首页|Materials design and characterization of (Bi_(1/2)Na_(1/2))TiO_3-Bi(B',B")O_3 ceramics
Materials design and characterization of (Bi_(1/2)Na_(1/2))TiO_3-Bi(B',B")O_3 ceramics
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NETL
NSTL
Trans Tech Publications Ltd
0.995(Bi_(1/2)Na_(1/2))TiO_3-0.005Bi(S',B")O_3 solid-solution ceramics (B',B" denote Zn, Mg, Ni, Ti, Nb) were fabricated and their ferroelectric properties were investigated. Based on the structural characteristics of Bi(B',B")O_3 analyzed by first-principles calculations, a materials design for obtaining a large piezoelectric strain is proposed: an index Z= P_s·(ε_(33)~*·s_(33))~(1/2), where P_s is spontaneous polarization, ε_(33)~* is relative permittivity and s_(33) is elastic compliance. A positive correlation was observed between Z and effective piezoelectric constant d_(33)~* observed for strain measurements.
NETL
NSTL
Trans Tech Publications Ltd
