Journal
SURFACE & COATINGS TECHNOLOGY
Volume 142, Issue -, Pages 835-842Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0257-8972(01)01211-7
Keywords
growth models; structural zones 1,2,T; scanning electron microscopy (SEM); X-ray diffraction; plasma-assisted chemical vapour deposition (PACVD); zirconium oxide
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Thick, partially yttria-stabilised zirconia coatings have been deposited by PECVD. Evolution of the morphology and phase composition has been studied as a function of the annealing temperature and duration (1100-1400 degreesC, for up to 1000 h). The as-deposited columnar morphology is similar to EBPVD and in good agreement with the PVD structural zone models. Evolution of the phase composition follows the phase diagram. The overall thermal stability observed is encouraging for TBC applications. (C) 2001 Elsevier Science BN. All rights reserved.
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