摘要
用高分子凝胶法制备了稀土元素铈掺杂的镍锌铁氧体粉Ni0.5Zn0.5CexFe2-xO4,并对产物结构和电磁性能进行了表征.结果表明,当Ce3+的掺杂摩尔数x为0.1时,800℃煅烧后会形成立方晶系尖晶石结构的镍锌铁氧体晶相.与Ni0.5Zn0.5Fe2O4铁氧体相比,在8.2～12.4 GHz频率范围内掺杂铈元素的Ni0.5Zn0.5Ce0.1Fe1.9O4铁氧体的tan δm值降低,而其tanδe值升高,平均值可达0.527.
Ni0.5Zn0.5CexFe2-xO4(x=0,0.1) ferrites were prepared by the polyacrylamide gel method.Their structural characteristics and electromagnetic properties were analyzed by XRD and HP8510 network analyzer.The results indicate that pure spinel structure of Ni0.5Zn0.5Fe2O4 can be formed at 800 ℃ when x is 0.1;tanδm values of Ce-doped Ni-Zn ferrites are lower than those of the sample without Ce,but tanδe values of Ce-doped Ni-Zn ferrites are higher than those of without Ce doping in the X band,their average value of tanδe is 0.527.
出处
《辽宁化工》
CAS
2012年第5期437-439,共3页
Liaoning Chemical Industry
关键词
镍锌铁氧体
铈掺杂
高分子凝胶法
电磁性能
Ni-Zn ferrite
Cerium doping
Polyacrylamide gel
Electromagnetic properties
