| 전자 빔 물리적 증착(EB-PVD)법으로 코팅된 YSZ 열차폐층의 압흔손상 거동에 대한 하부층의 영향 |
| 허용석, 박상현, 한인섭1, 우상국1, 정연길2, 백운규3, 이기성 |
국민대학교 기계자동차공학부
1한국에너지기술연구원 융복합재료연구센터
2창원대학교 나노신소재공학부
3한양대학교 신소재공학부 |
| Influence of Subsurface Layer on the Indentation Damage Behavior of YSZ Thermal Barrier Coating Layers Deposited by Electron Beam Physical Vapor Deposition |
| Yong-Suk Heo, Sang-Hyun Park, In-Sub Han1, Sang-Kuk Woo1, Yeon-Gil Jung2, Un-Gyu Paik3, Kee-Sung Lee |
School of Mechanical and Automotive Engineering, Kookmin University
1Convergence Materials Research Center, Korea Institute of Energy Research
2School of Nano & Advanced Materials Engineering, Changwon National University
3Division of Advanced Materials Science Engineering, Hanyang University |
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| ABSTRACT |
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The thermal barrier coating must withstand erosion when subjected to flowing gas and should also maintain good stability and mechanical properties while it must also protect the turbine component from high temperature, hot corrosion, creep, and oxidation during operation. In this study we investigated the influence of subsurface layer, $Al_2O_3$ or NiCrCoAIY bond coat layer, on the indentation damage behavior of YSZ thermal barrier coating layers deposited by electron beam physical vapor deposition (EB-PVD). The bond coat is deposited using different process such as air plasma spray (APS) or spray of high velocity oxygen fuel (HVOF) and the thickness is varied. Hertzian indentation technique is used to induce micro damages on the coated layer. The stress-strain behaviors are characterized by results of the indentation tests. |
| Key words:
Thermal barrier coating, Indentation, yttria stabilized zirconia, Subsurface |
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