以PZT5和(Mg0.5Zn0.5)Fe2O4为原料,合成了不同配比的铁电/铁磁复相材料.XRD和SEM研究结果表明复相材料中只含有钙钛矿结构的PZT5和尖晶石结构的(Mg0.5Zn0.5)Fe2O4,无杂相生成,这说明共烧过程中两者没有发生明显的化学反应.介电频谱表明,相对介电常数随PZT5含量的增加而增加(测试频率在30 MHz以下),介电温谱表明,居里温度随频率升高而向高温移动(其值分别为250,300,326,372 ℃).电滞回线呈现了材料的漏电流较大的特点.磁滞回线表明,这种复相材料具有亚铁磁性,饱和磁化强度随铁氧体含量的增加而增加.性能测试表明,这种由PZT5和(Mg0.5Zn0.5)Fe2O4共同组成的复相材料对外同时表现出铁电性和铁磁性.
参考文献
[1] | Patankar KK.;Mahajan RP.;Patil SA.;Reddy RM.;SivaKumar KV.;Mathe VL. .Dielectric behaviour and magnetoelectric effect in CuFe2O4-Ba0.8Pb0.2TiO3 composites[J].Materials Chemistry and Physics,2001(1):23-29. |
[2] | 黄婉霞;陈家钊 .[J].功能材料,1996,27(05):431. |
[3] | Kulkarni S R;Kanamadi C M;Chougule B K .[J].Materials Research Bulletin,2005,40:2064. |
[4] | Patankar KK;Mathe VL;Patil RN;Chougule BK .Structural analysis, magnetic properties and magnetoelectric effect in piezomagnetic-piezoelectric composites[J].Materials Chemistry and Physics,2006(2/3):197-200. |
[5] | Patankar KK;Joshi SS;Chougule BK .Dielectric behaviour in magnetoelectric composites[J].Physics Letters, A,2005(5/6):337-341. |
[6] | Zeng M;Wan J G;Wang Y et al.[J].Journal of Applied Physics,2004,95(12):15. |
[7] | Kadam SL.;Patankar KK.;Mathe VL.;Kothale MB.;Kale RB.;Chougule BK. .Electrical properties and magnetoelectric effect in Ni0.75Co0.25Fe2O4+Ba0.8Pb0.2TiO3 composites[J].Materials Chemistry and Physics,2003(3):684-690. |
[8] | Cai N;Zhai J;Nan C W et al.[J].Physical Review,2003,B68:224103. |
[9] | El-Hiti M A .[J].Journal of Magnetism and Magnetic Materials,1996,164:187. |
[10] | Patankar K K .Synthesis and Characterization of Magnetoelectric Composites[D].Kolhapur:Shivaji University,2001. |
[11] | Lupeiko G;Lopatina I B;Kozyrev I V et al.[J].Inorganic Materials,1992,28:481. |
[12] | Patankar KK.;Mahajan RP.;Patil SA.;Reddy RM.;SivaKumar KV.;Mathe VL. .Dielectric behaviour and magnetoelectric effect in CuFe2O4-Ba0.8Pb0.2TiO3 composites[J].Materials Chemistry and Physics,2001(1):23-29. |
[13] | Patankar KK;Joshi SS;Chougule BK .Dielectric behaviour in magnetoelectric composites[J].Physics Letters, A,2005(5/6):337-341. |
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