,电流和氢氩比（H2/Ar）分别是对粉体产率和平均粒径影响的显著性因素;所制备的纳米铜粉为多晶结构,平均粒径在29～116 nm范围内;在试验参数相近的情况下,产率比同类研究结果提高了26.65倍.
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| 关 键 词： | 直流电弧等离子体蒸发 纳米Cu粉 制备 |
| 文章编号： | 1001-2249（2007）06-0488-03 |
| 修稿时间： | 2007-01-26 |
Preparation of Nanometer-scale Copper Powders by Hydrogen DC (Direct Current) Arc Plasma Evaporation |
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| An Shaohua,Zhang Zhenzhong,Lu Chengjie,Zhou Jianqiu. Preparation of Nanometer-scale Copper Powders by Hydrogen DC (Direct Current) Arc Plasma Evaporation[J]. Special Casting & Nonferrous Alloys, 2007, 27(6): 488-490 |
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| Authors: | An Shaohua Zhang Zhenzhong Lu Chengjie Zhou Jianqiu |
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| Abstract: | We have developed a hydrogen DC arc plasma evaporation apparatus to prepare nanometer-scale copper powder with 99.99% pure copper.The effects of three processing parameters,including current,hydrogen/Ar ratio and air pressure,on the product rate and granularity of copper powder have been analyzed systematically.The composition,morphology,crystal structure and particle distribution in the copper powders have been analyzed by XRD,TEM and ED as well as Simple PCI software.The results show that the dominant factors influencing the product rate and average particle diameters are current and H2/Ar ratio.The prepared nanometer-scale copper powder is characterized by multi-crystal structure with the average diameters in the range of 29 to 116 nm.The product rate is increased by 27.65 time compared with the results by other investigation results at the same parameters. |
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| Keywords: | DC Arc Plasma Evaporation Nanometer-scale Copper Powder Preparation |
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