《厦门大学学报（自然科学版）》

以锆钛酸铅(PZT)为压电相,分别以Ni和非晶铁合金(Metal-glass)为磁致伸缩相,采用焊接的方法制备了层状磁电复合材料Ni/PZT/Ni和Metal-glass/PZT/Metal-glass,并研究其在0～100 ℃范围内的磁电效应.结果表明,通过焊接复合得到的2种层状磁电复合材料都表现出良好的温度稳定性,在0～100 ℃ 范围内磁电电压系数基本保持恒定,有望用于高温磁电器件的设计.

Using lead zirconate titanate(PZT)as piezoelectric phase,and Ni and amorphous ferroalloy(Metal-glass)as magneto-strictive phase,two kinds of laminated magnetoelectric composites,Ni/PZT/Ni and Metal-glass/PZT/Metal-glass,were prepared by welding method.The magnetoelectric effects of all laminated magnetoelectric composites were measured at temperature ranging from 0 ℃ to 100 ℃.The results showed that both laminated magnetoelectric composites bonded by welding exhibited very good thermal stability,and their magnetoelectric voltage coefficient remains constant at 0-100 ℃,which made them suitable for high temperature applications.

引言
1 实验方法
2 结果与讨论
3 结论

图1 L-T模式层状磁电复合材料的结构示意图<br/>Fig.1 The structural diagram of L-T mode laminated magnetoelectric composites

图1 L-T模式层状磁电复合材料的结构示意图
Fig.1 The structural diagram of L-T mode laminated magnetoelectric composites

图2 磁电系数测试装置的结构示意图<br/>Fig.2 The structural diagram of magnetoelectric coefficient test device

图2 磁电系数测试装置的结构示意图
Fig.2 The structural diagram of magnetoelectric coefficient test device

图3 不同温度下4种层状磁电复合材料的αME-Hbias曲线<br/>Fig.3 The curves of αME-Hbias of 4 kinds laminated magnetoelectric composites at different temperatures

图3 不同温度下4种层状磁电复合材料的αME-Hbias曲线
Fig.3 The curves of αME-Hbias of 4 kinds laminated magnetoelectric composites at different temperatures

表1 Ni、Metal-glass、PZT的材料参数<br/>Tab.1 Material parameters of Ni, Metal-glass and PZT

表1 Ni、Metal-glass、PZT的材料参数
Tab.1 Material parameters of Ni, Metal-glass and PZT

图4 层状磁电复合材料的αME,max随温度的变化<br/>Fig.4 Variation of αME,max with temperature of laminated magnetoelectric composites

图4 层状磁电复合材料的αME,max随温度的变化
Fig.4 Variation of αME,max with temperature of laminated magnetoelectric composites

图5 不同温度下焊接复合的层状磁电复合材料的αQME-Hbias曲线(a)及其αQME,max随温度的变化曲线(b)<br/>Fig.5 The curves of αQME-Hbias of welded laminated magnetoelectric composites at different temperatures(a), and variation of αQME,maxwith temperature(b)

图5 不同温度下焊接复合的层状磁电复合材料的αQME-Hbias曲线(a)及其αQME,max随温度的变化曲线(b)
Fig.5 The curves of αQME-Hbias of welded laminated magnetoelectric composites at different temperatures(a), and variation of αQME,maxwith temperature(b)

图6 压电相PZT的电容(a)及αQME,max的计算值(b)随温度的变化曲线<br/>Fig.6 Variation of capacitance of piezoelectric phase PZT(a)and the calculated αQME,max(b)with temperature

图6 压电相PZT的电容(a)及αQME,max的计算值(b)随温度的变化曲线
Fig.6 Variation of capacitance of piezoelectric phase PZT(a)and the calculated αQME,max(b)with temperature

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备注

引言

1 实验方法

2 结果与讨论

3 结论

学报简介

备注

引言

1 实验方法

2 结果与讨论

3 结 论

学报简介

3 结论