Acta Metallurgica Sinica (English Letters) >
Application of low-emissivity Pt layer on Ni alloy to high temperature
Received date: 2009-06-26
Revised date: 2009-10-13
Online published: 2010-02-09
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 nickel-alloy elements at
600 ℃ had been also discussed.
Key words： Low-emissivity layer; Platinum film; Infrared emissivity
HUANG Zhi-Bin , ZHOU Mo-Cheng , TANG Xiu-Feng . Application of low-emissivity Pt layer on Ni alloy to high temperature[J]. Acta Metallurgica Sinica (English Letters), 2010 , 23(1) : 1 -7 . DOI: 10.11890/1006-7191-101-1
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