In this work,Ba1−xCaxTi_(0.88)Zr_(0.12)O_(3)(x=0.00-0.25)ceramics were prepared by a solid-state reaction method,and the variation of dielectric,ferroelectric and piezoelectric characteristics has been investigated to...In this work,Ba1−xCaxTi_(0.88)Zr_(0.12)O_(3)(x=0.00-0.25)ceramics were prepared by a solid-state reaction method,and the variation of dielectric,ferroelectric and piezoelectric characteristics has been investigated together with the structure evolution.The crystal structure varies from rhombohedral to tetragonal at room-temperature and the morphotropic phase boundary(MPB)is determined around x=0.10,where the significantly enhanced ferroelectric and piezoelectric properties are achieved.With the increase of Ca content,the system gradually evolves into a relaxor ferroelectric.This work provides useful guidance for future research on lead-free piezoelectric materials.展开更多
基金This work was financially supported by National Natural Science Foundation of China under Grant No.51790493.
文摘In this work,Ba1−xCaxTi_(0.88)Zr_(0.12)O_(3)(x=0.00-0.25)ceramics were prepared by a solid-state reaction method,and the variation of dielectric,ferroelectric and piezoelectric characteristics has been investigated together with the structure evolution.The crystal structure varies from rhombohedral to tetragonal at room-temperature and the morphotropic phase boundary(MPB)is determined around x=0.10,where the significantly enhanced ferroelectric and piezoelectric properties are achieved.With the increase of Ca content,the system gradually evolves into a relaxor ferroelectric.This work provides useful guidance for future research on lead-free piezoelectric materials.
