采用氧化物法陶瓷工艺,对Li0.45Ni0.2Ti0.1Fe2.25O4铁氧体材料进行了缺铁配方、缺铁并添加烧结助剂等两方面的研究.结果表明:缺铁及添加Bi2O3都没有在锂铁氧体中形成杂相,烧结后陶瓷样品物相组成单一,结晶状况良好；这两种配方变化对材料微观形貌均有改善作用,其中同时缺铁并添加烧结助剂作用更为明显,该样品具有良好的综合性能,表观密度p为4.72 g·cm-3,介电损耗为5.4×10-4,饱和磁化强度4πM,为2275 Gs,剩磁比R为0.853,矫顽力Hc为2.9Oe,能够满足移相器对锂铁氧体材料的性能要求.
参考文献
| [1] | Gupta N;Kashyap SC;Dube DC .Microwave behavior of substituted lithium ferrite composites in X-band[J].Journal of Magnetism and Magnetic Materials,2005(0):307-314. |
| [2] | 余忠,陈代中,兰中文,蒋晓娜,刘保元.Bi2O3对烧结LiZn铁氧体性能的影响[J].无机材料学报,2007(06):1173-1177. |
| [3] | Su, H;Tang, XL;Zhang, HW;Jia, LJ;Zhong, ZY .Influences of Bi2O3 additive on the microstructure, permeability, and power loss characteristics of Ni-Zn ferrites[J].Journal of Magnetism and Magnetic Materials,2009(19):3183-3186. |
| [4] | Su, H;Tang, XL;Zhang, HW;Jia, LJ;Zhong, ZY .Influences of Bi2O3 additive on the microstructure, permeability, and power loss characteristics of Ni-Zn ferrites[J].Journal of Magnetism and Magnetic Materials,2009(19):3183-3186. |
| [5] | 荆玉兰,贾利军,张怀武,黄卫.复合添加对锂铁氧体烧结特性和电磁性能的影响[J].磁性材料及器件,2005(05):44-46. |
| [6] | 曹晓非,孙康宁,冷亮.Bi2O3和Bi（NO3）3掺杂对锂锌铁氧体微观结构和微波吸收性能的影响[J].功能材料,2009(03):384-386. |
| [7] | Liang Qiao;Bin Xu;Qiaoqin Xi .Effects of trace of Bi_2O_3 addition on the morphology of strontium ferrite particles[J].CERAMICS INTERNATIONAL,2010(4):1423-1427. |
| [8] | Saafan, SA;Assar, ST;Moharram, BM;El Nimr, MK .Comparison study of some structural and magnetic properties of nano-structured and bulk Li-Ni-Zn ferrite samples[J].Journal of Magnetism and Magnetic Materials,2010(6):628-632. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%