| 单晶PZT-CFO铁电-铁磁复合纳米纤维的制备与磁学性能研究 |
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| 引用本文： | 肖珍,张嘉玮,雷磊,王焕平,徐时清.单晶PZT-CFO铁电-铁磁复合纳米纤维的制备与磁学性能研究[J].材料导报,2017,31(15):153-156. |
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| 作者姓名： | 肖珍 张嘉玮 雷磊 王焕平 徐时清 |
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| 作者单位： | 中国计量大学材料与科学工程学院,杭州,310018 |
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| 基金项目： | 浙江省自然科学基金(LQ14E020005) |
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| 摘 要： | 以不同锆掺杂量的前钙钛矿结构钛酸铅和铁酸钴为原料,采用原位固相烧结法合成了一系列单晶锆钛酸铅-铁酸钴(PZT-CFO)复合纳米纤维。X射线衍射、扫描电子显微镜和能谱分析结果表明,一维单晶PZT-CFO复合纳米纤维同时存在钙钛矿相的锆钛酸铅和尖晶石相的铁酸钴。高分辨透射电子显微镜研究证实锆钛酸铅和铁酸钴之间存在外延生长关系。采用振动样品磁强计对PZT-CFO复合纳米纤维的磁学性能进行测试,发现该复合纳米纤维具有明显的铁磁性能,其剩余磁化强度和矫顽力随着锆掺杂量的增加而增加。
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| 关 键 词： | 钙钛矿 复合材料 异质结 固相反应 多铁性 |
Preparation and Magnetic Properties of Single-crystal Multiferroic PZT-CFO Nanofiber Composites |
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| XIAO Zhen,ZHANG Jiawei,LEI Lei,WANG Huanping and XU Shiqing.Preparation and Magnetic Properties of Single-crystal Multiferroic PZT-CFO Nanofiber Composites[J].Materials Review,2017,31(15):153-156. |
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| Authors: | XIAO Zhen ZHANG Jiawei LEI Lei WANG Huanping and XU Shiqing |
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| Affiliation: | College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018,College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018,College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018,College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018 and College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018 |
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| Abstract: | One dimensional single-crystal multiferroic composites consisting of PbZrxTi1-x O3 (PZT) nanofibers and CoFe2O4 (CFO) nanodots were prepared by a facile in-situ solid state sintering method,in which pre-perovskite Zr-doped PbTiO3 nanofibers and commercial CFO nanodots were used as precursors.X-ray diffraction (XRD),scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) analyses demonstrated that the PZT-CFO single-crystal multiferroic composites were composed of nanofibers and nanodots.The detailed structural characterizations by transmission electron microscopy (TEM) demonstrated an epitaxial growth relation between PZT nanofibers and CFO nanodots.Ferromagnetism of the nanofiber composites were investigated by vibrating sample magnetometer (VSM),which found PZT-CFO nanocomposites had typical magnetic field hysteresis loops at room temperature.Moreover,the remanent magnetization (Mr) and coercive field (He) value increased with the Zr doping concentration. |
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| Keywords: | perovskite composite materials heterojunction solid state reaction multiferroicity |
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