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Effect of Composition of Bond Coating on the Durability of the Plasma Sprayed $ extrm{ZrO}_2$-$ extrm{CeO}_2$-$ extrm{Y}_2 extrm{O}_3$ Thermal Barrier Coating
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  • Effect of Composition of Bond Coating on the Durability of the Plasma Sprayed $ extrm{ZrO}_2$-$ extrm{CeO}_2$-$ extrm{Y}_2 extrm{O}_3$ Thermal Barrier Coating
  • Effect of Composition of Bond Coating on the Durability of the Plasma Sprayed $ extrm{ZrO}_2$-$ extrm{CeO}_2$-$ extrm{Y}_2 extrm{O}_3$ Thermal Barrier Coating
저자명
김혜성,김병희,서동수,Kim. Hye-Seong,Kim. Byeong-Hui,Seo. Dong-Su
간행물명
한국재료학회지
권/호정보
1999년|9권 1호|pp.73-80 (8 pages)
발행정보
한국재료학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

The effect of alloy compositions of the bond coating on the plasma sprayed-thermal barrier coatings was investigated. The performance of the coating composed of Rene80/NiCrAl/ZrO$_2$-CeO$_2$-Y$_2$O$_3$ and Rene80/CoNiCrAlY/ZrO$_2$-CeO$_2$-Y$_2$O$_3$was evaluated by isothermal and thermal cyclic test in an ambient atmosphere at 115$0^{circ}C$. The failure of Rene80/NiCrAl/ZrO$_2$-CeO$_2$-Y$_2$O$_3$ coatings was occurred at the bond coating/ceramic coating interface while Rene80/CoNiCrAlY/ZrO$_2$-CeO$_2$-Y$_2$O$_3$ coating was failed at the substrate/bond coating interface after thermal cyclic test. The lifetime of Rene80/NiCrAl/ZrO$_2$-CeO$_2$-Y$_2$O$_3$coatings was longer than Rene80/CoNiCrAlY/ZrO$_2$-CeO$_2$-Y$_2$O$_3$coating. The oxidation rate of the NiCrAl bond coating examined by TGA was lower than CoNiCrAlY bond coatings. In summary, these results suggest that Rene80/CoNiCrAlY/ZrO$_2$-CeO$_2$-Y$_2$O$_3$system as thermal barrier coating be not suitable considering the durability of the coating layer for high temperature oxidation and thermal stress.