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J. Korean Ceram. Soc. > Volume 43(10); 2006 > Article
Journal of the Korean Ceramic Society 2006;43(10): 640.
doi: https://doi.org/10.4191/kcers.2006.43.10.640
3Y-TZP의 기계적 특성에 미치는 산화물 조성 및 첨가제의 영향
박미정, 양성구1, 강종봉2
경남대학교 재료공학과
1경남대학교 공동기기센터
2경남대학교 신소재공학과
Effects of Composition and Additives on the Mechanical Characteristics of 3Y-TZP
Mi-Jung Park, Seong-Koo Yang1, Jong-Bong Kang2
Department of Materials Science and Engineering, Kyungnam University
1The Center for Instrumental Analysis in Kyungnam University
2Department of Advanced Materials Engineering, Kyungnam University
Monoclinic zirconia and yttria were mixed with a stoichiometric composition of 3Y-TZP (3 mol% Yttria-stabilized Tetragonal Zirconia Polycrystal). The specimen was sintered at 1350$sim$1450$^{circ}C$ and mechanical characterization and microstructure analysis were conducted. Microhardness and fracture toughness were shown as 1357.4 Hv and 8.56 MPa $m^{1/2}$. respectively. Without alumina, they were 1311 Hv and 10.02 MPa $m^{1/2}$ respectively. By mixing two different oxides, it was possible to obtain high values of microhardness and fracture toughness. It was possible that was turned out nano-scale particle using the co-milling of high mechanical energy.
Key words: Co-milling, 3Y-YZP, High-energy milling, Nano-scale particle
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