Properties of PECVD-deposited thermal barrier coatings

被引:33
作者
Préauchat, B [1 ]
Drawin, S [1 ]
机构
[1] Off Natl Etud & Rech Aerosp, Met Mat & Proc Dept, F-92322 Chatillon, France
关键词
growth models; structural zones 1,2,T; scanning electron microscopy (SEM); X-ray diffraction; plasma-assisted chemical vapour deposition (PACVD); zirconium oxide;
D O I
10.1016/S0257-8972(01)01211-7
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
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.
引用
收藏
页码:835 / 842
页数:8
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