| 放电辅助机械合金化快速合成Ti(C,N)粉体(英文) |
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| 引用本文： | 袁泉,郑勇,余海州.放电辅助机械合金化快速合成Ti(C,N)粉体(英文)[J].中国有色金属学会会刊,2011(7):1545-1549. |
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| 作者姓名： | 袁泉 郑勇 余海州 |
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| 作者单位： | 南京航空航天大学材料科学与技术学院;三峡大学机械与材料学院; |
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| 基金项目： | Project(50674057) supported by the National Natural Science Foundation of China |
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| 摘 要： | 利用机械合金化方法以Ti粉、石墨粉为原料,采用行星式球磨机在高纯氮气气氛下制备出Ti(C,N)粉体。研究放电处理对机械合金化1～7h试样的相变及显微组织的影响。实验结果表明:球磨1h后的样品在放电辅助下合成了Ti(C,N)粉体;而仅采用机械合金化方法,球磨7h不能合成Ti(C,N)粉体。放电处理产生的等离子体作用于粉体上,提高了原子间的扩散速度和Ti(C,N)在球磨粉体表面的形核速度,这是加速Ti(C,N)合成的主要原因。两种合成方法都遵循机械诱发自蔓延反应机制。
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| 关 键 词： | Ti(C N)粉 机械合金化 自蔓延反应合成 |
Rapid synthesis of Ti(C,N) powders by mechanical alloying and subsequent arc discharging |
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| YUAN Quan,ZHENG Yong,YU Hai-zhou, .College of Material Science , Technology,Nanjing University of Aeronautics , Astronautics,Nanjing ,China,.College of Mechanical , Materials Engineering,China Three Gorges University,Yichang.Rapid synthesis of Ti(C,N) powders by mechanical alloying and subsequent arc discharging[J].Transactions of Nonferrous Metals Society of China,2011(7):1545-1549. |
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| Authors: | YUAN Quan ZHENG Yong YU Hai-zhou College of Material Science Technology Nanjing University of Aeronautics Astronautics Nanjing China College of Mechanical Materials Engineering China Three Gorges University Yichang |
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| Affiliation: | YUAN Quan1,2,ZHENG Yong1,YU Hai-zhou1,2 1.College of Material Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China,2.College of Mechanical and Materials Engineering,China Three Gorges University,Yichang 443002 |
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| Abstract: | Ti(C,N) powders were synthesized by mechanical alloying (MA) from a mixture of pure titanium and graphite under a nitrogen atmosphere in a planetary mill.Effects of arc discharging on phase transformation and microstructure of MA powders milled for 1-7 h were explored.The results show that Ti(C,N) powders were prepared after mechanical milling for 1 h and subsequent arc discharge treatment,whereas the synthesis reaction did not occur in 7 h by mechanical milling alone.The ions produced during arc dischargin... |
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| Keywords: | Ti(C N) powders mechanical alloying self-propagating reactive synthesis |
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