中国有色金属学会会刊(英文版)
中國有色金屬學會會刊(英文版)
중국유색금속학회회간(영문판)
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
2003年
2期
298-301
,共4页
张正富%杨显万%赵云臣%陈庆华%孙俊赛
張正富%楊顯萬%趙雲臣%陳慶華%孫俊賽
장정부%양현만%조운신%진경화%손준새
anodized aluminum oxide%nanopore%phosphoric acid%membrane%alloying element%annealing
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.
