| SiCp/Mg复合材料的制备及其阻尼特性研究 |
| |
| 引用本文： | 王云思,段东平,杨占寿,牛瑞龙,闫方甲.SiCp/Mg复合材料的制备及其阻尼特性研究[J].盐湖研究,2019,27(3):68-74. |
| |
| 作者姓名： | 王云思 段东平 杨占寿 牛瑞龙 闫方甲 |
| |
| 作者单位： | 中国科学院青海盐湖研究所中国科学院盐湖资源综合高效利用重点实验室;青海省盐湖资源综合利用工程技术中心;中国科学院大学;中国科学院过程工程研究所绿色过程与工程重点实验室 |
| |
| 基金项目： | 青海省科技厅项目,镁铝锶合金制备及相图(2013-Z-704) |
| |
| 摘 要： | 采用搅拌铸造法在真空度为200 Pa的条件下制备得到含有微量氧化物的SiCp/Mg复合材料,通过显微组织观察和动态热机械分析等对其阻尼特性进行了研究。结果表明,所制备的SiCp/Mg复合材料基体晶界处分布着附着有氧化物的网状结构,且随着SiCp含量的增加,网状结构增多,且分布更加分散。此结构增大了位错密度和晶粒界面滑移,位错脱钉和界面滑移在振动过程中耗能量增大,因此所制备的SiCp/Mg复合材料具有理想的阻尼性能。
|
| 关 键 词： | 搅拌铸造 SiCp/Mg复合材料 阻尼性能 颗粒 |
| 收稿时间： | 2018/1/15 0:00:00 |
| 修稿时间： | 2018/2/4 0:00:00 |
The Preparation and Damping Capacity of Sicp/Mg Composite Material |
| |
| WANG Yun-si,DUAN Dong-ping,YANG Zhan-shou,NIU Rui-long and YAN Fang-jia.The Preparation and Damping Capacity of Sicp/Mg Composite Material[J].Journal of Salt Lake Research,2019,27(3):68-74. |
| |
| Authors: | WANG Yun-si DUAN Dong-ping YANG Zhan-shou NIU Rui-long and YAN Fang-jia |
| |
| Institution: | Qinghai Institute of Salt Lakes, Chinese Academy of Sciences,Institute of Process Engineering, Chinese Academy of Sciences,Qinghai Institute of Salt Lakes, Chinese Academy of Sciences,University of Chinese Academy of Sciences,University of Chinese Academy of Sciences |
| |
| Abstract: | The SiCp/Mg composites material with oxides were prepared by stir casting method under the condition of vacuum degree of 200 Pa.The damping properties were studied by means of microstructure observation and dynamic mechanical thermal analysis.The results showed that the network structure containing oxides were distributed in the SiCp/Mg matrix.Meanwhile,with the increase of SiCp content,the network structure was more and the distribution was more dispersed.And this structure increased the dislocation density and the grain boundary slip,resulting in the increase of the energy consumption in the vibration process through dislocation breakaway from pinning points and the interface slip.Therefore,the prepared SiCp/Mg matrix composites has the ideal damping property. |
| |
| Keywords: | Stir casting Mg matrix composites Damping capacities Particles |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《盐湖研究》浏览原始摘要信息 |
| 点击此处可从《盐湖研究》下载免费的PDF全文 |
|
