采用硫酸盐与氢氧化钠沸腾回流共沉淀法制备的锰锌铁氧体纳米粉体,通过XRD、VSM和激光粒度分析对不同温度预烧粉体进行了物相、磁学性能、粉体粒度的研究,同时研究了这些粉体经过成型,烧结,所得到环形烧结体的磁感应强度和微观结构.结果表明:预烧温度为600℃时,饱和磁化强度为59.36 emu/g,而600℃预烧的粉体经过成型,在1000℃烧结所得到的环形烧结体,室温时饱和磁感应强度Bs为0.417 T,微观结构匀称,缺陷较少,空洞较少,晶粒大小在3 μm左右.
参考文献
[1] | 陆明岳.MnZn铁氧体最新进展及其发展趋势[J].磁性材料及器件,2001(05):27-33. |
[2] | Kobayashi O S .Mn-Zn Ferrites Having High Initial Magnetic Permeability and Their Manufacture[P].JP:2001220222,2001. |
[3] | Chiba T .Low-loss Oxide Magnetic Material[P].JP:1064717,1998. |
[4] | Goto S S;Soga N .Manganese Zinc Ferrite-based Magnetic Material with High Magnetic Permeability and Its Manufacture[P].JP:1050512,1998. |
[5] | Nakamura T.;Okano Y. .ELECTROMAGNETIC PROPERTIES OF MN-ZN FERRITE SINTERED CERAMICS[J].Journal of Applied Physics,1996(9):7129-7133. |
[6] | Kilbride I P;Freer R .Effect of Sintering Enclosures and Sintering Parameters on the Magnetic Properties of a High Permeability Manganese-zinc Ferrites[J].IEEE Trans Mater,2000,36(01):375-380. |
[7] | 席国喜,路迈西.锰锌铁氧体材料的制备研究新进展[J].人工晶体学报,2005(01):164-168. |
[8] | C. Rath;K.K. Sahu .Preparation and characterization of nanosize Mn-Zn ferrite[J].Journal of Magnetism and Magnetic Materials,1999(1):77-84. |
[9] | 华程,毛健,莫红军,罗强华,刘颖,涂铭旌.预烧对锰锌铁氧体预烧相及烧结显微结构的影响[J].磁性材料及器件,2007(01):34-36. |
[10] | Rozman M.;Drofenik M. .Sintering of nanosized MnZn ferrite powders[J].Journal of the American Ceramic Society,1998(7):1757-1764. |
[11] | 吴卫和,王德平,姚爱华,黄文旵,周萘.热处理温度对纳米Mn-Zn铁氧体微粒的Ms、Hc的影响[J].功能材料,2006(10):1551-1553,160. |
[12] | 夏立方;张振信.金属中的扩散[M].哈尔滨:哈尔滨工业大学出版社,1988:65-70. |
[13] | 向军,沈湘黔,朱永伟.锰锌铁氧体空心纤维的制备及其磁性能[J].硅酸盐学报,2009(01):6-11. |
[14] | 严密;彭晓领.磁学基础与磁性材料[M].杭州:浙江大学出版社,2006:113-116. |
[15] | Sattar A A;El-Sayed H M;El-Shokrofy K M et al.Improvement of the Magnetic Properties of Mn-Ni-Zn Ferrite by the Nonmagnetic Al3 +-ion Substitution[J].Journal of Applied Sciences,2005,5:162-168. |
[16] | Chao Liu;Z.John Zhang .Size-Dependent Superparamagnetic Properties of Mn Spinel Ferrite Nanoparticles Synthesized from Reverse Micelles[J].Chemistry of Materials,2001(6):2092-2096. |
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:
-
10%
-
20%
-
30%
-
40%
-
50%