摘要
研究了在（Ｎｉ０.2Ｃｕ0 .2Ｚｎ0 .６）１．０３（Ｆｅ2Ｏ３)0 ．９７＋０．９７ｘＭnO2(ｘ=０．１～０．５)中，随Ｍｎ含量的变化，磁性能的改变及与微观结构的关系．适量的Ｍｎ掺杂可以提高室温下铁氧体的起始磁导率，而Ｍｎ含量继续增加会促使第二相形成，使磁导率温度系数变大，出现类似铁电体的弛豫现象．
MnO2 was introduced to NiCuZn ferrite. The effects of Mn substitution on the magnetic properties and microstructure of the (Ni0.2Cu0.2Zn0.6)(1.03)(Fe2O3)(0.97)+0.97xMnO(2) ferrite (x=0.1similar to0.5) were investigated. Mn content increases the initial permeability, but excess Mn content will result in the formation of a secondary phase. And the initial permeability depending on temperatures is strongly affected by Mn content too. When xgreater than or equal to0.4, the temperature coefficient of initial permeability increases quickly, which just like the relaxant phenomenon in ferroelectrics.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2001年第6期1225-1228,共4页
Journal of Inorganic Materials
基金
国家"863"高技术资助项目(715-Z33-006-0050)
