摘要
以分析纯的Co2O3和Fe(NO3)3.9H2O为原料,用常规工艺,在1270℃下烧结1 h制备了CoFe2O4陶瓷,作为铁磁相;铁电相为购自美国的PZT502粉体烧制成的陶瓷。将这两种材料切割成长片状,并叠层复合成为3和7层的2-2复合材料。研究了外加磁场和频率对复合材料的磁电耦合效应的影响;当叠层数为7时,复合材料的磁电耦合系数达到234.6 mV/(cm.Oe)、感应电压达2.3 V。
Abstract： Using Co2O3 and Fe （NO3）3 · 9H2O as precursors, CoFe2O4 ceramics used as ferromagnetic phase had been prepared via traditional ceramics process. The sintering temperature was 1 270 ℃. PZT502 ceramics as ferroelectric phase was fabricated from PZT powder which was bought from Morgan Technical Ceramics, USA. Both of the ceramics were cut into long slices. Magneto/electric 2--2 composites had been fabricated via laminating PZT502 and CoFe2 04 ceramic slices. The effect of bias field and driving frequency on magneto--electric （M--E） transition efficiency was investigated. The magneto--electric transition efficiency of 234. 6 mV/ （cm · Oe） was achieved for composites with 7 layers and the inducted voltage was found to be 2. 3 V.
出处
《江苏工业学院学报》
2009年第3期1-5,共5页
Journal of Jiangsu Polytechnic University
关键词
铁电/铁磁复合材料
磁电效应
铁酸钴
锆钛酸铅
ferroelectric/ferromagnetic composites
magnetoelectric effect
CoFe2O4
PZT
