...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Planetary and space science >Mitigation of lunar dust adhesion by surface modification
【24h】

Mitigation of lunar dust adhesion by surface modification

机译：通过表面改性减轻月尘附着

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Dust has been recognized as one of the greatest hazards in continued lunar exploration due to its tenacious adhesion to everything with which it comes into contact. Unfortunately, there is little known about the mechanisms of adhesion on widely varying surface types: van der Waals and electrostatic forces are the dominant forces under consideration here. Surface energy, roughness, mechanical properties and electronic properties are all known to contribute to the adhesion characteristics. An optimal solution to mitigate dust adhesion would be to identify the dominant components of the adhesive force and to reduce that force by surface modification. In this study, an ion beam process was used to modify (treat) the surfaces of three dramatically different materials spanning the range of conductor (black Kapton), semiconductor (silicon), and insulator (quartz). Adhesive forces between less than 25 um JSC-1 lunar simulants and these virgin/treated surfaces were measured in vacuum using a centrifugal force detachment method. We found that JSC-1 particles adhered less to treated silicon and quartz surfaces, correlated with a reduction in van der Waals force due to a reduced surface energy. The large reduction in adhesion for treated black Kapton is mainly due to the large decrease in the electrostatic (image) force that results from reduced contact charging. Materials in space and on the lunar surface will be directly exposed to high-energy ultraviolet radiation prior to being covered by dust, so the UV irradiation effects on surface adhesion were also examined. Both virgin and treated quartz surfaces are most affected by the UV-irradiation, showing dramatically increased adhesion.
机译：由于尘埃对与尘埃接触的所有物体都具有顽强的附着力，因此尘埃已被视为持续进行月球探索的最大危害之一。不幸的是，人们对广泛变化的表面类型上的粘附机理知之甚少：范德华力和静电力是此处考虑的主要力。已知表面能，粗糙度，机械性能和电子性能都有助于粘合特性。减轻灰尘粘附的最佳解决方案是确定粘附力的主要成分，并通过表面改性降低粘附力。在这项研究中，离子束工艺被用于修饰（处理）三种截然不同的材料，其表面覆盖导体（黑色Kapton），半导体（硅）和绝缘体（石英）的范围。使用离心力分离法在真空中测量小于25 um JSC-1月球模拟物与这些原始/处理过的表面之间的粘附力。我们发现JSC-1颗粒较少附着在经过处理的硅和石英表面上，这与由于降低的表面能而导致的范德华力降低有关。处理过的黑色Kapton的粘合力大大降低，主要是由于减少的接触电荷导致静电（图像）力大大降低。空间和月球表面的材料在被灰尘覆盖之前将直接暴露于高能紫外线辐射下，因此还检查了紫外线辐射对表面附着力的影响。原始和经处理的石英表面受紫外线照射的影响最大，显示出显着增加的附着力。

著录项

  • 来源
    《Planetary and space science》 |2011年第14期|p.1784-1790|共7页
  • 作者

    Adrienne Dove; Genevieve Devaud; Xu Wang; Mark Crowder; Anna Lawitzke; Christina Haley;

  • 作者单位

    Colorado Center for Lunar Dust and Atmospheric Studies, University of Colorado, Boulder, CO 80309, United States,Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO 80309, United States;

    Ball Aerospace and Technology Corporation, 1600 Commerce St., Boulder, CO 80306, United States;

    Colorado Center for Lunar Dust and Atmospheric Studies, University of Colorado, Boulder, CO 80309, United States,Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO 80309, United States;

    Ball Aerospace and Technology Corporation, 1600 Commerce St., Boulder, CO 80306, United States;

    Ball Aerospace and Technology Corporation, 1600 Commerce St., Boulder, CO 80306, United States;

    Ball Aerospace and Technology Corporation, 1600 Commerce St., Boulder, CO 80306, United States;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    moon; lunar dust; dust mitigation; adhesion;

    机译：月球;月尘;减尘;附着力;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号