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FePt/Co纳米复合颗粒的制备及微观结构的研究
Authors
亓雨生
封文江
杜娟
边宝茹
Publication date
1 January 2017
Publisher
Abstract
纳米双相复合磁体是永磁材料研究的热门领域,具有L10结构的FePt凭借高的磁晶各向异性、稳定的化学性质、高的矫顽力,成为纳米双相复合中硬磁相的首选。将Fe、Pt的无机金属盐作为前驱体与NaCl进行球磨混合,在还原性气氛环境中进行不同温度的热分解处理,制备分散性较好、颗粒尺寸分布均匀的单相L10-FePt,然后通过热分解软磁相Co的前驱体CoCl2·6H2O,使其均匀包覆在FePt纳米颗粒上,制备出磁性能优良的FePt/Co纳米复合颗粒。振动样品磁强计Lake shore 7410测试表明样品具有优良的磁性能,通过X射线粉末衍射证明成分为FePt、Co,通过透射电镜对样品的形貌进行观测,证明FePt/Co双相复合结构形成
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Last time updated on 22/01/2018