Paper Title:
Improve Stability of Dicalcium Silicate/Zirconia Composite Coatings by Post-Spraying Heat Treatment
  Abstract

The long-term stability of plasma-sprayed dicalcium silicate (C2S) composite coatings is determined by the phase composition, crystallinity, and other properties. Zirconia reinforcement and post-spraying heat treatment are applied to C2S coatings simultaneously in this work. The stability of the coating increases evidently by reinforcement with 70wt% zirconia and heat treatment at 800oC for 4 hours. SEM reveals that the smooth glassy surface of the as-sprayed coatings is replaced by randomly dispersed crystals. Tris-HCl immersion test results show that the dissolution rate of the composite coatings decreases after the heat treatment.

  Info
Periodical
Solid State Phenomena (Volume 107)
Main Theme
Edited by
T. Vilaithong, D. Boonyawan and C. Thongbai
Pages
141-144
DOI
10.4028/www.scientific.net/SSP.107.141
Citation
Y. Xie, P. K. Chu, X. Y. Liu, C. X. Ding, "Improve Stability of Dicalcium Silicate/Zirconia Composite Coatings by Post-Spraying Heat Treatment", Solid State Phenomena, Vol. 107, pp. 141-144, 2005
Online since
October 2005
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