Fabrication of metal oxide–diamond composite films by electrophoretic deposition and anodic dissolution

Abstract

Electrochemical codeposition of diamond particles and refractory metal hydroxide films was conducted by combining electrophoretic deposition and anodic dissolution. Anodic corrosion of metal proceeded under the influence of iodide ions, and then metal ions were released to the solvent. Positively charged diamond particles were suspended in the solvent and electrophoretically deposited on the cathode surface at the same time as electrochemical deposition of the metal ions. As a result, diamond dispersed metal hydroxide film was produced. The diamond content of the film was easily controlled by varying the quantity of suspension in the solvent. This codeposition mechanism is investigated in detail.