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. 07, 2004
Filed:
Dec. 31, 2002
Xiao Guang Zheng, Mount Waverley, AU;
Ceramic Fuel Cells Limited, Victoria, AU;
Abstract
An electrically conductive metal element comprises an electrically conductive metal substrate having a layer of Ni—Sn alloy overlying an electrically conductive surface of the substrate and at least one layer of Ag or of Ag containing Sn overlying the Ni—Sn alloy layer. The Ni—Sn alloy(s) has a Sn-content not greater than for Ni Sn for high temperature uses. In a convenient method of forming the element the Sn is applied to one or more layers of Ni in a Ag+Sn mixture and diffused into the Ni layer(s) to form the Ni—Sn alloy layer and at least one layer of Ag or of Ag containing Sn. The element may have a surface layer of SnO which can be formed by oxidizing residual Sn which migrates to the outer surface of the at least one layer of Ag containing Sn.