Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1989-03-07
1990-05-29
Niebling, John F.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204243R, 204290R, 204291, 204294, 427113, 427122, 4271261, 4271262, 427255, 428113, 4283077, 501 95, C25C 702
Patent
active
049293281
ABSTRACT:
An improved cathode structure for Hall-Heroult cells for the electrolytic production of aluminum metal. This cathode structure is a preform fiber base material that is infiltrated with electrically conductive titanium diboride using chemical vapor infiltration techniques. The structure exhibits good fracture toughness, and is sufficiently resistant to attack by molten aluminum. Typically, the base can be made from a mat of high purity silicon carbide fibers. Other ceramic or carbon fibers that do not degrade at temperatures below about 1000 deg. C can be used.
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Besmann Theodore M.
Lowden Richard A.
Gorgos Kathryn
Griffin James D.
Martin Marietta Energy Systems Inc.
Niebling John F.
Winchell Bruce M.
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