2007
DOI: 10.1134/s1063739707060054
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Self-organized growth mechanism for porous aluminum anodic oxide

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Cited by 5 publications
(7 citation statements)
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“…[40][41][42] This model was challenged recently by a field assisted flow model in which an anodic oxide film was believed to grow via a viscous flow at the pore base towards the pore wall. [43][44][45] There are also a large number of reports regarding the self-ordering mechanism of hexagonal pore arrays for anodic metal oxide, [46][47][48][49][50][51] and the transition from nanoporous continuous films to separated nanotube arrays. 52,53 In order to fully understand the electrochemical process of anodization, the driving force for the pore ordering, controlling factors for film morphology, will have to be investigated in more detail.…”
Section: Zixue Sumentioning
confidence: 99%
See 1 more Smart Citation
“…[40][41][42] This model was challenged recently by a field assisted flow model in which an anodic oxide film was believed to grow via a viscous flow at the pore base towards the pore wall. [43][44][45] There are also a large number of reports regarding the self-ordering mechanism of hexagonal pore arrays for anodic metal oxide, [46][47][48][49][50][51] and the transition from nanoporous continuous films to separated nanotube arrays. 52,53 In order to fully understand the electrochemical process of anodization, the driving force for the pore ordering, controlling factors for film morphology, will have to be investigated in more detail.…”
Section: Zixue Sumentioning
confidence: 99%
“…There are also many other explanations on the self-ordering mechanism of anodic metal oxide raised by different groups. 47,[49][50][51] Since the density of metal cations in oxide is much lower than that in metal, when the metal substrate is anodized to form oxide, volume expansion happens. The mechanical stress from such a volume expansion might cause repulsive force between neighbouring pores and contribute to the self-organization of hexagonal pore arrays, as supposed by Jessensky et al 47 It was further suggested by the same group later that only a medium volume expansion of 1.4 times from aluminium to alumina, independent of the specific anodization conditions, could lead to a good pore ordering.…”
Section: Formation Of Ato Nanotube Arraysmentioning
confidence: 99%
“…52-56 му расположению пор. В последние годы появился ряд работ, в которых обсуждаются механизмы саморегуля-ции на стадии стационарного роста пор, а также воз-можность формирования малодефектной регулярной пористой структуры (названной самоупорядоченной или самоорганизованной) в электролитах на основе сер-ной и щавелевой кислот в процессе длительного аноди-рования при избранных потенциалах [6][7][8][9]. Очевидно, что тщательный подбор условий анодирования умень-шает число дефектов в регулярном расположении пор, в особенности со стороны границы металл / пленка.…”
Section: обсуждение результатовunclassified
“…[71][72][73][74] On the other hand, the driving force of self-ordering for the hexagonal patterned anodic alumina has been studied by several groups to control the film structure more precisely, fulfilling the various requirements of the vast application of anodic alumina. 27,[75][76][77][78]…”
Section: Porous-type Aao Filmsmentioning
confidence: 99%
“…Only after adjustment for a sufficient long time for the initial pores, satisfactory ordering could be achieved. The principle of the pore ordering has been investigated extensively by a number of groups, 25,27,40,[76][77][78][85][86][87] while the most commonly accepted model is based on mechanical stress expansion during oxide formation at the oxide/metal interface could be a possible origin of a repulsive force between neighboring pores. Jessensky et al 27 proposed that this repulsive force could account for the self-organised formation of hexagonal pore arrays.…”
Section: Self-ordering Of Pores In Porous Aao Filmsmentioning
confidence: 99%