Powder Properties of ZrO2-MgO System Prepared by Co-precipitation Method

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J. Korean Ceram. Soc. > Volume 26(1); 1989 > Article

Journal of the Korean Ceramic Society 1989;26(1): 109.

공침법으로 제조한 ZrO2-MgO계 분말특성

이형복, 정윤중, 김영규, 이홍림¹

명지대학교 무기재료공학과
¹연세대학교 요업공학과

Powder Properties of ZrO2-MgO System Prepared by Co-precipitation Method

ABSTRACT

The properties of the powders of ZrO2-MgO system prepared by co-precipitation method using ZrOCl2.8H2O and MgCl2.6H2O as starting materials were investigated after calcination from $600^{circ}C$ to 120$0^{circ}C$. The crystallization temperature of amorphous ZrO2 was increased as MgO contents increased. The crystallite size of ZrO2 was increased with increasing calcination temperature. The crystallite size of tetragonal ZrO2 calcined at 100$0^{circ}C$ for 1hr wa about 45nm, and MgO contributed effectively to promoting stability of tetragonal Zirconia.