东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2008, Vol. 29 ›› Issue (3): 354-357.DOI: -

• 论著 • 上一篇    下一篇

磁介质吸波剂/多孔金属材料吸波性能

刘欣;薛向欣;刘宇;张瑜;   

  1. 东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院 辽宁 沈阳 110004;辽宁 沈阳 110004;辽宁 沈阳 110004;辽宁 沈阳 110004
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2008-03-15 发布日期:2013-06-22
  • 通讯作者: Liu, X.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金(75102192)．

Wave absorbability of porous metal coated with magnetic medium absorbent

Liu, Xin (1); Xue, Xiang-Xin (1); Liu, Yu (1); Zhang, Yu (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2008-03-15 Published:2013-06-22
  • Contact: Liu, X.
  • About author:-
  • Supported by:
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摘要： 为了研究磁介质吸波剂/多孔金属材料吸波性能,在泡沫铝合金表面涂覆了Ni-Zn铁氧体(CFe)、羰基镍粉(CNi)以及二者的复合粉,利用GJB 2038—94"雷达吸波材料反射率测试方法"中的雷达截面(RCS)法对该材料的微波反射率进行了测量.结果表明,在12～18GHz频段内,复合磁介质吸波剂/泡沫铝材料吸波性能介于单一吸波剂样品CFe与CNi之间;在26.5～40 GHz频段内,羰基镍质量分数为40%的泡沫铝复合材料吸波性能最好,当其质量分数大于40%时,材料吸波性能逐渐降低.因此,在泡沫铝合金表面涂覆适当比例的Ni-Zn铁氧体与羰基镍复合粉,可以进一步改善材料的吸波性能.

关键词: 多孔金属, 泡沫铝, 磁介质吸波剂, 吸波性能, 复合材料

Abstract: Studies on the wave absorbability of magnetic medium absorbent/Al-alloy foams of which the surface were separately coated with Ni-Zn ferrite (CFe), nickel carbonyl (CNi) and the powdered compound of them. The coated Al-alloy foams were tested according to the Standard GJB 2038-94 'method to test the reflectivity of radar wave absorbing materials', i.e., the RCS (radar cross-section) method. The results indicated that in the 12-18 GHz band the wave absorbability of Al-alloy foams materials coated powder compound absorbent is founded between that of Al-alloy foams samples CFe and CNi which were coated with single absorbents samples. But in the 26.5-40.0 GHz band, the best wave absorbability belongs to Al-alloy foams coated powder compound absorbent in which the nickel carbonyl content is 40wt%, and the absorbability goes down gradually if the nickel carbonyl content is higher than 40wt%. So, the absorbability of Al-alloy foams coated powder compound of Ni-Zn ferrite in reasonable proportion to nickel carbonyl is available to be improved.

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