Studies on preparation processes of Ni-Al2O3 solar thermal absorbing film

doi:10.3724/SP.J.1095.2010.90239

Chinese Journal of Applied Chemistry ›› 2010, Vol. 27 ›› Issue (03): 358-362.DOI: 10.3724/SP.J.1095.2010.90239

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Studies on preparation processes of Ni-Al2O3 solar thermal absorbing film

JIANG Jia-Xing, ZHAO Jian-Xi*, LIAO Xin-Huan, JIANG Rong

(Department of Applied Chemistry,College of Chemistry and Chemical
Engineering,Fuzhou University,Fuzhou 350108)

Received:2009-03-31 Revised:2009-07-06 Published:2010-03-10 Online:2010-03-10

Abstract

Abstract:

The effects of aluminum substrate treatment, sintering temperature and film thickness on solar absorptance of the Ni-Al2O3 composite films were investigated. The optimal coating had a nickel mole fraction of 80%, a sol concentration of 0.8 mol/L, and the aluminum substrates treated by H3PO4-CrO3 solution after mechanical polishing. And the film was sintered at 600 ℃. The film prepared by this condition has a good solar absorptance.

Key words: Ni-Al2O3 film, sol-gel　method, aluminum substrate treatment, sintering temperature, film thickness

CLC Number:

O611.3

JIANG Jia-Xing, ZHAO Jian-Xi*, LIAO Xin-Huan, JIANG Rong. Studies on preparation processes of Ni-Al2O3 solar thermal absorbing film[J]. Chinese Journal of Applied Chemistry, 2010, 27(03): 358-362.

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Studies on preparation processes of Ni-Al2O3 solar thermal absorbing film

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