|Alternative Title||The study of NiCuZn ferrite prepared by sol-gel method
|Place of Conferral||兰州
②铁含量x=2.0的正分配比NiZnCu铁氧体1000℃保温3小时的预烧料的静态磁性能最优,矫顽力约为8.4 Oe,比饱和磁化强度达到78.0 emu/g。
①1000 ℃下烧结的x=2.0材料静态磁性能最优，矫顽力为1.5 Oe，饱和磁化强度为79.5 emu/g。
②1000 ℃下烧结的x=1.8材料的起始磁导率最高，接近125，截止频率约为20 MHz。随x增大，磁导率降低、截止频率提高，x=2.1和2.2时，截止频率高于100 MHz。|
|Other Abstract||The thesis focuses on the effects of iron content and heat treatment temperature on the properties of NiCuZn ferrite material. Some significant results have been obtained.
①Ni0.4Cu0.2Zn0.4FexO4 powder materials prepared by sol-gel method form pure spinel phase when the heat treatment temperature exceeds 750 ℃.
②The presintering powder with better magnetic properties was obtained when the samples were presintered at 1000 ℃ for 3 hours and the content of Fe (x) was 2.0. The coercivity is about 8.4 Oe, and the saturation magnetization is 78.0 emu/g.
①The powder with better magnetic properties was obtained when the samples were sintered at 1000 ℃ and the content of Fe (x) was 2.0. The coercivity is about 1.5 Oe, and the saturation magnetization is 79.5 emu/g.
②When x is 1.8 and the sintering temperature is 1000℃, the initial permeability of material is the highest, close to 125, and the roll-off frequency is about 20 MHz. As x increases, the initial permeability decreases, but the roll-off frequency of sample increases. When x=2.1 and 2.2, the roll-off frequency is bigger than 100 MHz.|
于国建. 溶胶凝胶法制备NiCuZn铁氧体的研究[D]. 兰州. 兰州大学,2013.
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.