您目前所在的位置:首页 - 期刊简介 - 详细页面

铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 13    No. 2    April 2003

[PDF Download]    [Flash Online]

    

Fabrication of anodized aluminum oxide membrane with nanometer pores
ZHANG Zheng-fu(张正富), YANG Xian-wan(杨显万), 
ZHAO Yun-cheng(赵云臣), CHEN Qing-hua(陈庆华), SUN Jun-sai(孙俊赛) 

Faculty of Material and Metallurgy Engineering, 
Kunming University of Science and Technology,Kunming 650093, China

Abstract:The pure aluminum and Al-Mg-Mn alloy were anodized in 4%, 10% and 18.5% phosphoric acid solution, respectively. As for pure Al, the maximum thickness of anodized aluminum oxide (AAO) membrane, 216nm, is obtained by being anodized in 4% solution. Its average pore diameter is around 70nm, and pore density exceeds 1010/cm2. Under the same technology condition, the membrane thickness decreases with increment of electrolyte content. TEM images show that element Mg or Mn added into aluminum alloy can damage the integration of AAO membrane. During anodizing of aluminum, the formed oxide layer is amorphous. After being annealed at 600℃ for 24h, it is still amorphous. However, when membrane is annealed at 930℃, the amorphous oxide begins to transform to γ-Al2O3 .

 

Key words:  anodized aluminum oxide; nanopore; phosphoric acid; membrane; alloying element; annealing

ISSN 1672-7029
CN 43-1423/U

主管:中华人民共和国教育部 主办:中南大学 中国铁道学会 承办:中南大学
湘ICP备09001153号 版权所有:《铁道科学与工程学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市韶山南路22号 邮编:410075
电 话:0731-82655133,82656174   传真:0731-82655133   电子邮箱:jrse@mail.csu.edu.cn