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전자빔을 이용한 물리기상증착법으로 제조된 열차폐용4 mol% YSZ 코팅의 내열특성Thermal Durability of 4YSZ Thermal Barrier Coating Deposited by Electron Beam PVD
- Other Titles
- Thermal Durability of 4YSZ Thermal Barrier Coating Deposited by Electron Beam PVD
- Issue Date
- 2013
- Publisher
- 한국분말야금학회
- Keywords
- Electron Beam Physical Vapor Deposition(EB-PVD); Yttria Stabilized Zirconia(YSZ); Thermal Barrier Coating(TBC); Thermal Cyclic Fatigue
- Citation
- 한국분말야금학회지, v.20, no.6, pp.460 - 466
- Indexed
- KCI
- Journal Title
- 한국분말야금학회지
- Volume
- 20
- Number
- 6
- Start Page
- 460
- End Page
- 466
- ISSN
- 1225-7591
- Abstract
- 4 mol% Yttria-stabilized zirconia (4YSZ) coatings with 200 μm thick are fabricated by Electron Beam Physical Vapor Deposition (EB-PVD) for thermal barrier coating (TBC). 150 μm of NiCrAlY based bond coat is prepared by conventional APS (Air Plasma Spray) method on the NiCrCoAl alloy substrate before deposition of top coating. 4 mol% YSZ top coating shows typical tetragonal phase and columnar structure due to vapor phase deposition process. The adhesion strength of coating is measured about 40 MPa. There is no delamination or cracking of coatings after thermal cyclic fatigue and shock test at 850oC.
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