scholarly journals Photoluminescence of Anodic Oxide Films on Aluminium

1976 ◽  
Vol 3 (2) ◽  
pp. 91-95 ◽  
Author(s):  
Sakae Tajima ◽  
Nobuyoshi Baba ◽  
Kenichi Shimizu ◽  
Issei Mizuki

A wide variety of anodic oxide films were investigated from the photoluminescent point of view. It was found that the phenomenon of photoluminescence appears only on the films anodically formed in organic acids instead of inorganic acids. In particular, thick oxalic acid films formed in low electrolyte concentration, with high current densities on high purity aluminium, gave intense photoluminescence. The luminescent centres were presumed to be the carboxylate ions which had been incorporated in the films during anodisation.

2007 ◽  
Vol 124-126 ◽  
pp. 1777-1780 ◽  
Author(s):  
Ji Eon Lee ◽  
Kye Sung Kim ◽  
Young Rae Cho ◽  
Kwang Ho Kim ◽  
Won Sub Chung

Anodic oxide films were formed on titanium using an electrolyte solution containing phosphoric acid for dental implants by an electrochemical method. The parameters of the oxidation process were current density and electrolyte concentration. The micro structural morphology, surface roughness, thickness of the oxide layer and the behavior of voltage-time curves were examined. The results show that the surface roughness, porosity size and the thickness of the oxide layer showed similar trends as the process parameters were changed. The surface morphology of the samples was observed for different current densities at a constant electrolyte concentration. The pore size, thickness and roughness of the anodic oxide films are directly proportional to the maximum voltage and the slope of the voltage to time transient (dV/dt) curves during the growth of the galvanostatic anode oxide film on plate type Ti.


1988 ◽  
Vol 28 (1) ◽  
pp. 43-56 ◽  
Author(s):  
J.S.L. Leach ◽  
B.R. Pearson

Author(s):  
M. Schneider ◽  
L. Šimůnková ◽  
A. Michaelis ◽  
M. Noeske ◽  
J. Aniol ◽  
...  

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