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首页> 外文期刊>Journal of Materials Science >Magnetoelectric and electrical properties of WO3-doped (Ni0.8Zn0.1Cu0.1)Fe2O4/[Pb(Ni1/3Nb2/3)O3–Pb(Zn1/3Nb2/3)O3–PbTiO3] composites
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Magnetoelectric and electrical properties of WO3-doped (Ni0.8Zn0.1Cu0.1)Fe2O4/[Pb(Ni1/3Nb2/3)O3–Pb(Zn1/3Nb2/3)O3–PbTiO3] composites

机译：掺杂WO 3 （Ni 0.8 Zn 0.1 Cu 0.1 ）Fe 2的磁电性能 O 4 / [Pb（Ni 1/3 Nb 2/3 ）O 3 – Pb（Zn 1/3 Nb 2/3 ）O 3 –PbTiO 3 ]复合材料

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A total of 5 mol% WO3-doped (1−x)(Ni0.8Zn0.1Cu0.1)Fe2O4/xPb(Ni1/3Nb2/3)O3–Pb(Zn1/3Nb2/3)O3–PbTiO3 ((1−x)NZCF/xPNN-PZN-PT) magnetoelectric particulate ceramic composites were prepared by conventional solid-state reaction method via low-temperature sintering process. X-ray diffraction (XRD) measurement and scanning electron microscopy (SEM) observation indicate that piezoelectric phase and ferrite phase coexist in the sintered particulate ceramic composites. Dielectric property of the (1−x)NZCF/x0.53PNN–0.02PZN–0.05Pb(Ni1/2W1/2)O3–0.40PT ((1−x)NZCF/xPNN-PZN-PNW-PT, nominal composition) composites is improved greatly as compared to that of the undoped (1−x)NZCF/xPNN-PZN-PT composites. The WO3-doped (1−x)NZCF/xPNN-PZN-PT composites exhibit typical P–E hysteresis loops at room temperature accompanied by the decrease of saturation polarization (P s) and remnant polarization (P r). At the same time, piezoelectric property of the composites deteriorates greatly with the increase of ferrite content. The (1−x)NZCF/xPNN-PZN-PNW-PT composites can be electrically and magnetically poled and exhibit apparent magnetoelectric (ME) effect. A maximum ME voltage coefficient of 13.1 mV/(cm Oe) is obtained in the 0.1NZCF/0.9PNN-PZN-PNW-PT composite at 400 Oe d.c. magnetic bias field superimposed 1 kHz a.c. magnetic field with 5 Oe amplitude. The addition of WO3 in the piezoelectric phase decreases sintering temperature greatly from 1180 °C to 950 °C and decreases dielectric loss sharply of the composites, thus the ME voltage coefficient increases. Such ceramic processing is valuable for the preparation of magnetoelectric particulate ceramic composites with excellent ME effect.
机译：总共掺杂了5 mol％的WO 3 （1-x）（Ni 0.8 Zn 0.1 Cu 0.1 ）Fe 2 O 4 / xPb（Ni 1/3 Nb 2/3 ）O 3 –Pb（Zn 1/3 Nb 2/3 ）O 3 –PbTiO 3 （ （1x）NZCF / xPNN-PZN-PT）磁电颗粒陶瓷复合材料是通过低温烧结工艺通过常规固态反应方法制备的。 X射线衍射（XRD）测量和扫描电子显微镜（SEM）观察表明，在烧结的颗粒陶瓷复合材料中压电相和铁氧体相共存。 （1-x）NZCF / x0.53PNN–0.02PZN–0.05Pb（Ni 1/2 W 1/2 ）O 3 < /sub>-0.40PT（（1-x）NZCF / xPNN-PZN-PNW-PT，标称成分）复合材料与未掺杂（1-x）NZCF / xPNN-PZN-PT复合材料相比，得到了很大改善。掺WO 3 的（1-x）NZCF / xPNN-PZN-PT复合材料在室温下表现出典型的PE磁滞回线，并伴随着饱和极化的减小（P s ）和剩余极化（P r ）。同时，随着铁素体含量的增加，复合材料的压电性能大大降低。 （1-x）NZCF / xPNN-PZN-PNW-PT复合材料可以电和磁极化，并表现出明显的磁电（ME）效应。 0.1NZCF / 0.9PNN-PZN-PNW-PT复合材料在400 Oe d.c下获得的最大ME电压系数为13.1 mV /（cm Oe）。磁场偏置叠加在1 kHz交流电下5 Oe振幅的磁场。在压电相中加入WO 3 可将烧结温度从1180°C降至950°C，并显着降低复合材料的介电损耗，因此ME电压系数增加。这种陶瓷加工对于制备具有优异的ME效果的磁电颗粒陶瓷复合材料是有价值的。

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