Method Of Making Closed End Ceramic Fuel Cell Tubes

Patent · Tue Apr 30 00:00:00 EDT 2002

OSTI ID:879513

Borglum, Brian P ^[1]

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1. Edgewood, PA

A method of manufacturing closed end ceramic fuel cell tubes with improved properties and higher manufacturing yield is disclosed. The method involves bonding an unfired cap to a hollow unfired tube to form a compound joint. The assembly is then fired to net shape without subsequent machining. The resultant closed end tube is superior in that it provides a leak-tight seal and its porosity is substantially identical to that of the tube wall. The higher manufacturing yield associated with the present method decreases overall fuel cell cost significantly.

• Research Organization: Westinghouse Electric Corp., Pittsburgh, PA (United States)
• DOE Contract Number: FC21-91MC28055
• Assignee: Siemens Westinghouse Power Corporation (Orlando, FL)
• Patent Number(s): US 6,379,485
• Application Number: 09/058069
• OSTI ID: 879513
• Country of Publication: United States
• Language: English