欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用传统的固相烧结工艺制备了铁电／铁磁复合材料，组分为（1-x）NiFe2O4＋xPbZr0.52Ti0.48O3（其中x=0．5，0．6，0．7，0．8）。利用XRD和背散射电子像分析了复合材料的相成分，结果表明，复合材料由铁电相和铁磁相组成，无杂相生成。通过测量电阻率及压电性能得出复合材料的最佳烧结温度约为1220℃。介电温谱研究表明，相变温度约为390℃，且不随频率变化，是铁电到顺电的相变。电滞回线呈束腰特征，剩余极化强度较小，随铁电体含量的增加剩余极化强度增大，铁电性加强。
英文摘要：
A group of ferroelectric and ferrite composites with composition （ 1 - x） NiFe2O4 ＋ xPbZr0. 52 Ti0.48 O3 （where x= 0.5,0.6,0.7,0.8） was prepared by the standard ceramic reaction method. XRD and SEM revealed a ferroelectric phase and ferrite phase without any other phase. The investigation of resistivity and piezoelectric coeffi cient showed the best sintering temperature was 1 220℃. The dependence of dielectric constant with temperature had been studied. The Curie temperature was about 390 ℃ without any change at all studied frequencies. The phase transition of composite was the ferroelectric to the paraelectric phase transition. The hysteresis loop appeared a phenomenon of double hysteresis loop. The remnant polarization of the composites was lower. With the increase content of the ferroelectric phase,the remnant polarization increased, and the ferroelectric properties also enhanced.
同期刊论文项目
同项目期刊论文
期刊信息
位置：