Glow discharge optical emission spectrometry (GDOES) depth profiling analysis of anodic alumina films—a depth resolution study

Shimizu, K.; Brown, G.M.; Habazaki, H.; Kobayashi, K.; Skeldon, P.; Thompson, G.E.; Wood, G. C.

doi:10.1002/(sici)1096-9918(199901)27:1<24::aid-sia457>3.0.co;2-n

Cited by 47 publications

(9 citation statements)

References 18 publications

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“…Prior to anodizing, an aluminum plate was electropolished in solution containing HClO 4 and ethanol (1:4, v/v) at a constant voltage of 20 V for 5 min below 278 K. Then, the specimen was anodized in 0.1 mol dm -3 ammonium pentaborate ((NH 4 ) 2 B 10 O 16 ) at a constant current density of 5 mA cm -2 up to 200 V at 293 K, using a two-electrode cell with a platinum counter electrode. The alumina surface thus prepared was smooth and flat, as reported previously [27].…”

Section: Specimen Preparationmentioning

confidence: 62%

Facile preparation of self-healing superhydrophobic CeO2 surface by electrochemical processes

Nakayama

Hiraga

Chen

et al. 2017

Applied Surface Science

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Section: Specimen Preparationmentioning

confidence: 62%

Facile preparation of self-healing superhydrophobic CeO2 surface by electrochemical processes

Nakayama

Hiraga

Chen

et al. 2017

Applied Surface Science

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“…The highest concentration of P (up to 3 at.%) was found in the middle (point B) of the anodic oxide film. Because the incorporated phosphorus had a tendency to migrate inwards, 11,12,32 there might be some P traps located in the middle layer of the oxide. In fact, Shimizu et al 2 has also reported the nonuniform distribution of phosphorus, revealing a complex variation with depth, within the anodic oxide based on glow discharge optical emission spectrometry (GDOES) depth profiling study.…”

Section: A Current and Voltage Transients During Anodizationmentioning

confidence: 99%

“…The properties of the oxides were found to depend on anodization electrolytes. It has been reported [8][9][10][11][12] that the anions in the electrolyte had the potential to be incorporated into the oxide during the film growth. As a result, there existed a possibility for the morphology, chemical composition, crystallinity, and electrochemical behavior of the aluminum anodic oxide to be significantly influenced.…”

Section: Introductionmentioning

confidence: 99%

Material characteristics and capacitive properties of aluminum anodic oxides formed in various electrolytes

et al. 2004

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The microstructure and composition of aluminum oxide films, formed by a two-step anodization process in various electrolytes at 100 V then subject to an intermediate heat treatment (500 °C, 2 min), were investigated. The anodization electrolytes used included ammonium adipate electrolyte, phosphoric acid electrolyte, ammonium dihydrogen phosphate electrolyte, and their mixtures. The cross-section morphologies, crystal structure, and chemical composition of aluminum anodic oxides were examined by transmission electron microscopy. X-ray photoelectron spectroscopy was carried out to study the surface chemical state of the anodic films. The corresponding capacitances and retention voltages of these oxide films were also explored. The results indicated that amorphous-to-crystalline transformation of the oxide, primarily in films formed in ammonium adipate electrolyte, was induced by the heat treatment. Electron diffraction analyses further revealed the oxide films consisted of two distinct zones, which included an inner amorphous layer and an outer layer containing crystalline γ′-Al2O3. This study found that the phosphorous species in either the primary or the re-anodization electrolytes had a potential to cause changes of Al and O distributions within the oxides. The oxide film primarily anodized in ammonium adipate and re-anodized in phosphoric acid had the highest capacitance due to its high degree of crystallinity and thinness compared to oxides formed in other electrolytes. The presence of phosphorus, from the primary anodization electrolytes, in the oxides could inhibit the formation of crystalline γ′-Al2O3 and, consequently, decrease the capacitances of the anodic films. At the same time, the retention voltage and hydration resistance of these oxide films were improved.

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“…These roughening effects bear also important implications in the dependence of the depth resolution on the coating thickness, during elemental analysis of multilayer stacks, as has been demonstrated experimentally in previous papers [28][29][30][31][32][33][34][35][36][37][38][39]. Moreover, there have been several attempts of modelling the effects of roughness during analysis of films and multilayers, based either in deconvolution techniques, or by theoretical calculation of the variation of the interface width, aiming to predict the broadening of the individual layers [40][41][42][43][44].…”

Section: Introductionmentioning

confidence: 99%

Modelling of Glow Discharge Optical Emission Spectroscopy depth profiles of metal (Cr,Ti) multilayer coatings

Galindo

Albella

2008

Spectrochimica Acta Part B: Atomic Spectroscopy

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Glow discharge optical emission spectrometry (GDOES) depth profiling analysis of anodic alumina films—a depth resolution study

Cited by 47 publications

References 18 publications

Facile preparation of self-healing superhydrophobic CeO2 surface by electrochemical processes

Facile preparation of self-healing superhydrophobic CeO2 surface by electrochemical processes

Material characteristics and capacitive properties of aluminum anodic oxides formed in various electrolytes

Modelling of Glow Discharge Optical Emission Spectroscopy depth profiles of metal (Cr,Ti) multilayer coatings

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