摘要
铁氧体作为常见的磁损耗型吸波材料,制备方法对其结构以及吸波性能的影响至关重要。传统的铁氧体制备多采用高温高压的溶剂热或者水热法制备,耗能大,材料后续复合时兼容性差。以氯化亚铁作为铁源,利用硝酸钾对亚铁离子进行可控的氧化反应,采用低温(50℃)共沉淀法制备了正八面体结构的Fe_(3)O_(4),研究了不同反应条件制备产物的吸波效果,并将其与介电材料NiCo_(2)O_(4)复合,制备的复合材料具有较好的吸波性能。低温法降低了对生产设备的要求,减小了耗能,提高了材料复合的兼容性,大大拓宽了铁氧体材料的应用范围。
Ferrite,a prevalent magnetic loss absorbing material,underscores the significance of its preparation method in determining both its structure and absorbing properties.Traditionally,ferrites are predominantly synthesized through solvothermal or hydrothermal methods,which entail substantial energy consumption and exhibit limited compatibility with other materials.Octahedral Fe_(3)O_(4)is successfully synthesized via a low-temperature(50℃)co-precipitation process,utilizing ferrous chloride as the iron source.The oxidation reaction is meticulously controlled using potassium nitrate.Furthermore,the absorption effectiveness of the resultant product under various reaction conditions is thoroughly examined.Notably,the composite material formed by combining NiCo_(2)O_(4)and Fe_(3)O_(4)exhibits superior absorbing properties.This low-temperature approach not only mitigates the demands on equipment and energy consumption but also enhances material compatibility,thereby significantly expanding the application scope of ferrite materials.
作者
潘虹
胡磊
徐丽慧
王以红
李凯
沈勇
王黎明
丁颖
PAN Hong;HU Lei;XU Lihui;WANG Yihong;LI Kai;SHEN Yong;WANG Liming;DING Ying(School of Textile and Clothing,Shanghai University of Engineering Science,Shanghai 201620,China)
出处
《材料工程》
北大核心
2025年第4期150-162,共13页
Journal of Materials Engineering
基金
上海自然科学基金项目(21ZR1426200)。
关键词
铁氧体
电磁吸波材料
低温制备
复合材料
ferrite
electromagnetic wave absorbing material
low temperature preparation
composite material
