| 高能球磨对Al-Ti-C粉料混合物粒度和组织的影响 |
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| 引用本文： | 马乃恒,方小汉,梁工英,苏俊义. 高能球磨对Al-Ti-C粉料混合物粒度和组织的影响[J]. 复合材料学报, 2002, 19(2): 33-36 |
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| 作者姓名： | 马乃恒 方小汉 梁工英 苏俊义 |
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| 作者单位： | 西安交通大学,机械工程学院耐磨材料研究所,西安,710049 |
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| 基金项目： | 国家自然科学基金资助项目 (5 98710 3 8)，西北工业大学国家凝固重点实验室资助项目 |
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| 摘 要： | 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。
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| 关 键 词： | 高能球磨 粉料混合物 细化 均匀化 团聚化 晶粒 |
| 文章编号： | 1000-3851(2002)02-0033-04 |
| 收稿时间： | 2000-06-04 |
| 修稿时间： | 2000-06-04 |
INFLUENCE OF HIGH-ENERGY BALL MILLING ON GRAIN SIZE AND STRUCTURE OF Al-Ti-C POWDER MIXTURE |
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| MA Nai-heng,FANG Xiao-han,LIANG Gong-ying,SU Jun-yi. INFLUENCE OF HIGH-ENERGY BALL MILLING ON GRAIN SIZE AND STRUCTURE OF Al-Ti-C POWDER MIXTURE[J]. Acta Materiae Compositae Sinica, 2002, 19(2): 33-36 |
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| Authors: | MA Nai-heng FANG Xiao-han LIANG Gong-ying SU Jun-yi |
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| Affiliation: | School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049,China |
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| Abstract: | Along with the increase in the time of high energy ball milling, the grain size of Al Ti C powder mixture is decreased continuously and the distribution uniformity of each element in the mixture is improved obviously. Meanwhile, the powders are aggregated with each other. In addition, the crystal size within each powder particle is also decreased during ball milling, while the defects in the crystal are increased. After milling for a certain time, the nano crystals are formed. Going a step further, the amorphous structure will be also produced. These factors are beneficial to diffusion and promote the completion of the synthesis reactions. |
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| Keywords: | high energy ball milling Al Ti C powder mixture grain size uniformity aggregation crystal size |
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