随着高能球磨时间的增加,Al,Ti和C粉料混合物颗粒的尺寸不断细化,各元素的分布也愈均匀,并且粉料相互团聚成团聚体.颗粒内的晶粒也不断细化,晶粒畸变,晶体内部缺陷增多;球磨一定时间后,形成纳米晶,甚至产生非晶组织.这些因素都有助于扩散,从而促进后续合成反应的完成.
参考文献
| [1] | 马明亮.机械合金化诱发固态燃烧还原反应及其原位合成纳米复合材料的研究 [D].西安交通大学博士学位论文,1999.100-110. |
| [2] | 马乃恒,方小汉,梁工英,苏俊义.激光熔覆原位合成TiCP/Al复合材料的研究 [J].中国有色金属学报,2000,10(6):843-846. |
| [3] | Ren R M, Yang Z G, Shaw L L.Synthesis of nanostructured TiC via carbothermic reduction enhanced by mechanical activation [J]. J Scripta Materialia,1998,38(5):735-741. |
| [4] | Ye L L, Liu Z G, Li S D,et al.Thermochemistry of combustion reaction in Al-Ti-C system during mechanical alloying [J]. J Mater Res, 1997,12(3):616-618. |
| [5] | Wu N Q, Lin S, Wu J M,et al.Mechanosynthesis mechanism of TiC powders [J].J Mater Sci and Tech,1998,14:287-291. |
| [6] | Tetsuya Nukami, Merton C Flemings.In situ synthesis of TiC particulate-reinforced aluminium matrix composites [J]. J Metall Mater Trans,1995,26A(7):1877-1883. |
| [7] | Liu K W, Zhang J S, Wang J G, Chen G L. Formation of intermetallic nanocomposites in the Ti-Al-Si system by mechanical alloying and subsequent teat treatment [J].J Mater Res, 1998,13(5):1198-1123. |
| [8] | 席生歧.高能球磨固态反应制备纳米晶合金及复合材料的研究 [D].西安交通大学博士学位论文,1996.20-31. |
| [9] | 刘新宽.机械力活化合成氮化铝的研究 [D].西安交通大学博士学位论文,1999.19-21. |
| [10] | 王国成,吴军,刘玉先,杨俊法.Fe-C-Ti机械合金化粉末的电子显微试样制备及分析 [J].粉末冶金技术,1998,16(1):52-56. |
| [11] | Aikin B J M, Courtney T H.The kinetic of composite particle formation during mechanical alloying [J].Metall Trans,1993,24A(3):647-657. |
| [12] | Sundarasana R, Fores F H. Mechanical alloying [J]. J Met,1987.39(8):22-27. |
| [13] | Gleiter H.Nanocrystalline materials [J].J Prog Mater Sci,1989,33(4):224-315. |
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