公开(公告)号：US20180230616A1

公开(公告)日：2018-08-16

申请号：US15884006

申请日：2018-01-30

Applicant: Applied Materials, Inc.

Inventor： David W. GROECHEL ,  Gang PENG ,  Robert MIKKOLA

IPC: C25D3/44 ,  C25D5/00

CPC classification number: C25D3/44 ,  C25D3/665 ,  C25D5/003 ,  C25D5/18 ,  C25D17/02 ,  C25D21/10

Abstract: The present disclosure generally relates to methods of electro-depositing a crystalline layer of pure aluminum onto the surface of an aluminum alloy article. The methods may include positioning the article and an electrode in an electro-deposition solution. The electro-deposition solution includes one or more of an aluminum halide, an organic chloride salt, an aluminum reducing agent, a solvent such as a nitrile compound, and an alkali metal halide. The solution is blanketed with an inert gas, agitated, and a crystalline layer of aluminum is deposited on the article by applying a bias voltage to the article and the electrode.