不同含量SmFeN/YSZ逐层分布复合隔热材料的吸波性能研究  

Study on Wave-absorbing Properties of Layer-by-layer Distributed Composite Thermal Insulation Materials with Different Contents of SmFeN/YSZ

作　　者：张洪宁 卢天倪 刘春忠 李娜 黄震威 张千喜 邹兵林 ZHANG Hongning;LU Tianni;LIU Chunzhong;LI Na;HUANG Zhenwei;ZHANG Qianxi;ZOU Binglin(School of Materials Science and Engineering,Shenyang Aerospace University,Shenyang 110136,China;Chinese Academy of Sciences,Changchun Institute of Applied Chemistry,State Key Laboratory of Rare Earth Resource Utilization,Changchun 130022,China)

机构地区：[1]沈阳航空航天大学材料科学与工程学院,辽宁沈阳110136 [2]中国科学院长春应用化学研究所稀土资源利用国家重点实验室,吉林长春130022

出　　处：《材料开发与应用》2024年第1期56-65,73,共11页Development and Application of Materials

摘　　要：雷达检测技术的快速发展对发动机等热部件的吸波性能提出了更高的要求。常用的隔热材料钇锆氧(YSZ)没有吸波性能,目前采用在其中添加吸波剂的方式实现对雷达隐身。基于此,本研究通过增材制造技术,将不同质量比的吸波剂钐铁氮(SmFeN)和基体材料YSZ进行层状叠加,制备了具有垂直于入射电磁波的相界面的吸波体,构建出SmFeN/YSZ复合材料界面模型。研究结果表明,将YSZ粉末与SmFeN金属颗粒按照不同质量比分层堆叠后,形成的SmFeN/YSZ异质界面提高了材料的微波吸收性能。当YSZ与SmFeN质量比为1∶1时,其反射损耗值达到最小,为-54.498 dB,有效吸收频宽达到最大,为2.5 GHz。The rapid development of radar detection technology has put forward higher requirements for the wave-absorbing properties of thermal components such as engines.The commonly used thermal insulation material yttria-stabilized zirconia oxygen(YSZ)does not have wave-absorbing property,and it is currently used to add wave-absorbing agent in the thermal insulation material to realize its stealth from radar.Based on that,we adopt the additive manufacturing technology to lamellarly distribute the lasamarium iron nitrogen(SmFeN)wave-absorbing agent with different mass ratios and heat-insulating coating material YSZ composites to construct a SmFeN/YSZ composite interface model,whose phase interface perpendicular to the incident electromagnetic wave.The results show that when the SmFeN metal particles and YSZ powders are hierarchically stacked in different ratios,the YSZ/SmFeN heterogeneous interfaces can improve the microwave absorption properties.When the mass ratio of YSZ to SmFeN is 1∶1,the minimum reflection loss value is-54.498 dB and the maximum effective absorption bandwidth is 2.5 GHz.

关 键 词：SMFEN YSZ 隔热涂层 吸波性能 

分 类 号：TU551[建筑科学—建筑技术科学]