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首页> 外文会议>World Tribology Congress III 2005 vol.2 >CHANGES IN TRIBOLOGICAL PROPERTIES OF MOS_2 FILM EXPOSED TO LEO ON SM/SEED
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CHANGES IN TRIBOLOGICAL PROPERTIES OF MOS_2 FILM EXPOSED TO LEO ON SM/SEED

机译：在SM / SEED上暴露于LEO的MOS_2薄膜的摩擦学性能变化

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摘要

Service Module / Space Environment Exposure Device (SM/SEED) is experimental system aboard International Space Station (ISS) to evaluate the degradation of various materials for space application under the Low Earth orbit (LEO) space environment. Three sets of exposure pallets of SM/SEED with the same samples have been exposed to LEO since October 2001. One of the pallets returned to Earth after about one-year exposure. A bonded molybdenum disulfide (MoS_2) film was also exposed as a tested material of SM/SEED. The changes in tribological characteristics of the film were examined. And effects of ground-based irradiation with LEO environmental factors (e.g., Atomic Oxygen (AO) and Ultraviolet rays (UV)) were also evaluated. At the beginning of the test, low friction coefficient was observed both in the flight and the AO-irradiated samples. MoO_2 was detected from the surface of these samples. A large amount of SiO_2 was recognized from the flight sample.
机译：服务模块/空间环境暴露装置（SM / SEED）是国际空间站（ISS）上的实验系统，用于评估低地球轨道（LEO）空间环境下用于空间应用的各种材料的降解。自2001年10月以来，已将三组带有相同样品的SM / SEED暴露托盘暴露于LEO中。其中一个托盘在暴露约一年后返回地球。粘合的二硫化钼（MoS_2）膜也作为SM / SEED的测试材料而暴露。检查了膜的摩擦学特性的变化。还评估了LEO环境因素（例如原子氧（AO）和紫外线（UV））对地面辐射的影响。在测试开始时，在飞行和经AO照射的样品中均观察到低摩擦系数。从这些样品的表面检测到MoO_2。从飞行样品中发现了大量的SiO_2。

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