Forschungszentrum Julich Gmbh

Mohsine Zahid

Frank Tietz

Willem J Quadakkers

Vladimir Shemet

A method is disclosed for producing a protective coating on a chromium oxide-forming substrate, which comprises the steps of:

Protective coating for substrates that are subjected to high temperatures and method for producing said coating

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&#xb0; 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.

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Jülich, Germany

Mohsine Zahid