Process for molding complex beta"-alumina shapes for sodium/sulf

Details Process for molding complex beta"-alumina shapes for sodium/sulf Process for molding complex beta"-alumina shapes for sodium/sulf

1983-11-18

1986-02-04

Czaja, Donald

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

264 44, 264 59, C04B 3564

Patent

active

045685029

ABSTRACT:
This invention relates to a compression molding method of preparing dimensionally precise highly contoured green bodies from a mixture of beta"-alumina percursor particulate and sacrificial binder. The binder comprises a thermoplastic block copolymer, oil, wax, stiffening molding, the green body may be heated to drive off the sacrificial binder and thereafter subjected to sintering. Such sintered articles are suitable for use in a sodium-sulfur battery.

REFERENCES:
patent: 2644799 (1953-07-01), Robinson
patent: 3445250 (1969-05-01), Preece
patent: 3687735 (1979-08-01), Inoue
patent: 3803279 (1974-04-01), Bailey, Jr. et al.
patent: 3846540 (1974-11-01), Leech
patent: 4158688 (1979-06-01), Pett
patent: 4158689 (1979-06-01), Pett
patent: 4265794 (1981-05-01), Pett
patent: 4267086 (1981-05-01), Pett
"The Technology of Ceramics and Refractories" pp. 196-216 (Chap. IV) P. P. Budnikov, MIT Press 1964.
Morton, Rubber Technology, pp. 515-533, 1973.

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