摘要
xPb(In_(1/2)Nb_(1/2))O_(3)–yPb(Mg_(1/3)Nb_(2/3))O_(3)–zPbTiO_(3)(xPIN–yPMN–zPT)ternary ceramics with morphotropic phase boundary(MPB)composition were synthesized by columbite precursor method.xPIN–yPMN–zPT phase diagram was investigated by x-ray diffraction and dielectric measurements.According to the results of dielectric measurements,the Curie temperatures(Tc)and rhombohedral to tetragonal phase transition temperature(T_(r-t))were found to be in the range of 173–212℃and 114–155℃,respectively,indicating that the _(Tr-t) was increased with adding PIN component.In the MPB region,the highest T_(r-t)=155℃was found in 0.32PIN–0.38PMN–0.30PT ceramic,that greatly expanded temperature usage range.
基金
financially supported by International Science&Technology Cooperation Program of China(Grant Nos.2014DFR51240 and 2013DFR50470)
the Doctoral Fund of Ministry of Education of China(Grant No.20130201110010)
Science and technology research and development program of Shaanxi province(Grant No.2014KW08-01).
