The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 2008
Filed:
Jan. 14, 2004
Frank Tietz, Jülich, DE;
Mohsine Zahid, Jülich, DE;
Frank Tietz, Jülich, DE;
Mohsine Zahid, Jülich, DE;
Forschungszentrum Julich GmbH, Julich, DE;
Abstract
A method is disclosed for producing a protective coating on a chromium oxide forming substrate, in which on a surface of the chromium oxide forming substrate, a mixture of CoO, MnO, and CuO in suspension is applied, or a powdered CoO, MnO, and CuO is applied to said surface; at a temperature of 500 to 1000° C., to form a protective coating on the chromium oxide forming substrate, said protective coating consisting essentially of a uniform, gas-tight, compact, adherent chromium free spinel layer on which is coated a metal oxide layer of CoO, MnO, and CuO. Also disclosed are interconnectors for high temperature fuel cells as the chromium oxide forming substrates on which the protective coating is applied.