功能材料与器件学报
功能材料與器件學報
공능재료여기건학보
JOURNAL OF FUNCTIONAL MATERIALS AND DEVICES
2009年
6期
569-574
,共6页
溶胶凝胶法%Z型铁氧体%磁性能%电磁性能%吸波特性
溶膠凝膠法%Z型鐵氧體%磁性能%電磁性能%吸波特性
용효응효법%Z형철양체%자성능%전자성능%흡파특성
sol-gel method%Z type ferrite%magnetic property%Electromagnetic property%microwave absorbing property
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.
利用檸檬痠溶膠-凝膠法閤成瞭鋅摻雜Sr_3(Zn_xCo_(1-x))_2Fe_(24)O_(41),(x=0～0.8)的Z型鐵氧體.測試其結構、磁性能、電磁性能與吸波特性.實驗結果錶明,適量摻雜Zn~(2+)有利于磁性能及吸波性能的改善,在x=0.2時比飽和磁化彊度最大,可達51.36 A·m~2·kg~(-1);吸波性能優良,最大吸收量為35.12dB;閤成最佳溫度為1200℃燒結2小時.
이용저몽산용효-응효법합성료자참잡Sr_3(Zn_xCo_(1-x))_2Fe_(24)O_(41),(x=0～0.8)적Z형철양체.측시기결구、자성능、전자성능여흡파특성.실험결과표명,괄량참잡Zn~(2+)유리우자성능급흡파성능적개선,재x=0.2시비포화자화강도최대,가체51.36 A·m~2·kg~(-1);흡파성능우량,최대흡수량위35.12dB;합성최가온도위1200℃소결2소시.
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.
