Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Dielectric Properties of Pb($Fe_{1/2}Nb_{1/2}$)$O_3$ with $MnO_2$ Prepared by Molten Salt Synthesis Method

용융염 합성법에 의한 $MnO_2$가 첨가된 Pb($Fe_{1/2}Nb_{1/2}$)$O_3$의 유전성

  • 박경봉 (연세대학교 공과대학 요업공학과) ;
  • 윤기현 (연세대학교 공과대학 요업공학과)
  • Published : 1991.01.01
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Abstract

The effects of MnO2 on the microstructure and dielectric properties of Pb(Fe1/2Nb1/2)O3 ceramics prepared by KCl-NaCl molten salt synthesis(MSS) method have been investigated. As the amount of MnO2 increased up to 0.25wt%, the density increased and the grain size decreased, while above 0.25wt%, the density decreased with the grain growth. Dielectric constant increased with increasing the amount of MnO2, and dielectric loss decreased up to 0.25wt% and then increased. This is due to the compensation effect by the substitution of Mn4+ to Fe3+ and the appearance of the second phase.

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References

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