电子元件与材料2026，Vol.45Issue(5)：501-508,8.DOI:10.14106/j.cnki.1001-2028.2026.0063
阳极氧化铝生长速率的定量描述和纳米纤维的形成过程
Quantitative description of the growth rate of porous anodic alumina and the formation process of nanofibers
摘要
Abstract
The field-assisted dissolution(FAD)theory is widely accepted in the anodization of diverse metals,yet it fails to quantitatively clarify the correlation between current-time curves and the growth rate of porous anodic alumina(PAA).In this work,PAA was prepared via constant-voltage anodization in the identical H3 PO4 electrolyte.The average growth rates per unit charge under anodization voltages of 40 V,60 V and 70 V were 62 nm/C,64 nm/C and 72 nm/C,respectively.The average growth rates per unit time were 149 nm/min,673 nm/min and 876 nm/min,respectively.The results reveal that the growth rate of PAA is governed by the anodizing current and charge consumed in the anodizing process,which is inconsistent with the conventional FAD theory.Meanwhile,the process by which PAA channels evolve into nanofibers was explained using the theories of ionic current and electronic current as well as the oxygen bubble model.These new viewpoints offer valuable guidance for the preparation and formation mechanism of porous anodic oxides.关键词
阳极氧化/多孔阳极氧化铝/形成机理/氧气气泡模型Key words
anodization/porous anodic alumina/formation mechanism/oxygen bubble model分类
信息技术与安全科学引用本文复制引用
任叙周,李鹏泽,钱鹏,宋晔,刘霖..阳极氧化铝生长速率的定量描述和纳米纤维的形成过程[J].电子元件与材料,2026,45(5):501-508,8.基金项目
国家自然科学基金(61171043,51777097) （61171043,51777097）
