Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1983-11-10
1984-09-04
Hoag, Willard E.
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
264234, 264313, 264320, 264345, B29C 300, B29C 1100
Patent
active
044696507
ABSTRACT:
A high-hardness and high-strength carbon material is produced by disposing a body of graphite carbon, e.g. precompacted graphite or a mass of powdery graphite carbon, of a predetermined shape and dimension in a collapsible receptacle shaped and dimensioned to tightly retain the body therein, the receptacle being collapsible at least one-dimensionally under external pressure while holding the body against expansion. High pressure is applied to the body while the body is heated to an elevated temperature and for a sufficient period such as to cause a central region of the body to be liquefied and the remainder thereof to be sintered. While under continuous pressure, the body is cooled to give in carbon material.
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Dubno Herbert
Hoag Willard E.
Inoue-Japax Research Incorporated
Ross Karl F.
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