Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Reaction Mechanism in the Formation of PMN-PT-BT Solid Solution

PMN-PT-BT 고용체의 합성반응기구

  • Park, Hyun (Dept. of Inorganic Materials Hanyang University) ;
  • Lee, Eung-Sang (Dept. of Inorganic Materials Hanyang University)
  • 박현 (한양대학교 무기재료공학과) ;
  • 이응상 (한양대학교 무기재료공학과)
  • Published : 1994.12.01
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Abstract

Pb(Mg1/3Nb2/3)O3-PbTiO3-BaTiO3 solid solution was formed by mixed-oxide method. The phase during formation was analysed by XRD and formation mechanism was investigated. While heat-treating Pb(Mg1/3Nb2/3)O3 composition, the first, Pb2Nb2O7 and Pb3Nb2O8 pyrochlore phases are formed, and finally Pb(Mg1/3Nb2/3)O3 perovskite phase with containing Pb3Nb4O13 pyrochlore phase is obtained at 80$0^{\circ}C$. When Pb(Mg1/3Nb2/3)O3 composition is modified with PbTiO3 which have strong ionic bonding and high tolerance factor, the amount of pyrochlore phase is decreased by increasing of stability in perovskite structure.

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References

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