周琦,周全,张兵,贾建刚,吴海涛

• 1:兰州理工大学甘肃省有色金属新材料重点实验室
• 2:兰州理工大学材料科学与工程学院

摘要(Abstract)：

采用快速凝固与去合金化相结合的方法制备纳米多孔铜,用XRD、SEM分析样品的相组成和微观形貌,研究前驱体Al-Cu合金成分对纳米多孔铜微观结构及Al2 Cu、AlCu协同性腐蚀的影响。结果表明:Cu原子分数为33%时,去合金化后形成具有双连续结构的纳米多孔铜;Cu原子分数为38%时,形成比表面积更高、更均匀细小的双连续结构纳米多孔铜,平均孔径尺寸约100～150 nm,平均系带尺寸约50～80 nm;Cu原子分数为43%时,形成了双连续结构的纳米多孔铜并在其中分散着纳米颗粒聚集体;Cu原子分数为50%时,形成了纳米颗粒聚集的纳米多孔铜。实验发现,Al2 Cu、AlCu腐蚀的协同作用对双连续结构的形貌有重要的影响。

关键词(KeyWords)： 快速凝固;去合金化;纳米多孔铜;双连续结构

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51001057);; 国家大学生创新性实验计划项目(101073104)

作者(Author): 周琦,周全,张兵,贾建刚,吴海涛

DOI: 10.13289/j.issn.1009-6264.2013.03.002

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