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INFLUENCE OF NONSTOICHIOMETRY AND DOPING ON ELECTRICAL PROPERTIES OF (Na1/2Bi1/2)0.92Ba0.08TiO3 CERAMICS

CHU BAO-JIN LI GUO-RONG YIN QING-RUI ZHANG WANG-ZHONG CHEN DA-REN

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INFLUENCE OF NONSTOICHIOMETRY AND DOPING ON ELECTRICAL PROPERTIES OF (Na1/2Bi1/2)0.92Ba0.08TiO3 CERAMICS

CHU BAO-JIN, LI GUO-RONG, YIN QING-RUI, ZHANG WANG-ZHONG, CHEN DA-REN
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  • Influence of nonstoichiometry and doping on piezoelectric properties and depolarization temperature of lead-free piezoelectric ceramics (Na1/2Bi1/2)0.92Ba0.08TiO3 was studied. Nonstoichiometry of A-site can improve their piezoelectric properties. Doping in B-site has great influence on electric properties, which is similar to the corresponding rules of Pb(Ti,Zr)O3-based ceramics. Variation of coupling effect of A-site cation on BO6 octahedra as results of nonstoichiometry, and the doping in NBBT ceramics leads to variations of the depolarization temperature. The higher the depolarization temperature of Na1/2Bi1/2 TiO3-BaTiO3 ceramics studied,the lower the piezoelectric constant.
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Publishing process
  • Received Date:  23 April 2001
  • Accepted Date:  13 May 2001
  • Published Online:  05 May 2001

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