Apple Explores Use of Nitride Coating for Scratch-Proof Devices

Apple is exploring the use of nitride coating to make stainless steel devices more durable and scratch resistant.

AppleInsider has discovered an Apple patent published by the U.S. Patent & Trademark office entitled "Nitriding Stainless Steel for Consumer Electronic Products." It describes a cost-effective system that would place a layer of nitride atop a stainless steel exterior.

"In addition to providing a durable, hard surface that is both scratch and impact resistant, the nitride layer allows for the natural surface color and texture of the underlying stainless steel to remain visible to the user," the application reads. "It is this natural surface color and texture of the stainless steel that adds to the aesthetically pleasing appearance of the consumer electronic product, thereby enhancing the user's overall experience."


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