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:
Dec. 21, 2010
Filed:
May. 01, 2009
Anthony J. Derose, Rochester, NY (US);
Stefan M. Maczynski, Canandaigua, NY (US);
Carolyn D. Fleming, Lima, NY (US);
Subhasish Mukerjee, Pittsford, NY (US);
Rick D. Kerr, Fenton, MI (US);
Karl J. Haltiner, Jr., Fairport, NY (US);
Joseph Keller, Grand Blanc, MI (US);
Anthony J. DeRose, Rochester, NY (US);
Stefan M. Maczynski, Canandaigua, NY (US);
Carolyn D. Fleming, Lima, NY (US);
Subhasish Mukerjee, Pittsford, NY (US);
Rick D. Kerr, Fenton, MI (US);
Karl J. Haltiner, Jr., Fairport, NY (US);
Joseph Keller, Grand Blanc, MI (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
During manufacture of an SOFC assembly, an inhibitor is included to prevent migration of silver braze during subsequent use of the SOFC assembly. The inhibitor may take any of several forms, either individually or in combination. Inhibitors comprehended by the present invention include, but are not limited to: a) a mechanical barrier that can be printed or dispensed onto one or more SOFC stack elements around the braze areas to prevent mechanically-driven migration; b) an electrically insulating feature in the electrolyte or interlayer over the electrolyte layer in the seal margins to prevent electrical potential-driven migration; and 3) chemical modification of the braze itself as by addition of an alloying metal such as palladium.