| 姜海富,李胜刚,田修波,柴丽华,秦玮,张永泰.金属铜原子氧效应研究[J].装备环境工程,2015,12(3):70-74. JIANG Hai-fu,LI Sheng-gang,TIAN Xiu-bo,CHAI Li-hua,QIN Wei,ZHANG Yong-tai.Effect of Metal Copper under Atomic Oxygen Irradiation[J].Equipment Environmental Engineering,2015,12(3):70-74. |
| Objective To obtain copper properties data in space atomic oxygen (AO) environment and to enhance the design level of material space environment adaptability. Methods AO irradiation test of copper was conducted using a radio-frequency (RF) source AO simulation facility. The flux was 2.5 × 1016 atoms/cm2·s and the maximum irradiation time in test was 300 min. The variations in surface composition, surface morphology and properties with the increasing irradiation time were investigated in our study. Results After AO exposure, the sample surface became rough and the copper oxidation layer fell off from the sample surface after 300 min irradiation. The mass and solar absorption ratio of copper increased with the increasing irradiation time, the mass increased by 0.035 mg and the maximum solar absorption increment reached 0.07 after 300 min irradiation. In contrast, the spectrum reflectance decreased with increasing irradiation time. In addition, AO could also lead to the increase of hydrophobic property and decrease of friction and wear property. Conclusion AO effect data of metal copper was obtained, which could provide technical support for the space environment effect protection design of spacecraft. |
