低B<sub>2</sub>O<sub>3</sub>掺杂Bi-CVG铁氧体的结构与性能

低B₂O₃掺杂Bi-CVG铁氧体的结构与性能

基金项目:

陕西省科学技术研究计划资助项目(07JC08)；西安市科技计划资助项目(CXY08006)

详细信息

1. Shaanxi Jinshan Electronic Components Co. Ltd, Xianyang 712021, China;
2. College of Material Science & Engineering, Xi'an University of Architecture & Technology, Xi'an 710055, China

摘要: 采用传统固相反应法制备了Y_1.05Bi_0.75Ca_1.2Fe_4.4-xV_0.6B_xO₁₂(B_x:Bi-CVG)系列铁氧体试样。借助XRD、SEM及MATS等技术手段研究了烧结助剂B₂O₃对Bi-CVG铁氧体的体积密度、相组成、微观结构及磁性能的影响。研究结果表明,掺B可以有效降低Bi-CVG铁氧体的烧成温度,提高材料的烧结密度并且影响其微观结构和磁性能。在1040℃×6 h条件下烧结、B掺杂量为x=0.025时,制备出综合性能良好的Bi-CVG铁氧体材料:室温时D=5.11g/cm³,D_R.T=97.2%,B_s=37.30mT,B_r=25.54mT,H_c=0.87kA/m。
- Bi-CVG铁氧体 /
- B₂O₃掺杂 /
- 低温烧结 /
- 磁性能 /
- 微观结构
Abstract: B_x:Bi-CVG ferrite samples were prepared by solid-state reaction.The effect of sintering additives of B₂O₃ on the bulk density,phase structure,microstructures and magnetic properties of Bi-CVG were investigated by means of XRD,SEM and MATS.The results showed that doping B can lower sintering temperature of Bi-CVG samples.B doping leads to an increase in density and has an influence on microstructures and magnetic properties of samples.With B dopant dose x=0.025 and as sintered at 1040℃ for 6h,the sample obtained has good integrated properties:with D=5.11g/cm³,D_R.T=97.2%,B_s=37.30mT,B_r=25.54mT,H_c=0.87kA/m in room temperature.
- Bi-CVG ferrite /
- B₂O₃ dopant /
- Low-temperature sintering /
- Magnetic properties /
- Microstructure