Methods for producing white appearing metal oxide films by positioning reflective particles prior to or during anodizing processes

摘要

The embodiments described herein relate to anodic films and methods for forming anodic films. The methods described can be used to form anodic films that have a white appearance. Methods involve positioning reflective particles on or within a substrate prior to or during an anodizing process. The reflective particles are positioned within the metal oxide of the resultant anodic film but substantially outside the pores of the anodic film. The reflective particles scatter incident light giving the resultant anodic film a white appearance.

主权项

1. A method for forming a metal oxide film, the method comprising:
forming a mixture by mixing reflective particles with metal particles; forming a composite metal layer by compressing the mixture onto a surface of a part; and converting at least a portion of the composite metal layer to the metal oxide film such that the metal oxide film includes at least part of the reflective particles embedded therein, wherein the embedded reflective particles impart a white appearance to the metal oxide film.