CAJ | 학술논문

采用高温固相法制备出Ba（Zr0．06Ti0．94）O3－x％BiFeO3（x＝0．2，0．4，0．6，0．8）系列复合陶瓷，并研究了其相结构、介电、铁电和压电性质．XRD结果表明，所有样品均呈现典型的钙钛矿四方相结构，而样品的晶格常数随着BiFeO3的含量改变发生了一定变化．介电－温度图谱表明，复合陶瓷的相变温度和介电常数都受到了BiFeO3成分影响，室温介电常数随着BiFeO3含量的增加不断增大，并且复合陶瓷中存在弥散相变．所有样品均显示出明显的铁电与压电特性，并且随着BiFeO3含量变化，两种特性呈现出相同的变化趋势．
채용고온고상법제비출Ba（Zr0．06Ti0．94）O3－x％BiFeO3（x＝0．2，0．4，0．6，0．8）계렬복합도자，병연구료기상결구、개전、철전화압전성질．XRD결과표명，소유양품균정현전형적개태광사방상결구，이양품적정격상수수착BiFeO3적함량개변발생료일정변화．개전－온도도보표명，복합도자적상변온도화개전상수도수도료BiFeO3성분영향，실온개전상수수착BiFeO3함량적증가불단증대，병차복합도자중존재미산상변．소유양품균현시출명현적철전여압전특성，병차수착BiFeO3함량변화，량충특성정현출상동적변화추세．
Ba(Zr0.06Ti0.94)O3-x%BiFeO3(with x=0.2,0.4,0.6,0.8) composite ceramics were pre-pared by the traditional solid-state reaction method.The structural, dielectric, ferroelectric and piezoe-lectric properties of the ceramics were investigated.XRD results show that all the ceramics show typical tetragonal perovskite structures, with various lattice parameters induced by different amounts of BiFeO3 concentration.The dielectric permittivity-temperature curve shows that, both the temperature of phase transition and the value of dielectric permittivity have been affected by the BiFeO3 concentration.It has been found that, at the room temperature, dielectric permittivity of the ceramics increases with the in-crease of the BiFeO3 concentration.And the diffuse phase transition has been observed in the ceramics. Besides, all samples show clear ferroelectric and piezoelectric characteristics, and these characteristics change in the same trends along with the BiFeO3 concentration.