Formation of Porous Anodic Oxide Film on Titanium in Phosphoric Acid Electrolyte
Source abstract
Abstract
A sequential breakdown anodizing conditions on cp-Ti in phosphoric acid has been investigated in the present study. Anodic oxide films were formed at 100, 150, and 200 V, examined by scanning electron microscopy, Raman spectroscopy, glow discharge optical emission spectrometry, and electrochemical impedance spectroscopy. A porous oxide texture was formed at each voltage. The thickness of anodic porous oxide increased with the increase of anodic voltage. Nano-particulates were formed around and within the pores, and the size of pores increased with increased voltage due to the expansion of particulates. The amorphous-to-crystalline transition was initiated during the film growth. The degree of crystallinity in the anodic oxide film fabricated at 200 V is more abundant than 150 and 100 V. Increased content of the phosphorus species was incorporated into the porous film with the increase of anodic voltage, stabilizing for the nanocrystals developed within the oxide.
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Research context
OpenAlex topics: Anodic Oxide Films and Nanostructures · Corrosion Behavior and Inhibition · Concrete Corrosion and Durability
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References (27)
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