Research progress in modified ferrite composite absorbing materials
The research status and advantages and disadvantages of inorganic,organic and rare earth modified ferrite composite absorbing materials were introduced,and the future research directions were pointed out.Inorganic modification mainly focuses on carbon based materials,followed by inorganic oxides.Their electromagnetic parameters can be adjusted to improve their absorption performance by introducing inorganic substances to regulate the dielectric and magnetic losses of materials,however,some inorganic substances may be toxic,posing environmental risks to the materials.Organic modification mainly focuses on con-ductive polymer modification,i.e.combining conductive polymer with ferrite to optimize its absorption performance by adjusting the electromagnetic properties of the material,however,the thermal stability and weather resistance of organic modified ferrite were poor.The modification of ferrite with rare earth materials mainly adjusts the electromagnetic parameters of ferrite by doping rare earth elements to improve the broadband characteristics and absorption efficiency of the material,however,the cost is high and rare earth resources are limited and have a certain impact on the environment.The future research direction of modified ferrite composite absorbing materials is to optimize the modification process,improve absorption loss capacity by adjusting electro-magnetic parameters,expand application fields and overcome the limitations of absorbing materials.
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维普
