采用高真空电弧熔炼和高能球磨相结合的方法制备Dy-Fe-Co和Dy-Fe-Co-Al合金微粉,利用X射线衍射技术(XRD)、扫描电镜分析方法(SEM)和矢量网络分析仪对合金粉的相结构、颗粒形貌和吸波性能进行分析.研究发现:随着Dy的添加,DyxFe90-xCo10(x=6,9,12)合金的吸收峰从低频向高频移动;在低频端,Dy6Fe84Co10合金的微波吸收性能优于其他合金,在d=1.8mm厚度下,其吸收峰出现在3.6 GHz处,峰值达到-6.7 dB;Al的适当添加可有效改善Fe-Co合金在低频端的微波吸收性能.在d=1.8mm厚度下,Dy12Fe70Co10Al8合金的吸收峰在5.4 GHz处,峰值达到-9.2dB,在3~6 GHz频率范围内其微波吸收性能优于Dy12Fe78Co10合金.
参考文献
[1] | Liu Shunhua;Liu Junmin;Dong Xinglong.Electromagnetic Shielding and Absorbing Materials[M].北京:化学工业出版社,2007 |
[2] | Lee K S;Yun Y C;Jeong I B et al.[J].Materials Science Forum,2007,534-536:1465. |
[3] | Xing Liying.Concealmental Materials[M].北京:化学工业出版社,2004:39. |
[4] | Liao J S;Feng Z K;Qiu J et al.[J].Acta Metall,2008,21(06):419. |
[5] | Hu Shiqi;Lin Peihao;Pan Shunkang .[J].Electronic Components and Materials(电子元件与材料,2012,31(07):55. |
[6] | Zhang Xuefeng;Li Zhenan;Wang Weina et al.[J].Powder Metallurgy Industry(粉末冶金工业),2006,16(01):11. |
[7] | Wang X;Gong R Z;Luo H .[J].Journal Alloys and Compounds,2009,480(02):761. |
[8] | Pan Shunkang;Wang Xiaokun;Liu Fangli et al.[J].Journal of Guilin University of Electronic Technology(桂林电子科技大学学报),2010,30(05):493. |
[9] | Yan, S.J.;Zhen, L.;Xu, C.Y.;Jiang, J.T.;Shao, W.Z.;Tang, J.K. .Synthesis, characterization and electromagnetic properties of Fe _(1-x)Co_x alloy flower-like microparticles[J].Journal of Magnetism and Magnetic Materials,2011(5):515-520. |
[10] | Wang J;Zhang H;Bai S X et al.[J].Journal of Magnetism and Magnetic Materials,2007,312(02):310. |
[11] | Huang Shengxiang;Ding Li;Deng Lianwen et al.[J].Materials Science and Engineering of Powder Metallurgy(粉末冶金材料科学与工程),2010,16(04):553. |
[12] | Sun C;Sun KN .Preparation and microwave absorption properties of Ce-substituted lithium ferrite[J].Solid State Communications,2007(26):258-261. |
[13] | Horikawa T;Miura K;Itoh M et al.[J].Journal of Alloys and Compounds,2006,408-412(09):1386. |
[14] | Zhou T D;Liang D F;Deng L J et al.[J].JMater Sci Technol,2011,27(02):170. |
[15] | Yang Zhimin;Mao Changhui;Yang Jian et al.[J].Chinese Journal of Rare Metals(稀有金属),2004,28(06):1006. |
[16] | Liao Saobin.Ferro-Magnetism[M].北京:科学出版社,1988:41. |
[17] | Groot C H;Buschow K H J;Boer F R .[J].PHYSICA B,1997,229(3-4):213. |
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