Results 211 to 220 of about 26,672 (265)
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Philosophical Magazine B, 1987
Abstract Key aspects of anodic film growth on aluminium at ambient temperatures in aqueous electrolytes, encompassing barrier- and porous-type films, are described. By direct observation of film sections, incorporating inert marker layers and tracers, in the transmission electron microscope and appropriate analysis, the locations of solid-film growth ...
G. E. Thompson +5 more
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Abstract Key aspects of anodic film growth on aluminium at ambient temperatures in aqueous electrolytes, encompassing barrier- and porous-type films, are described. By direct observation of film sections, incorporating inert marker layers and tracers, in the transmission electron microscope and appropriate analysis, the locations of solid-film growth ...
G. E. Thompson +5 more
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Canadian Journal of Physics, 1971
Anodization current efficiency measurements were used to determine the oxygen content of sputtered tantalum films. Films consisting mainly of b.c.c. Ta had less than 5 at.% oxygen while 'normal' β-Ta contained 10–15 at.% oxygen. Films with a more negative temperature coefficient of resistance had a higher oxygen content.The field strength required to ...
P. S. Wilcox, W. D. Westwood
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Anodization current efficiency measurements were used to determine the oxygen content of sputtered tantalum films. Films consisting mainly of b.c.c. Ta had less than 5 at.% oxygen while 'normal' β-Ta contained 10–15 at.% oxygen. Films with a more negative temperature coefficient of resistance had a higher oxygen content.The field strength required to ...
P. S. Wilcox, W. D. Westwood
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ECS Meeting Abstracts, 2023
Previously [1] we studied the anodic oxidation of symmetrical bisamides of type RCONH(CH2)nNHCOR (n = 2-4) under constant current electrolysis (CCE), in methanol. Those with 3 and 4 methylene groups as spacers undergo mostly mono- and dimethoxylation at the alpha-position to 'N' atom.
James Y. Becker, Tatiana Golub
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Previously [1] we studied the anodic oxidation of symmetrical bisamides of type RCONH(CH2)nNHCOR (n = 2-4) under constant current electrolysis (CCE), in methanol. Those with 3 and 4 methylene groups as spacers undergo mostly mono- and dimethoxylation at the alpha-position to 'N' atom.
James Y. Becker, Tatiana Golub
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The anodic oxidation of uranium
Acta Metallurgica, 1954Abstract Over a range of 2–100 volts the anodic oxidation of uranium in ammoniacal ethylene glycol produces oxide films which are predominantly uranium dioxide in composition. The oxide formed in this manner shows considerable stability to atmospheric corrosion.
O Flint, J.J Polling, A Charlesby
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Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1983
Abstract The anodic oxidation of cryptands has been studied in the presence and in the absence of monovalent cations interacting with these ligands. The anodic reactivity of the uncomplexed cryptands has been shown to be critically dependent on structural parameters.
G. Ritzler, F. Peter, M. Gross
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Abstract The anodic oxidation of cryptands has been studied in the presence and in the absence of monovalent cations interacting with these ligands. The anodic reactivity of the uncomplexed cryptands has been shown to be critically dependent on structural parameters.
G. Ritzler, F. Peter, M. Gross
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ECS Meeting Abstracts, 2020
Previously [1] we studied the anodic oxidation of bisamides of type RCONH(CH2)nNHCOR (n = 2-4) under controlled current electrolysis (CCE), in methanol. Those with 3 and 4 methylene groups undergo mostly mono- and dimethoxylation at the alpha-position to 'N' atom.
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Previously [1] we studied the anodic oxidation of bisamides of type RCONH(CH2)nNHCOR (n = 2-4) under controlled current electrolysis (CCE), in methanol. Those with 3 and 4 methylene groups undergo mostly mono- and dimethoxylation at the alpha-position to 'N' atom.
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The anodic oxidation of neodymium
Electrochimica Acta, 1979The anodic oxidation of neodymium was investigated by the galvanostatic technique in Na2-HPO4 - ethylene glycol solution. According to the combination of measurments of ac capacity and of specular reflectivity, we obtained a refractive index for the oxide films as a function of wavelength and the value of apparent dielectric constant of the films for ...
Haruyoshi Nishikawa, Shin-ichi Minami
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Russian Chemical Reviews, 1964
CONTENTS I. Introduction 286 II. Growth of anodic films 286 III. Non-porous films: empirical relationship between ionic current, field, and temperature 287 IV. Theory of the growth of anodic films 288 V.
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CONTENTS I. Introduction 286 II. Growth of anodic films 286 III. Non-porous films: empirical relationship between ionic current, field, and temperature 287 IV. Theory of the growth of anodic films 288 V.
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The mechanism of anodic oxidation
Journal of Physics and Chemistry of Solids, 1962Abstract The ion transport mechanism in the growth of oxide films during anodic oxidation has been studied. Tracer methods have been used to determine the order of the atoms in the film. The position of the labelled atoms was determined by observing the form of excitation curves near sharp resonances of the reactions O18(p, α)N15 and Al27(p, γ)Si28 ...
G. Amsel, David Samuel
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Corrosion Science, 2006
The anodic oxidation of InAlAs is investigated by transmission electron microscopy, Rutherford backscattering spectroscopy and medium energy ion scattering in order to elucidate the mechanism of oxide growth. For this purpose, anodizing was carried out at 5 mA cm−2 in 0.1 M sodium tungstate and 0.1 M ammonium pentaborate electrolytes at 293 K, which ...
A. Suleiman +10 more
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The anodic oxidation of InAlAs is investigated by transmission electron microscopy, Rutherford backscattering spectroscopy and medium energy ion scattering in order to elucidate the mechanism of oxide growth. For this purpose, anodizing was carried out at 5 mA cm−2 in 0.1 M sodium tungstate and 0.1 M ammonium pentaborate electrolytes at 293 K, which ...
A. Suleiman +10 more
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