王磊,李智东,赵昆渝

• 1:昆明理工大学材料科学与工程学院先进功能陶瓷材料实验室

摘要(Abstract)：

以新鲜鸡蛋清作为复合络合剂,利用蛋清合成Ni0.6Cu0.4Fe2O4尖晶石铁氧体粉体。此方法反应条件温和、工艺简单、成本低廉,且容易控制。通过X射线衍射仪(XRD)和透射电子显微镜(TEM)分析样品的微观结构和形貌特征,并结合差热-热重联合分析仪(TG-DTA)研究样品的晶化过程,用激光粒度仪(LPSA)测量样品的粒度分布,用振动磁强计(VSM)测量样品在室温下的磁学性能参数。结果表明:Ni0.6Cu0.4Fe2O4氧体粉体较佳的制备工艺参数为采用两阶段式的烧结工艺:240℃保温1 h,升温至440℃保温2 h,最终介于520~550℃焙烧6 h。在该条件下合成得到的Ni0.6Cu0.4Fe2O4铁氧体粉体为纳米级的、单相的,平均晶粒尺寸约为16.31 nm,平均颗粒尺寸约为2.19μm,饱和磁化强度可达37 emu/g,平均矫顽力为68.53 Oe。

关键词(KeyWords)： Ni-Cu铁氧体;蛋清;低温烧结;粉体;工艺

Abstract:

Keywords:

基金项目(Foundation): 云南省分析测试基金(20130822)

作者(Author): 王磊,李智东,赵昆渝

DOI: 10.13289/j.issn.1009-6264.2014.11.005

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