Thermal Cycle Damage Behavior of Thermal Barrier Coating System by Suspension Plasma Spraying
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- MATSUURA Satoshi
- Graduate School of Engineering, Chiba University
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- YAMAZAKI Yasuhiro
- Chiba University
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- NAGAI Masaya
- TOCALO Corporation
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- HABU Youichirou
- TOCALO Corporation
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- NAGAO Mikako
- TOCALO Corporation
Bibliographic Information
- Other Title
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- サスペンションプラズマ溶射遮熱コーティングの熱サイクル損傷挙動
Description
<p>Thermal barrier coatings (TBCs), consisting of a ceramic insulating top coat (TC) and metal bond coat, have been widely used in gas turbines to protect hot section metal alloy components. In general, TC is deposited by atmospheric plasma spraying (APS) method or by electron beam physical vapor deposition (EB-PVD) one . APS method provides a porous TC which has lower thermal conductivity compared with EB-PVD TBC. On the other hand, EB-PVD TBC has columnar microstructure resulting in higher resistant to thermal shock than APS TBC. Suspension plasma spraying (SPS), as a newly emerged technique, is used to deposit coatings with enhanced characteristics utilizing suspensions containing submicron spray particles. However, there are few reports of damage behavior of SPSed TBC system. In this study, the high temperature oxidation test and thermal cycle fatigue test were carried out on SPSed TBC and damage behavior was investigated comparing with APSed TBC. It was revealed form the experimental results that there were differences in the thermally grown oxide (TGO) growth behavior and damage behavior between both coatings. In particular, the TGO growth behavior suggested the superiority of coating life of SPSed TBC.</p>
Journal
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- The Proceedings of the Materials and Mechanics Conference
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The Proceedings of the Materials and Mechanics Conference 2018 (0), GS0705-, 2018
The Japan Society of Mechanical Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1390845713078781312
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- NII Article ID
- 130007667421
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- ISSN
- 24242845
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed