Paper Title:
Preparation and Characterization of Yttrium Oxide Coatings by Plasma Spraying
  Abstract

Y2O3 coatings were prepared on aluminum substrates using plasma spraying with argon as primary gas. Structure and morphology were characterized by using X-ray diffraction, scanning electron microscopy and metallographic analysis. Results show that Y2O3 coating’s porosity is 5.6%. Coatings prepared with helium as secondary gas are purely white. However, there are black spots when hydrogen is used as secondary gas. A phase transformation from cubic to monoclinic tends to take place during the spraying operation under argon and hydrogen atmosphere. However this prejudicial transformation can be suppressed by using helium instead of hydrogen.

  Info
Periodical
Advanced Materials Research (Volumes 239-242)
Edited by
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Pages
81-85
DOI
10.4028/www.scientific.net/AMR.239-242.81
Citation
X. C. Luo, W. D. Wang, B. W. Liu, C. B. Li, Y. Xia, "Preparation and Characterization of Yttrium Oxide Coatings by Plasma Spraying", Advanced Materials Research, Vols. 239-242, pp. 81-85, 2011
Online since
May 2011
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$32.00
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