漂珠/镍–铁–磷复合材料的制备及吸波性能  

Preparation and wave-absorbing property of fly ash cenospheres/nickel–iron–phosphorous composite

作　　者：庞建峰[1] 李玲[1] 黄文娟[1] 陆艳秋[1] 马喜君[1,2] 谢兴勇[1,2] 

机构地区：[1]淮阴工学院生命科学与化学工程学院,江苏淮安223003 [2]江苏省凹土资源利用重点实验室,江苏淮安223003

出　　处：《电镀与涂饰》2015年第8期427-432,共6页Electroplating & Finishing

基　　金：淮阴工学院校科研基金项目(HGB1402);淮阴工学院大学生实践创新训练计划项目(312414009)

摘　　要：以漂珠（FACs）为基体,采用化学镀法制得FACs/Ni–Fe–P复合粉体。分别采用扫描电镜、X射线光电子能谱仪、矢量网络分析仪等研究了FACs/Ni–Fe–P复合材料的微观形貌、组成、电磁特性和吸波性能。结果表明,镀覆后漂珠表面形成了均匀致密的Ni–Fe–P合金镀层。从[Ni2＋]∶[Fe2＋]为1∶1的镀液中制得的FACs/Ni–Fe–P复合粉体在2~18 GHz范围内具有较好的介电损耗和磁损耗性能。以FACs/Ni–Fe–P复合粉体为吸收剂的吸波材料厚度为1.5 mm时,其在15.1 GHz处的反射损耗峰值为-31.28 d B,反射损耗小于-20 d B的带宽为1.9 GHz。Electroless plating of Ni–Fe–P alloy was conducted with fly ash cenospheres（FACs） as substrates to form FACs/Ni–Fe–P composite powders. The micromorphology, composition, electromagnetic properties, and wave absorbability of FACs/Ni–Fe–P composite powders were studied by scanning electron microscope, X-ray photoelectron spectroscope, and vector network analyzer, respectively. It is shown that the Ni–Fe–P alloy coating formed on the surface of fly ash cenosphere is uniform and compact. The FACs/Ni–Fe–P composite powders prepared from the bath with a [Ni2＋]：[Fe2＋] ratio of 1：1 exhibit better dielectric loss and magnetic loss properties in the frequency range of 2-18 GHz. The absorbing material with a thickness of 1.5 mm using FACs/Ni–Fe–P composite powders as absorbent has a maximum reflection loss of-31.28 d B at 15.1 GHz, and the bandwidth is 19 GHz when its reflection loss is below-20 d B.

关 键 词：漂珠 镍–铁–磷合金 化学镀 电磁性能 吸波 

分 类 号：TQ153.2[化学工程—电化学工业]