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In‐depth composition study of zirconia‐coated steel sheet by XPS
Author(s) -
López R.,
Romero R.,
Martín F.,
RamosBarrado J. R.,
Leinen D.
Publication year - 2006
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.2270
Subject(s) - cubic zirconia , x ray photoelectron spectroscopy , pyrolysis , coating , materials science , zirconium , carbon fibers , conversion coating , infrared , carbide , degradation (telecommunications) , infrared spectroscopy , diffuse reflectance infrared fourier transform , metallurgy , chemical composition , chemical engineering , composite material , photocatalysis , chemistry , optics , organic chemistry , catalysis , telecommunications , ceramic , physics , composite number , computer science , engineering
Zirconia was deposited by spray pyrolysis on large‐area aluminized steel sheets using two different types of heat sources: infrared radiation or white light. XPS in‐depth composition study has shown that the carbon concentration is 4 at.% when using white light but 15 at.% when using infrared radiation. This carbon is found as zirconium carbide, formed as a diluted phase in the zirconia coatings. In the case of using infrared radiation, reflectance spectroscopy revealed a partial degradation of the optical properties of the coatings due to an incomplete pyrolysis of the precursor. These findings are of direct interest for unglazed solar façade elements made of steel, in which the zirconia coating will act as a barrier layer against the degradation of the steel sheet during long‐term outdoor exposure. Copyright © 2006 John Wiley & Sons, Ltd.