磁电复合材料CuFe_2O_4/PbZr_(0.53)Ti_(0.47)O_3的内耗与介电损耗  

INTERNAL FRICTION AND DIELECTRIC OF CuFe2O4/PbZr0.53Ti0.47O3 COMPOSITES

作　　者：戴玉蓉[1] 包鹏[1] 朱劲松[1] 沈惠敏[1] 刘俊明[1] 王业宁[1] 

机构地区：[1]南京大学物理系固体微结构国家重点实验室,南京210093

出　　处：《金属学报》2003年第11期1209-1211,共3页Acta Metallurgica Sinica

基　　金：国家重点基础研究发展规划资助项目2002CB613300

摘　　要：制备了组分为xCuFe2O4-(1-x)PbZr0.53Ti0.47O3(其中z=0.1,0.2,0.3,1.0)的磁电复合材料.XRD实验表明,样品中只存在着CuFe2O4和PbZr0.53Ti0.47O3相.利用多功能摆测量了样品在低频下(0.1-6.4Hz)的内耗,同时利用HP 4194A阻抗分析仪测量了样品低频(100 Hz-1 MHz)的介电损耗,分析了复合物中CuFe2O4和PZT对内耗及介电损耗分别所作的贡献.Composites with composition xCuFe(2)O(4)-(1-x)PbZr0.53Ti0.47O3 (x= 0.1, 0.2, 0.3 and 1.0) have been prepared by solid reaction method. The presence of two phases has been confirmed by XRD. Variation of internal friction as well as loss tangent with temperature at various frequencies has been studied. And the peaks observed in the experiments are assigned to the contributions of ferroelectric and copper ferrite respectively.

关 键 词：内耗 磁电效应 介电损耗 

分 类 号：O469[理学—凝聚态物理] O482.1[理学—电子物理学]