As operating temperatures of engines or turbines continually increase for higher efficiency, significant amounts of researches have been focused on finding new materials, which would be alternatives to conventional yttria-stabilized zirconia (YSZ) for thermal barrier coatings (TBCs). In this study, phase evolution and thermo-physical properties of pyrochlore systems are investigated for TBC applications. systems are comprised by selecting as A-site ions and as B-site ions in pyrochlore structures. For the developed phases in compositions, thermo-physical properties such as thermal conductivity, thermal expansion coefficient are examined. The potential of these compositions for TBC application is also discussed.

• 김성원 | Kim Seong-Won
• 이성민 | Lee Sung-Min
• 오윤석 | Oh Yoon-Suk
• 김형태 | Kim Hyung-Tae
• 장병국 | Jang Byung-Koog