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J. Korean Ceram. Soc. > Volume 30(8); 1993 > Article
Journal of the Korean Ceramic Society 1993;30(8): 635.
동축형 공진기용 $(PbCa)ZrO_3$ 분말의 합성
이병하, 이경희, 윤성화
명지대학교 공과대학 무기재료공학과
Preparation of Fine-particle $(PbCa)ZrO_3$ for Resonator
To obtain a higher dielectric constant material, we investigated Ca substitution for Pb in PbZrO3. In this study, the four mixtures of (Pb0.68Ca0.32)ZrO3, (Pb0.65Ca0.37)ZrO3, (Pb0.63Ca0.37)ZrO3, and (Pb0.60Ca0.40)ZrO3 were prepared by coprecipitation reaction of Pb(NO3)2, ZrOCl2, and CaCl2 with (NH4)2CO3 and NH4OH in aqueous solution. The (Pb1-xCax)ZrO3 with different x mole fractions (x=0.35, 0.37) showed not only high dielectric constant, but also high Q values and low temperature coefficient of the capacitance.
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