南峰,贾建刚,安亮,马勤,郭铁明,季根顺

• 1:兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室
• 2:兰州理工大学有色金属合金省部共建教育部重点实验室

摘要(Abstract)：

以Fe2O3粉、Si粉和Al粉为原料,采用反应机械合金化/退火法制备出了Al2O3/Fe3Si纳米复合粉体。利用X射线衍射仪(XRD)和扫描电子显微镜(SEM)对复合粉体球磨以及退火过程中的固态反应过程、表面形貌进行表征。研究表明,Fe2O3-Si-Al混合粉体球磨5 h后发生反应生成Al2 O3、Fe5 Si3、Fe3 Si、FeSi,球磨20 h后生成Al2 O3/Fe3 Si,球磨20 h的粉体在900℃条件下退火1 h的组成物相未发生变化,复合粉体颗粒呈球形,其尺寸为5μm左右,分布均匀,组成相Al2O3和Fe3Si的晶粒尺寸分别为26.6 nm和28.3 nm。

关键词(KeyWords)： Fe3Si;Al2O3;反应机械合金化;退火;纳米复合粉体

Abstract:

Keywords:

基金项目(Foundation): 青年科学基金项目(51001057)

作者(Author): 南峰,贾建刚,安亮,马勤,郭铁明,季根顺

DOI: 10.13289/j.issn.1009-6264.2011.08.007

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