[ad_1]
The patent application mentions a hard outer layer with an intermediate layer between a metal substrate and the outer coating. The latter could be made of a ceramic material or a hard carbon-based material with all the hardness of a diamond. The outer layer would have a thickness of between 0.5 micron and about 3 microns and would be harder than the intermediate layer. This "intermediate layer" would measure between 8 micrometers and 30 micrometers.
The name of the patent application is "Abrasion resistant surface finishes on metal housings on metal housings" and, according to the document, the coatings offer improved resistance to abrasion and to the formation of bumps. The patent application adds that "coatings that offer improved resistance to abrasion and bump formation are described."
Discover some pictures of the patent by clicking on the slideshow below.
Apple is applying for a patent for an abrasion-resistant coating for future models of iPhone
[ad_2]
Source link
