Abstract

Disclosed is a method of applying to stainless steel a protective coating effective in increasing oxidation resistance, the method includes cleaning and pre-oxidizing in hot dry air, cooling and creating the cooled stainless steel with nanocrystalline ceria particles doped with a lanthanide metal. Cleaning may include ultrasound and optionally polishing. Cooling is conducted in air and coating is preferably effected by dipping the stainless steel into a composition containing the nanocrystalline ceria particles. The invention includes a coating effective for retarding oxidation of stainless steel, the coating comprising nanocrystalline ceria particles doped with a lanthanide, a preferred lanthanide being lanthanum and preferred nanocrystalline ceria particles are approximately 3 nm in size and contain from about 2 to 40 atom % of dopant.

Document Type

Patent

Patent Number

US 8,435,602 B1

Application Serial Number

12/329,083

Issue Date

5-7-2013

Current Assignee

UCFRF

Assignee at Issuance

UCFRF

College

Advanced Materials Processing & Analysis Center (AMPAC)

Department

Advanced Materials Processing & Analysis Center (AMPAC)

Allowance Date

1-18-2013

Filing Date

12-5-2008

Assignee at Filing

UCFRF

Filing Type

Nonprovisional Application Record

Donated

no

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