Design of thermal barrier coatings using gadolinium zirconate ceramics : A study on gadolinium zirconate/YSZ bilayers
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概要
- 論文の詳細を見る
FEM analysis and experiments are undertaken in this study for designing double ceramic-layered thermal barrier coatings (TBCs) to improve the resistance of coating layers to mechanical percussion. Double-coating layers, which comprise of a thermally insulating, Gd2Zr2O7-based layer upon a thermally adjustable, YSZ layer, are analyzed and designed with reference to indentation stress, and deposited by electron beam physical vapor deposition (EB-PVD). Additional analysis is also performed to find the optimal coating thickness. Linear elastic behaviors are assumed for the analysis, and the indentation stress-strain curves of the double-layer TBCs are compared with those of single-layer TBCs. The results from FEM analysis and experiments that use the Hertzian indentation technique indicate the advantage of double-layered TBCs for alleviating stress.
- 公益社団法人 日本セラミックス協会の論文
- 2009-05-01
著者
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KIM Tae
School of Architectural, Civil and Environment Engineering, Kumoh National University of Technology
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Lee Kee
School Of Mechanical And Automotive Engineering Kookmin University
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Lee Kee
School Of Mechanical And Automotive Engineering Kookmin Univ.
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Kim Tae
School Of Mechanical And Automotive Engineering Kookmin University
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LEE Daehyung
School of Mechanical and Automotive Engineering, Kookmin University
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Lee Kee
School Of Computer And Information Engineering Inha University
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Lee Daehyung
School Of Mechanical And Automotive Engineering Kookmin University
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Kim Tae
School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, Gyeonggi 440-746, Korea
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