Effect of Excess PbO Addition on Sintering and Piezoelectric Characteristics in Pb(Ni1/3Nb2/3)O3-PbTiO3-PbZrO3 System

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J. Korean Ceram. Soc. > Volume 26(4); 1989 > Article

Journal of the Korean Ceramic Society 1989;26(4): 568.

PbO 과잉량이 Pb(Ni1/3Nb2/3)O3-PbTiO3-PbZrO3계의 소결 및 압전특성에 미치는 영향

전구락, 김정주¹, 조상희¹, 김도연²

경북대학교 전자공학과
¹경북대학교 재료공학과
²서울대학교 무기재료공학과

Effect of Excess PbO Addition on Sintering and Piezoelectric Characteristics in Pb(Ni1/3Nb2/3)O3-PbTiO3-PbZrO3 System

ABSTRACT

Effect of PbO addition on sintering and piezoelectric properties at 0.45Pb(Ni1/3Nb2/3)O3-0.40PbTiO3-0.15PbZrO3 composition which is tetragonal phase was investigated. In this composition, Porosity and dielectric constant were increased with excess PbO addition, but Kp and d31 was not changed. These variation of physical properties could be interpreted as composition change of solid grains from tetragonal to MPB region due to amount of PbO-rich liquid changing.