| 摘要: |
| 以固相合成法制备了铁酸铋（BiFeO3，简称BFO）掺杂的铌铟酸铅-铌镁酸铅-钛酸铅（Pb（In1/2Nb1/2）O3-Pb（Mg1/3Nb2/3）O3-PbTiO3，简称PIN-PMN-PT）多铁性陶瓷材料，X射线衍射（XRD）测试结果表明：样品具有钙钛矿结构，电滞回线显示其铁电性良好，剩余极化值（Pr）可达18 μC·cm-2.由于BiFeO3掺杂后，样品电矩减小，氧空位增多，使其铁电畴翻转困难，样品的电性能略有下降，但是其磁性能随BiFeO3掺入量的增加而逐渐增强，且样品居里温度（Tm）为200℃左右.该材料在电磁学领域有望成为具有应用前景的多铁性材料. |
| 关键词: 多铁性 铌铟酸铅-铌镁酸铅-钛酸铅（PIN-PMN-PT） 陶瓷 |
| DOI：10.3969/J.ISSN.1000-5137.2021.06.003 |
| 分类号:TQ174.75 |
| 基金项目:国家重点研发计划（2016YFB0701004） |
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| Preparation of BiFeO3 doped Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 ceramics and investigation on their electric and magnetic property |
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XIONG Neng1, FANG Mengzhu1, PAN Yubo2, SUN Dazhi1
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1.College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China;2.College of Mathematics and Science, Shanghai Normal University, Shanghai 200234, China
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| Abstract: |
| The multiferroic composite ceramic bismuth ferrite (BiFeO3) doped lead niobate indium-lead magnesium niobate-lead titanate (Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3) which had a perovskite structure as the X-ray diffraction (XRD) showed was prepared by a solid-state synthesis. The hysteresis loop shows that its ferroelectricity performs well and the remanent polarization(Pr) reachs 18 μC·cm-2. Due to the doping of BiFeO3, the electrical moment of the sample decreases, oxygen vacancies increase, and ferroelectric domain switching is difficult, resulting in a decrease in ferroelectric properties, but its magnetic properties gradually increase with the increase of BiFeO3 doping. In addition, the sample has a Curie temperature(Tm) of about 200℃, and it is expected to become a multiferroic material with promising applications in the field of electromagnetics. |
| Key words: magnetoelectric Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3(PIN-PMN-PT) ceramic |
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