Thermal radiation properties of C/SiC composites

Wenming Wu, Laifei Cheng, Wei Wang

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The total hemisphere emissivity (εH) at 90°C and the normal spectral reflectance at room temperature of 3D C/SiC composites were measured with the steady-state calorimeter method and FTIR, respectively. The effects of the surface morphology, thickness of SiC coating and high temperature oxidation on the thermal radiation properties of 3D C/SiC were investigated. The results show that 3D C/SiC composites have excellent thermal radiation properties and the total hemisphere emissivity attains 0.83. With increasing the SiC coating thickness, the total hemisphere emissivity of 3D C/SiC composites decreases first and increases then. After oxidation, the thermal radiation properties of 3D C/SiC with three character surface remarkably increase.

Original languageEnglish
Pages (from-to)79-84
Number of pages6
JournalFuhe Cailiao Xuebao/Acta Materiae Compositae Sinica
Volume25
Issue number5
StatePublished - Oct 2008

Keywords

  • 3D C/SiC composites
  • Emissivity
  • The normal spectral reflectance
  • Thermal radiation properties

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