Influence of subsurface layer on the indentation damage behavior of YSZ thermal barrier coating layers deposited by electron beam physical vapor depositionopen access전자 빔 물리적 증착(EB-PVD)법으로 코팅된 YSZ 열차폐층의 압흔손상 거동에 대한 하부층의 영향
- Other Titles
- 전자 빔 물리적 증착(EB-PVD)법으로 코팅된 YSZ 열차폐층의 압흔손상 거동에 대한 하부층의 영향
- Authors
- Heo, Yong Suk; Park, Sang Hyun; Han, In Sub; Woo, Sang Kuk; Jung, Yeon Gil; Paik, Ungyu; Lee, Kee Sung
- Issue Date
- Sep-2008
- Publisher
- Korean Ceramic Society
- Keywords
- Indentation; Subsurface; Thermal barrier coating; Yttria stabilized zirconia
- Citation
- Journal of the Korean Ceramic Society, v.45, no.9, pp.549 - 555
- Indexed
- SCOPUS
KCI
- Journal Title
- Journal of the Korean Ceramic Society
- Volume
- 45
- Number
- 9
- Start Page
- 549
- End Page
- 555
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/177939
- DOI
- 10.4191/KCERS.2008.45.9.549
- ISSN
- 1229-7801
- Abstract
- 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, Al2O3 or NiCrCoAlY 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.
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