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CERIUM CONVERSION DIP COATING FOR CORROSION PROTECTION OF ALUMINUM ALLOYS

IP Title

CERIUM-BASED SPONTANEOUS COATING PROCESS FOR CORROSION PROTECTION OF ALUMINUM ALLOYS

Detailed Technology Description

None

Supplementary Information

Patent Number: US7048807B2
Application Number: US2002214955A
Inventor: Stoffer, James O. | O'Keefe, Thomas J. | O'Keefe, Matthew | Morris, Eric L. | Hayes, Scott | Yu, Paul | Williams, Alex | Vasquez, Berny F. Rivera | Lin, Xuan
Priority Date: 8 Aug 2002
Priority Number: US7048807B2
Application Date: 8 Aug 2002
Publication Date: 23 May 2006
IPC Current: C23C002207 | C23C002256 | C23C002283
US Class: 148254 | 148261 | 148273
Assignee Applicant: The Curators of the University of Missourilumbia
Title: Cerium-based spontaneous coating process for corrosion protection of aluminum alloys
Usefulness: Cerium-based spontaneous coating process for corrosion protection of aluminum alloys
Summary: For enhancing corrosion resistance of an aluminum-containing component of an aircraft.
Novelty: Enhancement of corrosion resistance of aluminum-based component of aircraft, involves exposing cleaned aluminum-based component to corrosion-inhibiting cerium solution containing cerium ions in the presence of oxidizing agent

Industry

Chemical/Material

Sub Category

Chemical/Material Application

Application Date

Aug 8, 2002

Application No.

7,048,807

Others

*Abstract

Abstract of US Patent 7,048,807 - Cerium-based spontaneous coating process for corrosion protection of aluminum alloys: A cerium-based coating for corrosion resistance is applied by exposing a cleaned aluminum-based component to a corrosion-inhibiting cerium solution containing cerium ions in the presence of an oxidizing agent. The coating deposits spontaneously without an external source of electrons.Non-confidential Abstract of Invention: A conversion coating for use in protecting aluminum from corrosion has been developed. The chemical film is coated onto the aluminum metal by submerging in a solution containing a cerium salt and other supporting chemical components. The system is environmentally acceptable and could serve as a replacement for the chromate coatings now used.

*IP Issue Date

May 23, 2006

*Principal Investigator

Name: James Stoffer, Curators' Professor

Department:

Name: Thomas O'Keefe, Curatorss' Professor Emeritus

Department:

Name: XUAN LIN

Department:

Name: Eric Morris

Department:

Name: Matthew O'Keefe, Professor, Chem Engr; Executive Director (CME)

Department:

Name: Scott Hayes

Department:

Name: Pu Yu

Department:

Name: Alexander Williams

Department:

Name: Berny Rivera

Department:

Country/Region

USA