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J. Korean Ceram. Soc. > Volume 24(3); 1987 > Article
Journal of the Korean Ceramic Society 1987;24(3): 263.
Pb(Mg1/3Nb2./3)O3-PbTiO3-PbZrO3계에 Yttria 첨가시 미세구조와 전기적 물성변화에 관한 연구
김창삼, 이응상
한양대학교 공과대학 무기재료공학과
Microstructure and Electrical Properties of Pb(Mg1/3Nb2./3)O3-PbTiO3-PbZrO3 Ceramics Modified with Yttria
It is investigated that the determination of the correlation between the change of microstructure and electrical properties. Yttria is added to the compositiojn of rhombohedral region in Pb(Mg1/3Nb2./3)O3-PbTiO3-PbZrO3 ternary system. Average grian size, lattice parameters and distribution of yttrium are characterized by XRD, SEM and EDS. Electrical properties are determined by measurement of Curie temperature, piezoelectric properties and hysteresis loops. The results are as follows; 1. Both lattice parameters, a and ${alpha}$, are changed by addition of yttria to the composition of rhomboheadral region in Pb(Mg1/3Nb2./3)O3-PbTiO3-PbZrO3 ternary system and Curie temperature is proportional to the values at (90-${alpha}$).
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