用正硅酸乙酯(TEOS)对羰基铁颗粒进行表面改性,用扫描电镜、矢量网络分析仪等,对羰基铁在2-18 GHz范围内改性效果和影响规律进行了研究.结果表明,包覆SiO2降低了羰基铁介电常数实部,但对磁导率实部影响较小;羰基铁的电磁匹配性能得到改善.
参考文献
| [1] | 孙社营.吸波材料及其在舰船上的应用[J].材料开发与应用,1996(04):43. |
| [2] | Feng Y B;Qiu T;Shen C Y .Absorbing properties and structural design of microwave absorbers based on carbonyl iron and barium ferrite[J].Journal of Magnetism and Magnetic Materials,2007,318:8. |
| [3] | Shen GZ;Xu M;Xu Z .Double-layer microwave absorber based on ferrite and short carbon fiber composites[J].Materials Chemistry and Physics,2007(2/3):268-272. |
| [4] | Yu M X;Li X C;Gong R Z et al.Magnetic properties of carbonyl iron fibers and their microwave absorbing characterization as the filer in polymer foams[J].Journal of Alloys and Compounds,2008,456:452. |
| [5] | Inyoung Kim;Seok Bae;Jongryoul Kim .Composition effect on high frequency properties of carbonyl-iron composites[J].Materials Letters,2008(17/18):3043-3046. |
| [6] | 刘建华,周新楣,李松梅.羰基铁/导电聚苯胺微管复合材料的电磁性能[J].复合材料学报,2005(03):70-74. |
| [7] | Morihiko Matsumoto;Yoshimori Miyata .Polymer absorbers containing magnetic particles: Effect of polymer permittivity on wave absorption in the quasi-microwave band[J].Journal of Applied Physics,2002(12):9635-9637. |
| [8] | 冯永宝,丘泰,李晓云,沈春英.羰基铁/三元乙丙橡胶复合材料的吸波性能[J].材料科学与工艺,2008(04):589-592. |
| [9] | 谢建良,陆传林,邓龙江.二氧化硅/片状金属磁粉壳核粒子制备及电磁特性[J].复合材料学报,2007(02):18-22. |
| [10] | 陈利阳,柳军,齐风华,胡靖元,张毅.SiO2对羰基铁/炭黑双层吸波涂层吸波性能的影响[J].材料开发与应用,2013(05):50-54. |
| [11] | 冯丽萍,徐新.白宝石上生长SiO2薄膜的工艺[J].材料开发与应用,2005(03):32-35. |
| [12] | 谢建良,梁波浪,邓龙江.二氧化硅包覆片状金属磁性微粉电磁特性分析[J].功能材料,2008(01):41-43,47. |
| [13] | Yuchang, Q.;Wancheng, Z.;Shu, J.;Fa, L.;Dongmei, Z. .Microwave electromagnetic property of SiO_2-coated carbonyl iron particles with higher oxidation resistance[J].Physica, B. Condensed Matter,2011(4):777-780. |
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