欢迎登录材料期刊网

材料期刊网

高级检索

采用溶胶-凝胶工艺制备了Ni0.4Co0.24Zn0.36LaxFe2-xO4铁氧体,利用XRD和微波网络矢量分析仪对其相成分和吸收特性进行研究,实验发现:适量掺杂镧时能够增大吸收频带宽度,改善吸收性能;当x =0.07时,最大吸收可达38.55dB,几乎在整个频段内吸收量都大于15dB,这非常有利于作为高频吸波材料.通过对Ni0.4Co0.24Zn0.36La0.07Fe1.93O4铁氧体烧结温度的分析,发现在1000℃烧结,晶粒只有80nm左右,吸收性能最好.

参考文献

[1] Satoshi Sugimoto;Kazuaki Haga;Toshio Kagotani et al.Microwave absorption properties of Ba M-type ferrite prepared by a modified copreeipitation method[J].Journal of Magnetism and Magnetic Materials,2005,290-291:1181-1191.
[2] Bueno AR;Gregori ML;Nobrega MCS .Microwave-absorbing properties of Ni0.50-xZn0.50-xMe2xFe2O4 (Me = Cu, Mn, Mg) ferrite-wax composite in X-band frequencies[J].Journal of Magnetism and Magnetic Materials,2008(6):864-870.
[3] Cheng-Hsiung Peng;Chyi-Ching Hwang;Jun Wan et al.Microwave-absorbing characteristics for the composites of thermal-plastic polyurethane (TPU)-bond NiZn-ferrites prepared by combustion synthesis method[J].Materials Science and Engineering B:Solid-state materials for advanced technology,2005,117:27-36.
[4] Lima U R;Nasar M C;Rezende M C et al.Synthesis of NiCuZn ferrite nanoparticles and microwave absorption characefization[J].Materials Science and Engineering B:Solid-state materials for advanced technology,2008,320:1146-1150.
[5] JianLiang Xie;Mangui Han;Liang Chen;Renxiong Kuang;Longjiang Deng .Microwave-absorbing properties of NiCoZn spinel ferrites[J].Journal of Magnetism and Magnetic Materials,2007(1):37-42.
[6] Sun JJ.;Li HB.;Sun GL. .Effects of La2O3 and Gd2O3 on some properties of Ni-Zn ferrite[J].Journal of Magnetism and Magnetic Materials,2002(1/3):20-24.
[7] Anna Gruskova;Jozef Slama;Rastislav Dosoudil et al.Microwave properties of some substituted LiZn ferrites[J].Journal of Magnetism and Magnetic Materials,2008,320:860-864.
[8] Yeon Hwang .Microwave absorbing properties of NiZn-ferrite synthesized from waste iron oxide catalyst[J].Materials Letters,2006(27):3277-3280.
[9] 张伟,李国栋,孙银凤.溶胶-凝胶自燃烧法合成镍铜锌纳米晶铁氧体及其吸波性能的研究[J].稀土,2007(04):43-46.
[10] 过壁君;冯则坤;邓龙江.磁性薄膜与磁性粉体[M].成都:电子科技大学出版社,1994:165-178.
[11] 蒋仁培;魏克珠.微波铁氧体理论与技术[M].北京:科学出版社,1982:254-266.
[12] 焦明春,李国栋.纳米镍铜铁氧体粒子的制备与微波吸收特性研究[J].功能材料,2005(02):295-297.
[13] Guozhu Shen;Zheng Xu;Yi Li .Absorbing properties and structural design of microwave absorbers based on W-type La-doped ferrite and carbon fiber composites[J].Journal of Magnetism and Magnetic Materials,2006(2):325-330.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%