| 球磨工艺对B_4C-Al复合粉末性能的影响 |
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| 引用本文： | 沈春雷,石建敏,张玲,龙兴贵.球磨工艺对B_4C-Al复合粉末性能的影响[J].功能材料,2011(Z2). |
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| 作者姓名： | 沈春雷 石建敏 张玲 龙兴贵 |
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| 作者单位： | 中国工程物理研究院核物理与化学研究所; |
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| 基金项目： | 中国工程物理研究院军民两用重大资助项目(JMZD200903) |
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| 摘 要： | 利用高能球磨干混的方法制备B4C-Al复合粉末,研究球磨过程中转速、球磨时间对粉末粒度、B4C颗粒均匀性及界面结合的影响。结果表明,球磨转速和球磨时间是影响增强体颗粒分布均匀性以及与基体粉末界面结合的主要因素,存在一个最佳球磨转速和球磨时间使增强体颗粒分布均匀且与基体粉末的界面结合最佳。低转速球磨6h和中转速球磨3h时,增强体颗粒以偏聚的形式分布于基体粉末间隙之间,界面结合率很低。中转速球磨6h时,增强体颗粒均匀地分布于基体材料中,界面结合率较高。中转速球磨12h和高转速球磨6h时,增强体颗粒分布较均匀,界面结合率很高,但是容易形成焊合。
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| 关 键 词： | B4C-Al复合材料 高能球磨 粒度分布 界面结合 均匀性 |
Effect of ball milling technics on B_4C-Al composite performance |
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| SHEN Chun-lei,SHI Jian-min,ZHANG Ling,LONG Xing-gui.Effect of ball milling technics on B_4C-Al composite performance[J].Journal of Functional Materials,2011(Z2). |
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| Authors: | SHEN Chun-lei SHI Jian-min ZHANG Ling LONG Xing-gui |
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| Affiliation: | SHEN Chun-lei,SHI Jian-min,ZHANG Ling,LONG Xing-gui (Institute of Physical and Chemistry,CAEP,Mianyang 621900,China) |
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| Abstract: | B4C-Al composites were fabricated by high energy milling powder metallurgy technique.The effect of velocity and time of milling on particle-size distribution,B4C particles homogeneity and interfacial bonding of the mixed-powder was investigated.The results indicate that the two factors above are important to particles distribution and interfacial bonding.A specific velocity and a proper mixing time of milling make a uniform distribution of B4C particles and fine interfacial bonding.Milling 6h with low speed... |
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| Keywords: | B4C-Al composites high energy ball milling distribution of particles interfacial bonding homogeneity |
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