Platinum films were sputter-deposited on two groups of nickel alloy substrates, in which the first group was the samples with rough surface, and the other group with polished surface. The platinum thin-films were applied to serve as the low-emissivity layers to reflect thermal radiation. Then, the platinum-coated samples were heated in air at 600 ℃ for 200 h to explore the effect of high-temperature environment on the emissivity of coated platinum film. After annealing, the average IR emissivity (at the wavelength of 3-14 μm) of the platinum film was only about 0.1 for polished sample and 0.45 for rough sample. The diffusion between platinum and the nickelalloy elements at 600 ℃ had been also discussed.
参考文献
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| [2] | A. Bessiere;C. Marcel;M. Morcrette;J-M. Tarascon;V. Lucas;B. Viana;N. Baffier .Flexible electrochromic reflectance device based on tungsten oxide for infrared emissivity control[J].Journal of Applied Physics,2002(3):1589-1594. |
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