镍酸镧界面层对锆钛酸铅膜–钴铁氧体陶瓷复合磁电材料性能的影响  

Modulation of Magnetoelectric Effect of Pb(Zr,Ti)O_3-film-on-CoFe_2O_4 Ceramic Composites by LaNiO_3 Interface Layer

作　　者：王婧[1] 李峥[2] 沈洋[2] 林元华[2] 南策文[2] 

机构地区：[1]清华大学核能与新能源技术研究院 [2]清华大学材料学院,新型陶瓷与精细工艺国家重点实验室,北京100084

出　　处：《硅酸盐学报》2013年第10期1313-1317,1322,共6页Journal of The Chinese Ceramic Society

基　　金：国家重点基础研究发展计划(2009CB623303);国家自然科学基金(51221291;51202118);博士学科点专项科研基金(20120002120012)资助项目

摘　　要：以化学溶液沉积法制得的LaNiO3薄膜作为Pb(Zr0.52Ti0.48)O3膜-CoFe2O4陶瓷复合材料的导电界面层,利用其优良的导电性保证磁电信号的有效输出。LaNiO3界面层的引入,使得复合材料体系的铁电性能、压电性能得到有效表达,其层面内磁电耦合系数达到58mV/(cm Oe)。继续优化制备工艺及界面层的参数,磁电耦合性能将进一步提高。In the ferroelectric-film/magnetic-ceramic magnetoelectric composites, the conductivity of the magnetic ceramics is an important factor in the charge collection of the electric-related properties and the resultant characterization of the magnetoelectric effect. This paper was to investigate the improvement of charge collection when the metallic-oxide LaNiO3 interface layer was intro- duced via the chemical solution deposition into the Pb（Zr, Ti）O3-film/CoFe204-ceramic composites. The optimum magnetoelectric coefficient is 58 mV/（cm.Oe）. The ferroelectric and piezoelectric properties can be enhanced due to the.introduction of LaNiO3 interface layer. The further modulation of the magnetoelectric coupling effect is expected by the optmatzataon of the LaNiO3 interface layer.

关 键 词：磁电复合材料 金属氧化物 化学溶液沉积法 多铁性 

分 类 号：TQ174.13[化学工程—陶瓷工业]