| 粉末-溶胶前驱法制备的NiCuZnCo-Bi0.5(Na0.82K0.18)0.5TiO3复合陶瓷及其磁介电性能 |
| |
| 引用本文： | 刘胜,颜铄清,贺君,黄生祥,邓联文.粉末-溶胶前驱法制备的NiCuZnCo-Bi0.5(Na0.82K0.18)0.5TiO3复合陶瓷及其磁介电性能[J].磁性材料及器件,2019,50(5):5-9,17. |
| |
| 作者姓名： | 刘胜 颜铄清 贺君 黄生祥 邓联文 |
| |
| 作者单位： | 湖南工程学院机械工程学院,湖南湘潭,411104;湖南工程学院理学院,湖南湘潭,411104;中南大学物理与电子学院,湖南长沙,410083 |
| |
| 摘 要： | 采用粉末-溶胶前驱工艺制备xNi0.34Cu0.17Zn0.46Co0.03Fe1.96O3.94/(1–x)Bi0.5(Na0.8K0.2)0.5TiO3xNCZCF/(1–x)BNKT](x=0.5, 0.65, 0.75, 0.85)颗粒复合陶瓷,研究磁性铁氧体相NCZCF含量对复合陶瓷结构、形貌、铁磁性能和磁介电行为的影响。结果表明,烧结温度为1060℃,复合陶瓷中仅存在NCZCF铁磁相和BNKT铁电相;随NCZCF铁氧体含量增加,复合陶瓷的饱和磁化强度和起始磁导率增大,介电常数减小;当x=0.75时,0.75NCZCF/0.25BNKT复合陶瓷在3~30 MHz的频率范围内的磁导率和介电常数实部约为32,磁损耗低于0.02,介电损耗约为0.01,归一化本征阻抗约为1.005。所制备的等磁介复合陶瓷材料可用于制作小型化天线基板。
|
| 关 键 词： | 磁电复合陶瓷 粉末-溶胶前驱法 铁磁性 磁导率 介电常数 损耗 |
Magneto-dielectric characteristics of NiCuZnCo-Bi0.5(Na0.82K0.18)0.5TiO3 composite prepared by in-situ sol-gel method |
| |
| LIU Sheng,YAN Shuo-qing,HE Jun,HUANG Sheng-xiang,DENG Lian-wen.Magneto-dielectric characteristics of NiCuZnCo-Bi0.5(Na0.82K0.18)0.5TiO3 composite prepared by in-situ sol-gel method[J].Journal of Magnetic Materials and Devices,2019,50(5):5-9,17. |
| |
| Authors: | LIU Sheng YAN Shuo-qing HE Jun HUANG Sheng-xiang DENG Lian-wen |
| |
| Affiliation: | (College of Mechanical Engineering,Hunan Institute of Engineering,Xiangtan 411104,China;College of science,Hunan Institute of Engineering,Xiangtan 411104,China;School of Physics and Electronics,Central South University,Changsha,410083,China) |
| |
| Abstract: | xNi0.34Cu0.17Zn0.46Co0.03Fe1.96O3.94/(1–x)Bi0.5(Na0.8K0.2)0.5TiO3xNCZCF/(1–x)BNKT](x=0.55, 0.65, 0.75, 0.85) composites were synthesized by powder-in-sol precursor hybrid processing method. The effect of magnetic phase NCZCF content on the microstructure, morphology, ferromagnetic properties and magneto-dielectric response were studied. The results show that the composites consist of only NCZCF ferrite phase and BNKT ferroelectric phases. With increasing NCZCF ferrite content, the magnetization and the permeability of the composites increase, the permittivity decrease. The sample 0.75NCZCF/0.25BNKT presented a real permeability of 32 (loss tangent ~0.02) and a real permittivity of 32 (loss tangent ~0.01), respectively, in the frequency range 3 to 30 MHz. This composite material has potential prospects in antenna miniaturization at HF band (3-30 MHz). |
| |
| Keywords: | magnetoelectric composite ceramics powder-in-sol precursor processing ferromagnetism permeability permittivity loss |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
