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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국진공학회(ASCT) Applied Science and Convergence Technology Applied Science and Convergence Technology Vol.24 No.6
- 발행연도
- 2015.11
- 수록면
- 224 - 227 (4page)
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Ferroelectric Pb₂(Sc,Nb)O<SUB>6</SUB> were prepared under two different sintering conditions using the oxide mixing method and the electrical properties were measured. The sintering conditions were 1350℃ for 25 minutes and 1400℃ for 20 minutes. EDX spectroscopy and XRD were used to determine the crystalline characteristic of the Pb₂(Sc,Nb)O<SUB>6</SUB> compositions Pyrochlore phase showed about 2% in all Pb₂(Sc,Nb)O<SUB>6</SUB> specimens. It expands the growth of crystals in samples sintered at 1400℃ than 1350℃, but all samples were the optimal crystallization. The temperature and frequency dependence of the complex dielectric constant and admittance were measured to analyze the electrical properties. The high dielectric constant of the specimens reflects the good stoichiometry and crystallization. The maximum value of the dielectric constant in the two specimens treated with sintering at 1350℃ and 1400℃ were more than 27,000, and the dielectric loss at room temperature is smaller than 0.05. The maximum dielectric constant decreased with increasing frequency, the transition temperature also increased in Pb₂(Sc,Nb)O<SUB>6</SUB> compositions. The admittance and susceptance values reach a peak at all temperatures, and the magnitude of the peak increases with increasing measuring temperature. Strong frequency dependent of maximum admittance, susceptance, dielectric constant and dielectric loss were observed.
목차
Abstract
Ⅰ. Introduction
Ⅱ. Experimental Procedure
Ⅲ. Results and Discussion
Ⅳ. Conclusions
References
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UCI(KEPA) : I410-ECN-0101-2019-420-001275911