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真空紫外對(duì)原子氧環(huán)境下S781白漆 性能影響的研究

Influences of vacuum ultraviolet on the property of S781 white paint in atomic oxygen environment

  • 摘要: 文章利用AOBISEE設(shè)備對(duì)S781白漆分別進(jìn)行了單一原子氧環(huán)境試驗(yàn)、真空紫外與原子氧遞次試驗(yàn)以及原子氧與真空紫外綜合輻照試驗(yàn)研究。試驗(yàn)研究中原子氧的積分通量為3.5×1019 atom/cm2，真空紫外輻照劑量為200 ESH；試驗(yàn)前后用高精度微量電子天平和TEMP 2000A便攜式熱發(fā)射率測(cè)試儀分別對(duì)樣品的質(zhì)量和熱發(fā)射率進(jìn)行了測(cè)試。通過測(cè)試及分析，發(fā)現(xiàn)原子氧與真空紫外綜合環(huán)境對(duì)S781白漆產(chǎn)生了協(xié)和效應(yīng)。S781白漆在經(jīng)原子氧與真空紫外綜合環(huán)境作用之后質(zhì)量損失顯著增大，3種不同環(huán)境試驗(yàn)對(duì)S781白漆的熱發(fā)射率影響不明顯。在輻照劑量范圍內(nèi)，S781白漆的真空紫外與原子氧遞次試驗(yàn)不能替代原子氧／真空紫外綜合輻照試驗(yàn)。

     

    Abstract: This paper studies the atomic oxygen (AO) erosion effects, VUV/AO ordinal effects and AO/VUV synergistic effects on the thermal control coating S781 by using AOBISEE facility. Samples were exposed to a fluence of 3.5×1019 atom/cm2 AO and 200 ESH VUV. The mass of the samples was measured by high precision micro-electron balance after the test. Emissivity was measured by TEMP 2000A. For the thermal control paint S781, the synergistic effects can be shown by its mass loss, which is increased obviously after the synthetic experiment of AO/VUV. However, the emissivity is not affected significantly after the three different experiments. Results also indicate that VUV/AO ordinal experiment can not replace the AO/VUV synthetic experiment for thermal control paint S781 within the irradiation dose.

     

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