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U.S. Department of Energy
Office of Scientific and Technical Information

Method Of Making Closed End Ceramic Fuel Cell Tubes

Patent ·
OSTI ID:879513

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 Corporation (Pittsburgh, PA)
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

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