Recently, the U.S. Patent and Trademark Office published a patent application by Apple that covers future Apple devices (AppleWatch, iPhone, iPad, Mac, speaker devices, etc.) Made of zirconia ceramics or alumina toughened zirconia ceramics), with a matte texture material.
As shown, Figure 1A shows a front view of an example watch (AppleWatch #100) with case #105 including a textured zirconia-based component; Figure 4 shows a rear view of an iPhone, rear surface of the device The textured zirconia-based components (#404 and 434) were included on the top; Figure 7 is a schematic flow diagram of an example of a textured zirconia-based housing component.
According to the patent, texture-based zirconia components are commonly used as housings for electronic devices, such as electronic watches. In some cases, the textured outer surface of the zirconia-based part gives the outer surface of the housing a matte appearance that is not only resistant to scratches and abrasions, but also provides a specific “feel”, is easy to clean, or both Of. Or further, such a textured outer surface can be configured such that the zirconia-based component substantially retains its strength and impact resistance.
For more information, see Apple’s patent application number 20220256720.
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Here is the video shows we recently did matte finish on ceramic bracelet and bezels.