The studies indicated that the rigidity of the copper billet was enhanced a lot with different pressure and different forms of pressure , and by the obvertion of the microscopic structure , we find that the aluminizing formations had different thickness with different pressure 研究结果表明:对不同压制压力下及不同压制方式的纯铜渗铝后,铜坯的硬度得到很大的提高,对显微组织观察可知,在不同压力下渗铝其渗层厚度明显不同。
In this paper , the vacuum thermo - cycling effects and vacuum ultraviolet effects on space inflatable structural materials were analyzed based on a thorough survey over the studies done through flight tests , ground simulation experiments and theoretical research . the main contents of this thesis are as follows : the performance damage effects of thermo - cycling on space inflatable structural fabric carbon fiber reinforced epoxy laminates ( cf / ep ) , aluminized kapton ( al / kapton ) films which used as reflector of space inflatable antenna were investigated by a temperature range of - 120 120 with the vacuum degree 10 - 5 pa which conducted with space environment ground - based simulation facility 本文在对国内外飞行试验、地面模拟试验以及理论研究等所取得的成果调研的基础上,针对空间充气结构材料进行地面模拟真空热循环与真空紫外辐照的研究工作:利用真空热循环地面模拟试验机研究了真空环境( 10 - 5pa )中- 120 120的热循环条件下空间充气支撑结构织物碳纤维增强环氧树脂( cf / ep )层合材料、空间充气展开天线反射面镀铝聚酰亚胺( al / kapton )薄膜的空间环境效应。