| 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 |
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| ABSTRACT |
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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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