상용 이트리아 안정화 정방정 지르코니아 분말의 소결 물성

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윤유현 이종국
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Commercial Zirconia Powder Yttria-stabilized Tetragonal Zirconia Polycrystals Sintered Properties
Tetragonal zirconia polycrystals (Y-TZP) with 3 to 5 mol% of yttria are mainly used as a dental zirconia implant material. For good mechanical properties and thermal stability, high sintered density over 99.5% and the particle size under 0.3 ㎛ are required. In this study, commercially available 3Y-TZP powders for zirconia implants were analyzed, and investigated the sintered properties, for examples, phase composition, sintered density, and microstructural evolution. The primary particles and granules of the commercial 3Y-TZP powders showed the different morphology and size, depending on the powder manufacturing company, and powder type caused the difference of phase composition, sintered density and microstructure. After the sintering at 1500℃ for 2 hours, each specimen showed a particle size of 0.23~0.33 ㎛, which was suitable for implant materials, but the sintered density varied from 98.5% to 99.3%.
Alternative Title
Sintered properties of commercial yttria-stabilized tetragonal zirconia polycrystals
Alternative Author(s)
Yu-Hyeon Yun Jong-Kook Lee
조선대학교 공학기술연구원
윤유현. (2020). 상용 이트리아 안정화 정방정 지르코니아 분말의 소결 물성, 공학기술논문지 | Vol.13, No.1 p.15 ~ p.19
Laboratory article
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2020 > Vol.13, No.1
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