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材料研究学报  2007, Vol. 21 Issue (4): 337-342    
  论文 本期目录 | 过刊浏览 |
Ti-Al系金属间化合物多孔材料的制备和性能
黄虎军  贺跃辉  江垚  黄伯云  徐南平
引用本文:

黄虎军; 贺跃辉; 江垚; 黄伯云; 徐南平 . Ti-Al系金属间化合物多孔材料的制备和性能[J]. 材料研究学报, 2007, 21(4): 337-342.

全文: PDF(856 KB)  
摘要: 用粉末冶金模压成形和无压反应烧结方法,制备出Ti-Al系金属间化合物多孔材料,研究了铝含量对其孔隙形成机理以及孔结构性能的影响.结果表明:烧结后Ti-Al合金坯块发生了显著的体积膨胀;最大孔径和开孔隙率都随着铝含量的增加而增大,当铝含量(质量分数)超过60%时,总孔隙率出现下降趋势;Kirkendall效应导致的钛铝元素偏扩散反应是体积膨胀和孔隙形成的主要原因.
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收稿日期: 1900-01-01     
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