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:
Nov. 15, 1983
Filed:
Apr. 30, 1982
Igor V Kadija, Cleveland, TN (US);
Olin Corporation, New Haven, CT (US);
Abstract
An electrochemical oxidation treatment for monolithic cathode structures having a Beta phase Raney nickel alloy surface thereon is disclosed. When a freshly leached structure is made the anode in an electrochemical cell, which is operated at a current density of between about 40 and about 60 mA/cm.sup.2 until the polarization voltage is reduced from the open circuit value of about -1250 mV by about 500 to about 700 mV, the treated structure is free of subsequent problems with pyrophoricity. Cathodic structures treated this way show substantially no difference in hydrogen overvoltage characteristics and long-term stabilities when compared to chemically depyrophoricized materials of the same composition and structure.