PREPARATION AND PROPERTIES OF BATIO3/ COFE2O4 COMPOSITE CERAMICS
In this study, we report a general process to prepare BaTiO3, CoFe2O4 nanoparticles and other oxides nanoparticles with complex compositions. BaTiO3, CoFe2O4 nanoparticles with particle size less than 50nm were fabricated by a surfactant-assisted ball milling process followed a centrifugal separation. Furthermore, ferroelectric/ferrite composites of (1x) BaTiO3/xCoFe2O4 (x=0.1, 0.2, 0.3, 0.5) ceramics were then synthesized. The dependence of the ferroelectric and magnetic properties on the content of CoFe2O4 has been investigated systematically. No interface reaction was observed in the multiferroic ceramics and the samples have been confirmed with excellent ferroelectric and ferromagnetic properties, of which the maximal remnant polarization value of 1.9uC/cm2 and saturation magnetization of 35emu/g were measured at 10％ and 30％ of CoFe2O4, respectively. The dielectric properties of the composites have also been measured as the variation of ferroelectric/magnetic fractions.
Multiferroic Ferroelectric nanoparticles BaTiO3/CoFe2O4 composites magnetoelectric
Lin-lin LIU Yi-ping WANG Wang-jie QIAN Bing WANG Ying YANG
State Key Laboratory of Mechanics and Control of Mechanical Structures, College of Aerospace Enginee State Key Laboratory of Mechanics and Control of Mechanical Structures, College of Aerospace Enginee
国际会议
深圳
英文
301-304
2011-12-09（万方平台首次上网日期，不代表论文的发表时间）