| 球磨时间对Cu-MoSi2粉末结构与形貌的影响 |
| |
| 引用本文： | 陈辉,邹欣伟,马勤,郭铁明.球磨时间对Cu-MoSi2粉末结构与形貌的影响[J].甘肃科学学报,2008,20(3):68-71. |
| |
| 作者姓名： | 陈辉 邹欣伟 马勤 郭铁明 |
| |
| 作者单位： | 1. 兰州理工大学,甘肃省有色金属新材料省部共建国家重点实验室,甘肃,兰州,730050
2. 兰州理工大学,甘肃省有色金属新材料省部共建国家重点实验室,甘肃,兰州,730050;兰州理工大学,有色金属合金省部共建教育部重点实验室,甘肃,兰州,730050 |
| |
| 基金项目： | 甘肃省自然科学基金，兰州理工大学特色研究方向梯队项目 |
| |
| 摘 要： | 采用X射线衍射分析、扫描电镜、能谱分析等手段,研究了Cu-MoSi2粉末在球磨过程中的组织形态特征以及微观结构的变化.结果表明：混合粉末在球磨过程中表现出先形成机械包裹体再破碎细化的演变过程;球磨60 h混合粉末性能最佳,Cu的最小晶粒尺寸为14.4 nm,MoSi2的最小晶粒尺寸为24.1 nm;混合粉末中MoSi2表现出衍射峰强度和晶粒尺寸先减小后变大,而显微应变先增大后快速减小的反常现象.
|
| 关 键 词： | Cu-MoSi2 混合粉末 球磨 弥散强化 |
The Effect of Ball Milling on the Structure and Morphology of Cu-MoSi_2 Powder |
| |
| CHEN Hui,ZOU Xin-wei,MA Qin,GUO Tie-ming.The Effect of Ball Milling on the Structure and Morphology of Cu-MoSi_2 Powder[J].Journal of Gansu Sciences,2008,20(3):68-71. |
| |
| Authors: | CHEN Hui ZOU Xin-wei MA Qin GUO Tie-ming |
| |
| Institution: | 1.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials;Lanzhou University of Science andTechnology;Lanzhou 730050;China;2.Key Laboratory of Non-ferrous Metal Alloys;the Ministry of Education;Lanzhou University of Science and Technology;China |
| |
| Abstract: | The structural and morphological characters and the microstructure changes of Cu-MoSi2 mixed powder were studied by means of X-ray diffraction,scanning electrical microscopy and energy spectrum analyses.The results showed that the composite powder presented the following evolvement process during milling:first forming mechanically coated bodies and then being crashed and refined.The composite powder had the optimal property when the least crystal size of copper was 14.4nm and that of MoSi2 was 24.1nm after ... |
| |
| Keywords: | Cu-MoSi2 |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
