魏智强,杨晓红,杨华,夏天东,闫鹏勋

• 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:兰州理工大学理学院
• 3:兰州大学物理科学与技术学院

摘要(Abstract)：

采用约束弧等离子体方法成功制备了高纯铝纳米粉末,利用X射线衍射(XRD)、透射电镜(TEM)和相应选区电子衍射(SAED)对样品的晶体结构、形貌、粒度进行性能表征。对约束弧等离子体方法制备金属纳米粉的形成和长大过程进行了分析,并对制备过程中工艺参数(气体种类和压力、电弧电流等)对纳米粉产率及粒度的影响规律进行了讨论。实验结果表明:本法所制备的铝纳米粉末的晶体结构为fcc结构的晶态,呈规则的球形。适当控制某些工艺参数就能制取粒径在20~100 nm的纳米粉,在其它工艺参数一定时,随着工作气压升高、电流强度的增加,产率和平均粒径都随之增大。

关键词(KeyWords)： 铝纳米粉;约束弧等离子体;粒度;工艺参数;制备

Abstract:

Keywords:

基金项目(Foundation): 教育部科学技术研究重点项目(208151);; 甘肃省自然科学基金(2007GS04821);; 兰州理工大学科研发展基金(SB10200805)

作者(Author): 魏智强,杨晓红,杨华,夏天东,闫鹏勋

DOI: 10.13289/j.issn.1009-6264.2010.02.003

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