| 학회 |
한국재료학회 |
| 학술대회 |
2018년 가을 (11/07 ~ 11/09, 여수 디오션리조트) |
| 권호 |
24권 2호 |
| 발표분야 |
9. 한-일 재료공학 심포지엄(KMST 2018)-오거나이저: 권도균 교수(한국항공대) |
| 제목 |
Thermo-Corrosive and Mechanical Properties of ZrO2 based Thermal Barrier Coatings |
| 초록 |
Thermal barrier coatings (TBCs) have received a large attention because they increase the thermal efficiency of gas turbine engines by increasing the gas turbine inlet temperature and reducing the amount of cooling air required for the hot section components. Electron beam-physical vapor deposition (EB-PVD) or plasma spray coatings is a widely used technique for depositing thermal barrier coatings (TBCs) on metal substrates for high temperature applications, such as gas turbines, in order to improve the thermal efficiency. To optimize TBCs for integration into gas turbines, characterization of the relationship between microstructure and thermal-corrosive properties of the coatings is necessary. The corrosive properties of coatings were evaluated by the corrosive reaction between YSZ coatings by EB-PVD and volcanic ash during oxidation at 1200C. The thickness of corrosive region at top surface of YSZ TBCs by the reaction between YSZ coatings and volcanic ash was increased with increasing the oxidation time. In addition, the mechanical properties of YSZ TBCs were evaluated by nano indentation. |
| 저자 |
BYUNG-KOOG JANG |
| 소속 |
Interdisciplinary Graduate School of Engineering Sciences |
| 키워드 |
Thermal barrier coatings; ZrO<SUB>2</SUB>; EB-PVD; Volcanic ash; Nano indentation
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| E-Mail |
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