利用柠檬酸溶胶-凝胶法合成了锌掺杂Sr_3(Zn_xCo_(1-x))_2Fe_(24)O_(41),(x=0～0.8)的Z型铁氧体.测试其结构、磁性能、电磁性能与吸波特性.实验结果表明,适量掺杂Zn~(2+)有利于磁性能及吸波性能的改善,在x=0.2时比饱和磁化强度最大,可达51.36 A·m~2·kg~(-1);吸波性能优良,最大吸收量为35.12dB;合成最佳温度为1200℃烧结2小时.
Z type hexaferrite doped with Zn,Sr_3(Zn_xCo_(1-x))_2Fe(_24)O_(41),(x=0～0.8)micro-crystals were synthesized through a citric acid sol-gel method.Their crystal structure,magnetic property,electromagnetic property and microwave absorbing property were studied.The result show that doping with Zn~(2+) appropriately could conduce to the improvement of magnetic properties and absorbing properties.Specific saturation magnetization of Sr_3(Zn_xCo_(1-x))_2Fe(_24)O_(41) had a maximum which is 51.36 A·m~2·kg~(-1)at x=0.2;Absorption quantity of Sr_3(Zn_xCo_(1-x))_2Fe_(24)O_(41) had a maximum which is 35.12dB at x=0.2 aswell;The micro-crystal powders were obtained at 1200℃ and were sintered 2h.
参考文献
| [1] | 孙银凤,李国栋,张常在,杜敏生.稀土Z型铁氧体Ba3-xCexCo2Fe24O41的制备及其微波吸收性能[J].中国稀土学报,2006(z1):152-155. |
| [2] | 甘树才,李红英,孟健,洪广言.溶胶-凝胶法合成稀土Z型铁氧体Ba3-xLaxCo2Fe24O41与表征[J].中国稀土学报,2004(06):751-754. |
| [3] | 李红英,施伟光,甘树才.稀土六方Z型铁氧体Ba3-xLaxCo2Fe24O41的合成及电磁性能与吸波特性[J].吉林大学学报（工学版）,2006(06):856-860. |
| [4] | Yukio Takada;Takashi Nakagawa;Masatoshi Tokunaga;Yasunari Fukuta;Takayoshi Tanaka;Takao A. Yamamoto;Takeshi Tachibana;Shinji Kawano;Yoshinobu Ishii;Naoki Igawa .Crystal and magnetic structures and their temperature dependence of Co_(2)Z-type hexaferrite (Ba,Sr)_(3)Co_(2)Fe_(24)O_(41) by high-temperature neutron diffraction[J].Journal of Applied Physics,2006(4):043904-1-043904-7-0. |
| [5] | R C Pullarl;A K Bhattacharya .The synthesis and characterization of the hexagonal Z ferrite,Sr_3 Co_2 Fe_(24)O_(41),from a sol-gel precursor[J].Materials Research Bulletin,2001,36:1533. |
| [6] | 李洪桂 .稀十掺杂磁铅石型钡铁氧体超细粉末的制备及其磁性研究[D].长沙:中南大学,2001. |
| [7] | 谭小平,古映莹.尖晶石型超微铁氧体粉末合成方法进展[J].磁性材料及器件,2002(04):17-20. |
| [8] | 王长振,谭维,周甘宇,章四琪.锰锌铁氧体粉制备技术综述[J].中国锰业,2002(03):37-41. |
| [9] | 李茹民 .掺杂纳米铁氧体的合成与磁性能研究[D].哈尔滨工程大学,2007. |
| [10] | Kane M H;Shalini K;Summers C J et al.Magnetic properties of bulk Zn 1-x Mn xO and Zn 1-X Co xO sinsle crystals[J].Journal of Applied Physics,2005,97(02):023906. |
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