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:
Apr. 29, 2025
Filed:
Jul. 13, 2020
Haldor Topsøe A/s, Kgs. Lyngby, DK;
Tobias Holt Nørby, Glostrup, DK;
Rainer Küngas, Harjumaa, EE;
Bengt Peter Gustav Blennow, Humlebæk, DK;
Jeppe Rass-Hansen, Copenhagen, DK;
Thomas Heiredal-Clausen, Birkerød, DK;
HALDOR TOPSØE A/S, Kgs. Lyngby, DK;
Abstract
In a method for chromium upgrading of interconnects made of ferritic steel to be used in solid oxide cell stacks, comprising the steps of shaping the interconnect, depositing a coating comprising Cr on at least one surface of the shaped interconnect and performing one or more thermal treatments at a temperature below 1000° C., the resulting Cr concentration near the surface of the interconnect is higher than the Cr concentration in the ferritic steel before shaping. Specifically, the average Cr concentration of the shaped interconnect is increased to 26 wt % Cr or higher.