碳纤维表面α-Fe的MOCVD生长制备及吸波性能研究

doi:10.3724/SP.J.1077.2013.13155

无机材料学报 ›› 2013, Vol. 28 ›› Issue (12): 1328-1332.DOI: 10.3724/SP.J.1077.2013.13155 CSTR: 32189.14.SP.J.1077.2013.13155

碳纤维表面α-Fe的MOCVD生长制备及吸波性能研究

刘渊, 刘祥萱, 陈鑫, 王煊军

(第二炮兵工程大学 603教研室, 西安 710025)

收稿日期:2013-03-16 修回日期:2013-05-10 出版日期:2013-12-20 网络出版日期:2013-11-15
作者简介:刘渊(1986-), 男, 博士研究生. E-mail:liuyuanbixue@163.com
基金资助:
陕西省自然科学基金(2011JQ2007)

Preparation by MOCVD and Microwave Absorbing Properties of CF@Fe

LIU Yuan, LIU Xiang-Xuan, CHEN Xin, WANG Xuan-Jun

(1. No. 603 Faculty, Xi‘an Research Institute of High Technology, Xi’an 710025, China)

Received:2013-03-16 Revised:2013-05-10 Published:2013-12-20 Online:2013-11-15
About author:LIU Yuan. E-mail:liuyuanbixue@163.com
Supported by:
Shaan Xi Natural Science Foundation (2011JQ2007)

摘要/Abstract

摘要： 以Fe(CO)₅为前驱体, 通过金属有机化学气相沉积((MOCVD))工艺在碳纤维(CF)表面沉积连续α-Fe膜, 从而制得CF@Fe复合材料。用X射线衍射仪、扫描电子显微镜和矢量网络分析仪对粉末的结构及电磁性能进行表征, 并对其吸波性能进行研究。结果表明: 碳纤维表面沉积的膜层为纯α-Fe相, 厚度约为0. 7 μm, 沉积薄膜比较均匀完整地覆盖在碳纤维表面, 没有裂纹、孔洞等明显缺陷; 碳纤维表面沉积α-Fe膜后, 其电磁性能发生了明显改变, 吸波能力有了较好改善; 利用测得的同轴环样品的电磁参数, 模拟计算出CF及CF@Fe涂层在厚度d=2 mm条件下的反射率曲线, 可以看出, 沉积连续α-Fe膜后使得样品的吸收峰向高频移动, 最小反射率峰值减小, 小于-10 dB 的频宽增加4.2 GHz。

关键词: 羰基铁, 金属有机化学气相沉积(MOCVD), 碳纤维, 吸波性能

Abstract: The CF@Fe composites were prepared by depositing precusor Fe(CO)₅ on carbon fiber (CF) to form continuous α-Fe film through metal organic chemical vapor deposition (MOCVD) process. The X-ray diffraction (XRD), scanning electron microscope (SEM) and a vector network analyzer were used to characterize the structure and electromagnetic properties of the powder and to study absorbing properties, The results showed that the film layer deposited on the surface of carbon fibers was pure α-Fe phase, at about 0.7 μm in thickness. After being deposited by consecutive α-Fe film, the CF electromagnetic properties changed significantly with the absorbing capacity being improved. By using electromagnetic parameters of the coaxial ring samples, the reflectance curves of the CF and CF@Fe coating at thickness of 2 mm were calculated, The curves showed that absorption peak of the samples deposited by the consecutive α-Fe film moved to the high frequency, the value of the minimum reflection peak reduced, and the bandwidth (less than -10 dB) increased 4.2 GHz.

Key words: carbonyl iron, metal organic chemical vapor deposition (MOCVD), carbon fiber, microwave absorb

中图分类号:

TB383
TM277

刘渊, 刘祥萱, 陈鑫, 王煊军. 碳纤维表面α-Fe的MOCVD生长制备及吸波性能研究[J]. 无机材料学报, 2013, 28(12): 1328-1332.

LIU Yuan, LIU Xiang-Xuan, CHEN Xin, WANG Xuan-Jun. Preparation by MOCVD and Microwave Absorbing Properties of CF@Fe[J]. Journal of Inorganic Materials, 2013, 28(12): 1328-1332.

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碳纤维表面α-Fe的MOCVD生长制备及吸波性能研究

Preparation by MOCVD and Microwave Absorbing Properties of CF@Fe

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