| 高体分SiCp/Al复合材料表面吸附氦气特性 |
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| 引用本文： | 刘云彦,李家峰,闻强苗,白晶莹,崔庆新.高体分SiCp/Al复合材料表面吸附氦气特性[J].宇航材料工艺,2018,48(4):85-88. |
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| 作者姓名： | 刘云彦 李家峰 闻强苗 白晶莹 崔庆新 |
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| 作者单位： | 北京卫星制造厂 |
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| 摘 要： | 针对高体分SiC_p/Al复合材料气密性问题,系统研究了镀覆、原材料方向性对表面氦气吸附性能影响规律。研究发现该材料经镀覆处理后,其表面氦气吸附合格率提高20%,且随着镀层厚度的增加合格率逐渐提高;不同的机械加工方式对表面氦气吸附合格率影响较小;原材料存在方向各异性,横向切削下料方式下氦气吸附合格率高达91%,纵向切削下料方式下合格率仅为68%。
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| 关 键 词： | 高体分SiCp/Al复合材料 气密性 镀层 |
| 收稿时间： | 2017/5/31 0:00:00 |
Helium Adsorption Capability of High Volume Fraction SiCp/Al composites |
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| LIU Yunyan,LI Jiafeng,WEN Qiangmiao,BAI Jingying and CUI Qingxin.Helium Adsorption Capability of High Volume Fraction SiCp/Al composites[J].Aerospace Materials & Technology,2018,48(4):85-88. |
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| Authors: | LIU Yunyan LI Jiafeng WEN Qiangmiao BAI Jingying and CUI Qingxin |
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| Institution: | Beijing Spacecrafts, Beijing 100094,Beijing Spacecrafts, Beijing 100094,Beijing Spacecrafts, Beijing 100094,Beijing Spacecrafts, Beijing 100094 and Beijing Spacecrafts, Beijing 100094 |
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| Abstract: | Aiming at the air tightness ofSiCp/Al composites with high volume fraction, the influence of plating and orientation of raw materials on surface helium adsorption properties was systematically studied. It was found that after plating treatment on the high volume fraction of SiCp/Al composite, the qualified rate of the helium adsorption capability increased 20%, and the qualified rate increased gradually with the increase of coating thickness. Difference in mechanical processing has little influence on the qualified rate of the helium adsorption capability. The raw material is anisotropic, the qualified rate of transverse cutting is 91%, and the longitudinal cutting is 68%. |
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| Keywords: | High volume fraction SiCp/Al composites Gas-tightness Plating |
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