二氧化锆包覆对提高铁钴吸收剂的耐高温性能研究  

Study on Effect of Zirconium Dioxide Coating on Impro ving High Temperature Resistance of Iron-cobalt Absorbent

作　　者：洪跃辉 庄海燕 叶志民 陈翔 杨烈霁 HONG Yuehui;ZHUANG Haiyan;YE Zhimin;CHEN Xiang;YANG Lieji(Xiamen Advanced Materials Academy of Luoyang Ship Material Research Institute,Xiamen 361101,China;Sciehce and Technology on Marine Corosion and Protection Laboralory,Luoyang Ship Material Research Institute,Qinglao 266101,China)

机构地区：[1]中国船舶集团有限公司第七二五研究所厦门材料研究院,福建厦门361101 [2]中国船舶集团有限公司第七二五研究所海洋腐蚀与防护重点实验室,山东青岛266101

出　　处：《材料开发与应用》2022年第3期26-34,68,共10页Development and Application of Materials

摘　　要：采用溶胶-凝胶法,利用二氧化锆(ZrO_(2))与FeCo的结合,制备FeCo@ZrO_(2)吸收剂,通过矢量网络分析对高温处理前后FeCO@ZrO_(2)吸收剂的电磁参数和吸波性能进行表征,结果表明:经过包覆改性FeCo@Zr0_(2)吸收剂的介电常数明显降低,FeCo@ZrO_(2)吸收剂的阻抗匹配特性和吸波性能得到提高;经过包覆改性,FeCo@Zr0_(2)吸收剂在高温处理后仍具有较优的吸波性能,其反射率在7~9 GHz波段仍然保持在-10 dB以下。The sol-gel method is used to prepare FeCo@ZrO_(2) absorbent by the combination of zirconia and FeCo. Vector network analysis is used to characterize the electromagnetic parameters and absorbing performance of FeCO@ZrO_(2) before and after high temperature treatment. The results show that the dielectric constant of FeCo@ZrO_(2) absorbent modified by coating is significantly reduced. The impedance matching characteristics and absorbing performance of the FeCo@ZrO_(2) absorber are improved. The modified FeCo@ZrO_(2) absorber still has significant absorbing performance after high temperature treatment, and its reflectivity simulation curve remains below-10 dB at 7-9 GHz.

关 键 词：FeCo吸收剂 溶胶-凝胶法 包覆改性 耐高温 

分 类 号：TB34[一般工业技术—材料科学与工程]