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防原子
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    PERFORMANCE STUDY OF THIN FILMS FOR ATOMIC OXYGEN AND RADIATION ENVIRONMENT PROTECTION IN SPACE
    防原子氧与抗辐射环境薄膜性能研究
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  antiatom
Configuration interaction formalism for atom-antiatom systems
      
The Hartree-Fock LCAO MO SCF formalism designed for molecular atom-antiatom systems has been proposed.
      


The metal oxide films are widely use as thermal control materials on satellitesurface against static electricity accumulation. It is further found in the experimentthat these films have also the excellent ability for plasma oxygen and radiationprotection in the space environment. The ability depends on the deposition methodsand process parameters. The test results indicate that the mass loss of the sampleswith sputtered TO film is much less than that of the samples of evaporated ITOfilm, and the mass loss of...

The metal oxide films are widely use as thermal control materials on satellitesurface against static electricity accumulation. It is further found in the experimentthat these films have also the excellent ability for plasma oxygen and radiationprotection in the space environment. The ability depends on the deposition methodsand process parameters. The test results indicate that the mass loss of the sampleswith sputtered TO film is much less than that of the samples of evaporated ITOfilm, and the mass loss of the samples with evaporated ITO film is less than thatof the samples uncoated too. After plasma oxygen action, electron radiation andultraviolet radiation, the variation of the sheet resistance and the solar absorptanceof To film is also much less than that of ITO film. The AFM analysis proves thatthere is a large difference of the film's stability and compactness by the differentpreparing method and processes.

金属氧化物薄膜具有良好的光学、电学特性,因此是卫星表面热控材料防静电积累的重要材料之一.实验研究发现这些金属氧化物薄膜还具有优良的防原子氧和抗空间辐照环境的能力,而且这种能力与成膜方法及工艺过程直接相关.经模拟原子氧环境的氧等离子体作用后,溅射镀氧化锡样品的质损明显小于蒸镀氧化铟锡薄膜的质损,而氧化钢锡薄膜的质损又小于未镀薄膜试样质损.氧等离子体作用、电子辐照和紫外辐照后,TO薄膜样品的方阻和太阳吸收率的变化明显小于ITO薄膜样品.最后经表面原子力显微镜分析表明不同制备的方法与工艺所获得的薄膜致密度有很大的差别,造成薄膜的稳定性明显不同.

The possibility of carbon nitride films being used in space fields was discussed in this paper. The structure and chemical components of carbon nitride films prepared through electron-gun evaporation of high purity graphite assisted by bombardment of nitrogen ion-beam were analyzed. The experiments result of atomic oxygen action and cold welding with ground simulation devices proved that the films have good anti-cold welding properties and that the films containing the Tin and Titanium have good anti-atomic...

The possibility of carbon nitride films being used in space fields was discussed in this paper. The structure and chemical components of carbon nitride films prepared through electron-gun evaporation of high purity graphite assisted by bombardment of nitrogen ion-beam were analyzed. The experiments result of atomic oxygen action and cold welding with ground simulation devices proved that the films have good anti-cold welding properties and that the films containing the Tin and Titanium have good anti-atomic oxygen properties as well.

探讨了氮化碳(CNx)薄膜在空间领域中的应用.用电子束蒸发离子束辅助沉积的方法制备的氮化碳薄膜,对其结构和成分进行了分析,并用地面模拟设备进行了耐原子氧腐蚀和防冷焊试验,结果表明氮化碳薄膜具有较好的防冷焊性能,掺有Ti和Sn的碳氮膜具有很好的防原子氧性能.

 
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