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固體材料的空間環(huán)境摩擦試驗(yàn)

Friction test of solid materials in simulated space environments

  • 摘要: 為了開展在模擬空間環(huán)境下材料摩擦學(xué)性能的研究，利用自行研制的空間環(huán)境摩擦試驗(yàn)裝置，進(jìn)行了幾種固體材料在超高真空、交變溫度和輻照（原子氧、紫外）等環(huán)境下的摩擦試驗(yàn)。試驗(yàn)結(jié)果表明：與大氣環(huán)境下相比，PTFE、PI、MoS2/PI粘結(jié)涂層和離子鍍Ag薄膜在≤5×10-4 Pa真空環(huán)境中的摩擦系數(shù)發(fā)生了明顯變化；高低溫對離子鍍Ag薄膜在真空中的摩擦系數(shù)有顯著影響，而對濺射MoS2薄膜的摩擦系數(shù)影響不明顯；原子氧和紫外輻照導(dǎo)致PI、Kapton、PTFE和MoS2/PI粘結(jié)涂層等的真空摩擦系數(shù)顯著改變。

     

    Abstract: The effects of simulated space environments on tribological properties of several solid materials were evaluated by the space tribological test system. The simulated space environments include ultrahigh vacuum, thermal cycling, atomic oxygen and ultraviolet irradiation. The primary test results show that the friction behaviors of most tested solid lubricants would deteriorate considerably in the simulated space environments.

     

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