Paper Title:
Investigation of High Emissivity Coatings Prepared by Plasma Spraying
  Abstract

In this study, the feedstock powder for plasma spray was prepared by spray drying and post-sintering at 1360 °C using raw metal oxides. The high emissivity coating was deposited by air plasma spraying (APS). The microstructure, phase structure, flowability and bulk density of the plasma sprayed powder were characterized. The microstructure, bond strength and infrared emissivity of the high emissivity coating were also analyzed in this paper. The results reveal that the feedstock powder present good flowability of 42.36 (sp50g) with the bulk density of 1.94 gpml and is suitable for plasma spraying. A dense coating with the bond strength of 39.6MPa and the porosity less than 5 percent was prepared successfully. The normal emissivity of the coating in all waveband is 0.88 at 300°C and 0.87 at 600°C.

  Info
Periodical
Advanced Materials Research (Volumes 287-290)
Chapter
Thin Films
Edited by
Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li
Pages
2283-2287
DOI
10.4028/www.scientific.net/AMR.287-290.2283
Citation
C. Wang, Q. S. Wang, X. J. Ning, Z. Du, Y. B. Liu, P. Gu, "Investigation of High Emissivity Coatings Prepared by Plasma Spraying", Advanced Materials Research, Vols. 287-290, pp. 2283-2287, 2011
Online since
July 2011
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Price
$32.00
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