摘要
笔者利用固相法成功制备出Bi_4Ti_3O_(12)(BIT)/Ni_(0.37)Cu_(0.20)Zn_(0.43)Fe_(1.92)O_(3.88)(NCZF)层状磁电复合陶瓷材料。系统研究了复合陶瓷材料的铁电、介电、磁性能,并通过XRD和SEM对复合陶瓷材料的相组成和断裂表面进行了研究。研究表明:铁电相和铁磁相可以共存且不会发生元素扩散;复合陶瓷材料的铁电性和铁磁性能够保持很好的独立性;随着铁磁相含量的增加,磁电耦合系数先增加后减小,复合陶瓷材料0.6BIT/0.4NCZF具有最大的磁电耦合系数58mV/cm Oe。
In this work, the laminated composite ceramics of Bi4Ti3O12（BIT）/Ni0.37Cu0.20Zn0.43Fe0.92O3.88（NCZF） were successfully synthesized via the solid--state sintering route to afford laminated composite ceramics KNNLT/CZFM. Systemic investigations were conducted on structure, electrical properties, magnetic properties and the magnetoelectric coupling effect by varying NCZF mass ratios. The phase composition and fracture surface of laminated composite ceramics were studied by X--ray diffraction （XRD） and scanning electron microscopy （SEM）. The results show that the BIT phase and NCZF phase can coexist in the composites. The ferroelectric and ferromagnetic of laminated composite ceramics can maintain good independence. It can be found that magnetoelectric coupling coefficient increases with increasing content of ferromagnetic phase, and 0.6BIT/0.4NCZF composite materials have the greatest magnetoelectric coupling coefficient of 58 mV/ cm Oe.
出处
《陶瓷》
CAS
2018年第2期35-40,共6页
Ceramics
基金
陕西省科技统筹创新工程计划项目(项目编号:2015KTTSGY02-01)
关键词
磁电复合陶瓷材料
铁电性能
铁磁性能
磁电耦合性能
Magnetoelectric composite ceramics
Laminated
Ferroelectric properties
Magnetoelectric effect
