期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 31, 期 15, 页码 2923-2929出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2011.07.022
关键词
Porosity; ZrO(2); Residual stress; Microstructure; Thermal barrier coatings
资金
- Sulzer Metco
- Cambridge European Trust
- EPSRC
Thick (similar to 1.2 mm) thermal barrier coatings (TBCs) consisting of YSZ were deposited by plasma spraying. Spraying parameters were varied in a controlled manner to produce different microstructures. The effect of substrate temperature on the microstructural features and subsequently on the Young's modulus was investigated. In addition, the residual stresses in the coatings were estimated using a numerical model and they were related to the microstructural features observed. Results showed that crack segmentation density, residual stresses in the coatings and thus coating properties are strongly affected not only by the average substrate temperature during spraying but also the variations between the minimum and maximum substrate temperature. (C) 2011 Elsevier Ltd. All rights reserved.
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