Variations of Reaction Sequence with Precusor Mixing Methods in the Formation of $Pb(Zn_{0.6}Mg_{0.4})_{1/3}Nb_{2/3}O_3$[PZMN]

$Pb(Zn_{0.6}Mg_{0.4})_{1/3}Nb_{2/3}O_3$[PZMN] 합성시 전구체 혼합방법에 따른 반응 경로변화

  • 김봉철 (경북대학교 무기재료공학과) ;
  • 김정주 (경북대학교 무기재료공학과) ;
  • 김남경 (경북대학교 무기재료공학과) ;
  • 조상희 (경북대학교 무기재료공학과)
  • Published : 1998.05.01

Abstract

Variations of reaction sequence of $Pb(Zn_{0.6}Mg_{0.4})_{1/3}Nb_{2/3}O_3$[PZMN] with precusor mixing methods were ex-amined using X-ray diffraction and dielectric characteristics. In the present study three different types of precursor mixing methods (oxide mixing PbO+$ZnNb_2O_6+MgNb_2O_6$[Zn+MN] and PbO+(Zn,Mg)$Nb_2O_6$[ZMN] precursor mixing) were adopted. When the oxide mixing method was used for the PZMN synthesis a Zn-rich perovskite phase and pyrochlore phase were formed. Compared with PbO+ZN+MN precursor mixing method the PbO-ZMN precursor led to a lowering of the formation temperature for perovskite sin-gle phase. These variation of composition and formation temperature of the perovskite phase were dis-cussed in terms of the difference in the solid-reaction requence between these three different types of pre-cursor mixing.

Keywords

References

  1. J.Am.Ceram.Soc. v.52 no.9 High-pressure Synthesis of Perovskite-type $Pb(Zn_{\frac{1}{3}}Nb_{\frac{2}{3}}O_3$ Y.Matsuo;H.Sasaki;S.Hayakawa;F.Kanamaru;M.Koizumi
  2. J.Am.Ceram.Soc. v.67 no.5 Dielectric Properties of Lead Magnesium Niobate Ceramics S.L.Swartz;T.R.Shrout;W.A.Schulze;L.E.Cross
  3. J Phys.Soc.Jpn. v.28 no.5 Ferroelelctric Properties of $Pb(Zn_{\frac{1}{3}}Nb_{\frac{2}{3}}O_3$ Y.Yokomitzo;T.Takahashi;S.Nomura
  4. Mat.Res.Bull. v.17 no.10 Fabrication of Perovskite Lead Magnesium Niobate S.L.Swartz;T.R.Shrout
  5. Am.Ceram.Soc.Bull. v.66 no.4 Stabilization of the Perovskite Phase and Dielectric Properties of Ceramics in the $Pb(Zn_{\frac{1}{3}}Nb_{\frac{2}{3}})O_3$-BaTiO₃System A.Halliyal;U.Kumar;R.E.Newnham;L.E.Cross
  6. Yogyo Kyokaishi v.94 no.6 Preparation and Several Properties of Ferroelectric Powder of $Pb(Mg,Zn)_{\frac{1}{3}}Nb_{\frac{2}{3}}O_3$(part1) F.Imoto;H.Takase;N.Kimura
  7. J.Am.Ceram.Soc. v.78 no.2 Mechanism of Formation of Perovskite Phase and Dielectric Properties of $Pb(Zn_{\frac{1}{3}}Nb_{\frac{2}{3}})O_3$ Ceramics Prepared by Columbite Precursor Routes H.M.Jang;S.R.Cho;K.M.Lee
  8. J.Am.Ceram.Soc. v.74 no.5 Formation of the Perovskite Phase in the $PbMg_{\frac{1}{3}}Nb_{\frac{2}{3}}O_3$-PbTiO₃System O Eouquin;M.Lejeune;J.P.Boilot
  9. Ferroelectrics v.5 Relaxation Polarization of $PbMg_{\frac{1}{3}}Nb_{\frac{2}{3}}O_3$ (PMN)-Ferroelectric with a Diffused Phase Transition V.V.Kirillov;V.A.Isupov
  10. J Am.Ceram.Soc. v.73 no.10 Diffuseness as a Useful Parameter for Relaxor Ceramics Steven M.Pilgrim;Audrey E.Sutherland;Stemphen R.Winzer
  11. J.Am.Ceram v.73 no.5 Order-Disorder Phenomenon in Lead-Scandium Tantalate H.Wang;W.A.Schulze
  12. Ferroelectrics v.76 Relaxor Ferroelectrics L.E.Cross