机械高能球磨法制备表面多孔金属铝.pdfVIP

第 16 卷 　第 1 期 金属功能材料 Vol 16 , 　No 1 　　　　　　　 　　　　 　　　　　　　　　 　　　　 2 0 0 9 年 2 月 Met allic Functional Mat erial s February , 　2009 机械高能球磨法制备表面多孔金属铝 练绵炎 , 沈以赴 , 顾冬冬 (南京航空航天大学 , 南京 　2 11100) ( ) 摘 　要 : 将铸态块状纯铝连同聚四氟乙烯 P TF E 粉末放入球磨罐中进行机械球磨 , 除去残留于试样的聚四氟乙 ( ) 烯 P TF E 。用 XRD 分析试样的物相 ,用 SEM 分析试样的形貌 。实验结果表明 ,机械高能球磨法能够在试样表面 形成多孔结构 。并确定了较好的工艺参数 ,初步探讨了聚四氟乙烯在球磨过程中的作用 。电化学腐蚀试验检验了 腐蚀性能的变化 。 关键词 :多孔表面 ;纯铝块 ;高能球磨 ;聚四氟乙烯 中图分类号 : TB383 　　文献标识码 :A 　　文章编号 :1005 - 8192 (2009) 0 1 - 0020 - 05 Fabrication of Al uminum with Porous Surface by Mechanical Highenergy Ball Mill ing L IAN Mianyan , S H EN Yif u , GU Do ngdong (Nanj ing U niver sit y of Aeronautics and A st ronautics , Nanj ing 2 11100 , China) Abstract : The ca st aluminum block s were p ut toget her wit h t he P TF E pow der , which were mechanical milled by u sing a highener gy ball mill , t hen t he remainder P TF E on t he surfaces of t he sp ecimen s was removed The p hases and morp hology were mea sured and charact erized by Xray diff raction ( XRD) and scanning elect ron micro scop y ( SEM) resp ectively The result s show t hat porou s surface can be achieved on t he p ure aluminum by highener gy planet ary ball mill Confirming t he bett er p rocess p aramet er s , t he effect of t he P T EE during t he milling p rocess wa s al so di scu ssed The elect rochemical corro sion t est s were carried out to know t he change of corro sion p rop ert y Key words : porou s surfa