|
|||||
|
|
| Al/SiC复合材料的准分子激光表面改性 | |
| 引用本文： | 梅胜敏,余大民. Al/SiC复合材料的准分子激光表面改性[J]. 航空学报, 1999, 20(2): 141-143 |
| 作者姓名： | 梅胜敏 余大民 |
| 作者单位： | 1. 南京航空航天大学机电工程学院, 南京, 210016;2. 香港理工大学制造工程系, 香港九龙 |
| 摘 要： | 利用KrF准分子激光对SiC晶须增强铝基复合材料进行表面改性。借助于显微镜及X射线衍射技术，对激光处理前后试件表层的显微组织及化学结构进行了分析。结果表明，准分子激光处理后，试件表面形成了一个几微米厚的铝层。该薄层中基本上不含金属间化合物，SiC增强相的数量也显着减少。腐蚀测试结果表明，准分子激光表面处理后，材料的抗腐蚀性能得到了显着提高。 |
| 关 键 词： | 表面改性 金属基复合材料 准分子激光 |
| 收稿时间： | 1998-05-20 |
| 修稿时间： | 1998-08-31 |
SURFACE MODIFICATION OF Al/SiC METAL MATRIX COMPOSITE BY EXCIMER LASER |
|
| Mei Shengmin ,Yu Damin. SURFACE MODIFICATION OF Al/SiC METAL MATRIX COMPOSITE BY EXCIMER LASER[J]. Acta Aeronautica et Astronautica Sinica, 1999, 20(2): 141-143 | |
| Authors: | Mei Shengmin Yu Damin |
| Affiliation: | 1. Institute of Mechanical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016;2. Department of Manufacturing Engineering, Hong Kong Polytechnic University, Hong Kong, Kowloon |
| Abstract: | The surfaces of 2009Al/SiC w metal matrix composite specimens were irradiated with a powerful KrF excimer laser. After laser treatment, the morphology and the structure were examined with the aid of microscope and X ray diffraction techniques. It was found that an aluminium layer a few microns thick was formed on the surface of Al MMC. Little SiC reinforcement and larger intermetallics can be found in this layer. Corrosion measurements showed that the laser modified Al MMC exhibited a higher corrosion resistance. |
| Keywords: | surface modification metal matrix composite (MMC) excimer laser |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《航空学报》浏览原始摘要信息 | |
| 点击此处可从《航空学报》下载全文 | |