摘要
分别采用水热法与氧化物法制备Ni0.5Cu0.1Zn0.4Fe2O4铁氧体材料。基于低温共烧的要求,研究两种工艺铁氧体粉料电磁性能及显微结构的差异。结果表明,以硝酸盐为原材料的水热法可制备出良好烧结活性的NiCuZn铁氧体粉体,在添加一定量的Bi2O3及MoO3时,水热合成粉料的μi的温度稳定性较好,饱和磁通密度Bs较高,晶粒尺寸均匀、结构致密性好。
Ni0.5Cu0.1Zn0.4Fe2O4 ferrites were prepared by both hydrothermal synthesis and oxide methods. Based on requirement for low temperature co-firing, we investigated the difference in magnetic properties and microstructure of ferrites between the two methods. The result shows that NiCuZn ferrite could be synthesized by hydrothermal synthesis methods with good sintering activity. As doping a certain amount of Bi203 and MOO3, hydrothermal synthesis ferrite shows stable temperature characteristics on initial permeability(μi), higher saturation magnetic flux density(Bs), for its uniform grain size and good densification.
出处
《磁性材料及器件》
CAS
2015年第4期47-49,66,共4页
Journal of Magnetic Materials and Devices
关键词
NICUZN铁氧体
水热法
氧化物法
显微结构
饱和磁感应强度
NiCuZn ferrite
hydrothermal synthesis methods
oxide method
microstructure
saturationmagnetic flux density