| 气相下材料真空放气性能的理论研究 |
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| 引用本文： | 肖尤明,金听祥,徐烈.气相下材料真空放气性能的理论研究[J].低温与超导,2005,33(3):25-28. |
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| 作者姓名： | 肖尤明 金听祥 徐烈 |
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| 作者单位： | 上海交通大学制冷与低温研究所,上海,200030;上海德尔福汽车空调系统有限公司,上海,201204;上海交通大学制冷与低温研究所,上海,200030 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 气相下,材料表面气体分子的脱附速率会大大增加。文中对这方面的研究进行了总结,并应用分子动力学理论,从气相空间分子间的碰撞、气相空间分子与材料表面的碰撞、气相空间分子与材料表面的相互作用、材料表面气体分子的徙动、材料表面气体分子的脱附几个方面,从理论上研究气相下材料的真空放气性能。
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| 关 键 词： | 气相下 脱附 吸附 徙动 |
| 修稿时间： | 2005年3月17日 |
Study on the Outgassing Character of Material under Gas Atmosphere |
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| Xiao Youming,in Tingxiang,XU Lie.Study on the Outgassing Character of Material under Gas Atmosphere[J].Cryogenics and Superconductivity,2005,33(3):25-28. |
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| Authors: | Xiao Youming in Tingxiang XU Lie |
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| Abstract: | Under gas atmosphere, the desorption rate will increase sharply. In this paper, the molecule kinetics theory was adopted to explain the desorption mechanism under gas atmosphere. Through the investigations of gas molecules impact in gaseous phase space, gas molecules in gaseous phase space collision with the surface of material, the interaction between the gas molecules in gaseous phase space and the surface of material, the gas migration on the surface and the gas desorption from the surface, it is found that when certain high-purity gas has been charged into the vacuum space, the desorption rate of the gas has improved sharply. |
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| Keywords: | Under gas atmosphere Desorption Adsorption Migration |
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