Journal of Inorganic Materials

• Research Paper • Previous Articles     Next Articles

Preparation of Lead Lanthanum Zirconate Titanate Stannate Ceramics by Partial Chemical Method and Its Electric Field Induced Strain

CHEN Ming; YAO Xi; ZHANG Liang-Ying   

  1. Functional Material Research Laboratory; Tongji University; Shanghai 200092; China
  • Received:2001-05-07 Revised:2001-06-11 Published:2002-05-20 Online:2002-05-20

Abstract: A partial chemical method was developed for the synthesis of PbNb(Zr,Sn,Ti)O3 antiferroelectric ceramics. Single perovskite phase was formed in the precursor
calcined at 600℃ for 2h and a submicron particle size distribution of calcined powder was achieved by planetary ball milling. Average grain size about
4μm and relative density greater than 97% were obtained from samples prepared by a tape-casting method and sintered at 1100℃ for 4h. In samples with
composition of Pb0.99Nb0.02[(Zr0.6Sn0.4)1-yTiy]0.98O3, there shows a increase of dielectric constant and a trend of transition from antiferroelectric
state to ferroelectric state with the increase of Ti content. A strain curve with maximum longitude strain of 0.33% under 6kV/mm electric field was measured from
samples with composition of y=0.06.

Key words: partial chemical method, antiferroelectric ceramics, electric field induced strain

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