Zirconia-Frit composites의 소결 및 물성에 미치는 MgO 첨가의 효과
Effect of MgO Addition Affecting in Zirconia-Frit Composites’ Sintering and Properties of Matter
권은자, 이규선,
소속 상세정보
권은자 ( Kwon Eun-Ja ) - 혜전대학 치기공과
이규선 ( Lee Gyu-Sun ) - 동남보건대학 치기공과
KMID : 0362120100320010009
Abstract
This study sought to apply different MgO additions to Zirconia (20wt % Frit) and thereby determine its mechanical properties depending upon variation of temperature, as a part of elementary study. First, in terms of sintering density depending on sintering conditions, it was found that sintering density increased as temperature varied from to . As the addition of MgO increased, it was found that sintering density tended to decrease at each temperature. For the maximum sintering density obtained from pellet, it was found that 3wt% MgO addition specimens sintered at had its maximum sintering density as high as 97.39%. This study measured mechanical properties of these specimens, and it was found that their bending strength tended to decrease as the content of MgO addition increased. And it was found that their bending strength reached up to 162 MPa when 3wt% MgO was added to them for sintering process at . It was also found that those specimens had Vickers microhardness up to 4.6 GPa when 5wt% MgO was added to them for sintering process at .
키워드
Bending strength; Sintering density; Vickers microhardness; Zirconia
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