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Preparation, characterization and infrared emissivity properties of polymer derived coating formed on 304 steel

  • Harbin Institute of Technology
  • Beijing Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

High infrared emissivity coatings were prepared on 304 steel by pyrolyzing reactions with poly(hydridomethylsiloxane) (PHMS) and Al/HW powders. The microstructure, phase and chemical composition of the coatings were determined by SEM, XRD and EDS techniques. The infrared emissive properties at wavelength 3-20μm of the coatings pyrolyzed at 600 and 800°C on the steels were investigated. It was found that the 800°C pyrolyzed coating exhibited a slightly higher infrared emissivity value than that of the 600°C pyrolyzed coating, which was attributed to the complete conversion of Al to Al 2O 3 and pyrolysis of PHMS into SiO 2, as well as the enhancement of photon emission by HW. Comparatively, the uncoated steel indicated a much lower infrared emissivity value about 0.2 in 8-14μm.

Original languageEnglish
Pages (from-to)3772-3776
Number of pages5
JournalSurface and Coatings Technology
Volume206
Issue number18
DOIs
StatePublished - 15 May 2012

Keywords

  • Coatings
  • Infrared emissivity
  • Infrared spectroscopy
  • Steel

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