原位复合法制备镧掺杂SrFe_(12)O_(19)/PPy复合材料的组织与电磁性能  

Microstructure and Electromagnetic Properties of La-Doped SrFe_(12)O_(19)/PPy Composite Synthesized by In-situ Composting

作　　者：康永[1] 黄英[1] 

机构地区：[1]西北工业大学理学院应用化学系,西安710072

出　　处：《机械工程材料》2015年第3期71-74,共4页Materials For Mechanical Engineering

基　　金：航天支撑技术基金资助项目(NBXW0001)

摘　　要：以脱脂棉为模板合成了镧掺杂SrFe12O19粉体,以其为原料并运用原位复合法制备了镧掺杂SrFe12O19/PPy复合材料,对复合材料的显微组织与电磁性能进行了研究。结果表明:镧掺杂SrFe12O19/PPy复合材料呈现定向排列的球状聚集体,镧掺杂的SrFe12O19颗粒在基体中分散得很均匀,而且PPy紧密包覆在镧掺杂SrFe12O19表面;镧掺杂SrFe12O19/PPy复合材料的电磁性能随着镧掺杂SrFe12O19含量的减少而呈非线性降低的规律。La-doped SrFe12O19 particles were prepared by absorbent cotton template method and then were used as raw material to prepare La-doped SrFe12O19/PPy composite by in-situ composting.The microstructure and electromagnetic properties of the composite were studied.The results show that La-doped SrFe12O19/PPy composite was a kind of aligned spherical aggregates,La-doped SrFe12O19 particles in the system were uniformly dispersed,and the PPy on the surface of La-doped SrFe12 O19 was coated very closely.Magnetic properties of La-doped SrFe12O19/PPy composite appeared nonlinear reduced with the decrease of La-doped SrFe12O19 content.

关 键 词：原位复合法 球状聚集体 镧掺杂SrFe12O19 电磁性能 

分 类 号：TB34[一般工业技术—材料科学与工程]