Xtalic Corporation

Robert Daniel Hilty

Evgeniya Freydina

Joshua Garth Abbott

James A Curran

James A Wright

Alan C Lund

Shiyun Ruan

Lisa J Chan

Michelle Lee Houle

Articles including a layer comprising nickel and chromium as well as related methods are described herein.

Articles including a nickel and chromium layer and methods of forming the same

Electrodeposition bath compositions, additives, and maintenance methods are described. In one embodiment, an electrodeposition bath includes at least a first metal ionic species that reacts with a second metal ionic species to maintain either the first and/or second metal ionic species in a desired oxidation state for electrodeposition.

Aluminum alloys and deposition methods

Techniques for forming an enclosure comprised of an aluminum alloy are disclosed. In some embodiments, aluminum ions and metal element ions can be dissolved in a non-aqueous ionic liquid in an electrolytic plating bath. A reverse pulsed electric current can facilitate in co-depositing the aluminum ions and the metal element ions onto a metal substrate. The resulting aluminum alloy layer can include nanocrystalline structures, which can impart the alloy layer with increased hardness and increased resistance to scratching, corrosion, and abrasion. In some embodiments, the metal element ion is chromium and the aluminum alloy layer includes a chromium oxide passivation layer formed via a passivation process. Subsequent to the passivation process, the formation of the chromium oxide layer does not impart a change in color to the aluminum alloy layer. In some embodiments, hafnium ions are co-deposited with aluminum ions to form an aluminum hafnium alloy.

Nanostructured aluminum alloys for improved hardness

Techniques for forming an enclosure comprised of aluminum zirconium alloy layer are disclosed. In some embodiments, aluminum ions and zirconium ions can be dissolved in a non-aqueous ionic liquid in an electrolytic plating bath. A reverse pulsed electric current can facilitate in co-depositing the aluminum ions and the zirconium ions onto a metal substrate. The resulting aluminum zirconium alloy layer can include nanocrystalline grain structures, which can impart the alloy layer with increased hardness and increased resistance to scratching, denting, and abrasion. In some embodiments, the aluminum zirconium alloy layer can be anodized to form an aluminum oxide layer. Subsequent to the anodization operation, the oxidized layer is able to retain its substantially neutral color.

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Walpole, MA, United States of America

Robert Daniel Hilty