回流法制备纳米 NiZn铁氧体及成相机理研究
收稿日期: 2005-11-22
修回日期: 2006-02-08
网络出版日期: 2006-11-20
Nanocrystalline NiZn Ferrite Prepared by Refluxing Method and Mechanism of Spinel Formation
Received date: 2005-11-22
Revised date: 2006-02-08
Online published: 2006-11-20
钟海胜 , 李强 , 张一玲 , 钟志锋 , 张阳 . 回流法制备纳米 NiZn铁氧体及成相机理研究[J]. 无机材料学报, 2006 , 21(6) : 1477 -1481 . DOI: 10.3724/SP.J.1077.2006.01477
Nanocrystalline NiZn ferrite powders with spinel structure were prepared by a new chemical method---refluxing method. Refluxing time and the mechanism of NiZn ferrite spinel formation were discussed based on the XRD analysis and pH value measurement. The results show that the optimum refluxing time is 6h. The particle sizes of Ni0.5Zn0.5Fe2O4 nano-powders prepared by the refluxing method are about 10~20nm with TEM analysis, and the results of HRTEM AND SAED approve that Ni0.5Zn0.5Fe2O4 nano-powders prepared are with the single spinel phase. VSM results reveal that the prepared Ni0.5Zn0.5Fe2O4 powder has typical soft magnetic characteristics.
Key words: refluxing method; NiZn ferrite; spinel
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