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Title Reduction of interconnected porosity in zirconia-based thermal barrier coating
 
Names RAJENDRAN, R
RAJA, VS
SIVAKUMAR, R
SRINIVASA, RS
Date Issued 1995 (iso8601)
Abstract Chemical vapour deposition of zirconia was carried out on yttria-stabilized zirconia based thermal barrier coating to close down the surface pores. Scanning electron micrographs of the surface and the cross-section indicate that the surface cracks and pores could be closed and that the deposited layer penetrates the plasma-sprayed yttria-stabilized zirconia layer. The interconnected porosity, determined by the measurement of diffusion current density in 5% NaCl solution, was found to be reduced to about 98% even by a 10 mu m thick overlayer.
Genre Note
Topic Porosity
Identifier SURFACE & COATINGS TECHNOLOGY,73(3)198-200