公开(公告)号：US10590558B2

公开(公告)日：2020-03-17

申请号：US15482678

申请日：2017-04-07

申请人： Xtalic Corporation

发明人： Evgeniya Freydina ,  Joshua Garth Abbott ,  Alan C. Lund ,  Robert Daniel Hilty ,  Shiyun Ruan ,  Jason Reese ,  Lisa J. Chan ,  James A. Wright ,  James A. Curran

IPC分类号： C25D5/18 ,  C25D3/44 ,  C22C21/00 ,  C25D11/04 ,  C25D7/00 ,  B32B15/01 ,  H05K5/04 ,  C25D5/48 ,  C25D3/66 ,  H04M1/02 ,  C25D1/00 ,  C25D11/24

摘要： 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.

公开(公告)号：US10590514B2

公开(公告)日：2020-03-17

申请号：US15482675

申请日：2017-04-07

申请人： Xtalic Corporation

发明人： Evgeniya Freydina ,  Joshua Garth Abbott ,  Alan C. Lund ,  Robert Daniel Hilty ,  Shiyun Ruan ,  Jason Reese ,  Lisa J. Chan ,  James A. Wright ,  James A. Curran

IPC分类号： C22C21/00 ,  C25D11/04 ,  C25D7/00 ,  C25D5/48 ,  H05K5/04 ,  B32B15/01 ,  C25D5/18 ,  C25D3/66

摘要： 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.