Yttria-stabilized zirconia (YSZ) coatings are fabricated via suspension plasma spray (SPS) for thermal barrier applications. Three different suspension sets are prepared by using a planetary mill as well as ball mill in order to examine the effect of starting suspension on the phase evolution and the microstructure of SPS prepared coatings. In the case of planetary-milled commercial YSZ powder, a deposited thick coating turns out to have a dense, vertically-cracked microstructure. In addition, a dense YSZ coating with fully developed phase can be obtained via suspension plasma spray with suspension from planetary-milled mixture of Y2O3 and ZrO2.

• 이원준(한국세라믹기술원 이천분원 엔지니어링세라믹센터, 고려대학교 신소재공학과) | Won-Jun Lee
• 권창섭(한국세라믹기술원 이천분원 엔지니어링세라믹센터) | Chang-Sup Kwon
• 김성원(한국세라믹기술원 이천분원 엔지니어링세라믹센터) | Seongwon Kim Corresponding Author
• 오윤석(한국세라믹기술원 이천분원 엔지니어링세라믹센터) | Yoon-Suk Oh
• 김형태(한국세라믹기술원 이천분원 엔지니어링세라믹센터) | Hyung-Tae Kim
• 임대순(고려대학교 신소재공학과) | Dae-Soon Lim