Preliminary results of an atomic oxygen spaceflight experiment
Preliminary results of an atomic oxygen spaceflight experiment
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DOI：
10.1016/s0167-577x(96)00290-x
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发表时间：
1997-06-01
影响因子：
3
通讯作者：
Roberts, GT
中科院分区：
文献类型：
--
作者：
Harris, IL;Chambers, AR;Roberts, GT
目前正在一颗微型卫星（STRV-1a）上进行原子氧实验，以测量原子氧环境和某些材料的腐蚀率。实验包括四个裸银电阻传感器和八个具有聚乙烯薄膜覆盖层的银传感器。聚四氟乙烯，碳和二氧化硅。从裸银膜的结果的初步分析显示出良好的协议之间的测量AO环境的理论ESABASE环境估计。计算出的PTFE的腐蚀速率也是在良好的协议，通过暴露在实验室模拟设施中的相同的传感器。正如预测的那样，在飞行250天后，聚乙烯，碳和二氧化硅覆盖传感器的状态没有变化。
An atomic oxygen (AO) experiment designed to measure the AO environment and the erosion rare of selected materials is currently flying on a microsatellite (STRV-1a). The experiment comprised four bare silver resistance sensors and eight silver sensors with thin film overlays of polyethylene. PTFE, carbon and silica. Preliminary analysis of the results from the bare silver films shows good agreement between the measured AO environment with that of the theoretical ESABASE environmental estimates. The calculated erosion rate for PTFE is also in good agreement with that obtained by exposing an identical sensor in a laboratory simulation facility. As predicted, after 250 days into the flight, there is no change in the status of polyethylene, carbon and silica overlay sensors.