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Journal of the Korean Ceramic Society 1995;32(8): 938. |
$(1-y)Pb(Mg_{(1-x)/3}Zn_{x/3}Zn_{x/3}Nb_{2/3})O_3-yBaTiO_3$ 세라믹스의 구조 및 유전 성질 |
홍영식, 박휴범, 김시중 |
고려대학교 화학과 |
Structural and Dielectric Properties of $(1-y)Pb(Mg_{(1-x)/3}Zn_{x/3}Zn_{x/3}Nb_{2/3})O_3-yBaTiO_3$Ceramics |
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ABSTRACT |
Dielectric properties and the stabilization of perovskite phase for the (1-y)Pb(Mg(1-x)/3Znx/3Znx/3Nb2/3)O3-yBaTiO3 ((1-y)PM1-xZxN-yBT) ceramics have been investigated as a function of amount of x and y. In the (1-y)PM0.6Z0.4N-yBT ceramics, the amount of pyrochlore phae was decreased by the addition of 2 mol% BT and the dielectric constant was increased. However, the dielectric constant decreased with further addition of BT even though pyrochlore phase was decreased. Dielectric prooperties in (1-y)PM0.6Z0.4N-yBT ceracmis were affected by the character of the BT rather than the amount of pyrochlore phase. The phase transitions were broadened and phase transition temperatures were lowered by the increase of BT contents. |
Key words:
$(1-y)Pb(Mg_{(1-x)/3}Zn_{x/3}Zn_{x/3}Nb_{2/3})O_3-yBaTiO_3$, Dielectric property |
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