Thermal cycling behavior of La2Ce2O7/8YSZ double-ceramic-layer thermal barrier coatings prepared by atmospheric plasma spraying

La2Ce2O7/8YSZ double-layer thermal barrier coatings (TBCs), prepared by atmospheric plasma spraying (APS), had a much longer lifetime compared with the single layer La2Ce2O7 system under the burner rig test. The double-layer coating structure design effectively alleviated the thermal expansion misma...

Full description

Saved in:
Bibliographic Details
Published in:Surface & coatings technology 2010-08, Vol.204 (21-22), p.3366-3370
Main Authors: Ma, Wen, Dong, Hongying, Guo, Hongbo, Gong, Shengkai, Zheng, Xuebin
Format: Article
Language:English
Subjects:
Applied sciences
Atmospherics
Bonding
Coatings
Cross-disciplinary physics: materials science
rheology
Design engineering
Exact sciences and technology
Failure mechanisms
Materials science
Metals. Metallurgy
Nonmetallic coatings
Physics
Plasma spraying
Production techniques
Sintering
Surface treatment
Surface treatments
Thermal barrier coatings
Thermal cycling
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:La2Ce2O7/8YSZ double-layer thermal barrier coatings (TBCs), prepared by atmospheric plasma spraying (APS), had a much longer lifetime compared with the single layer La2Ce2O7 system under the burner rig test. The double-layer coating structure design effectively alleviated the thermal expansion mismatch between the La2Ce2O7 coating and the bondcoat. The failure mechanism of the La2Ce2O7/8YSZ double-layer coating was mainly due to sintering the La2Ce2O7 coating surface during thermal cycling.
ISSN:0257-8972
1879-3347
DOI:10.1016/j.surfcoat.2010.03.053