Metal carbide production from carboxylate precursors

Details Metal carbide production from carboxylate precursors Metal carbide production from carboxylate precursors

1992-04-10

1992-12-08

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 88, 423417, 423418, 423440, 423492, 528 26, C04B 3556, C01G 104

Patent

active

051698080

ABSTRACT:
Metal carbides can be formed by the pyrolysis of a composition comprising metal and carboxylic acid residues bonded therein, the composition being substantially free of extraneous carbon and also having metal moieties that are not in the substituent position. Dicarboxylic acids, for example, can be reacted with either metal alkoxides or metal halides to form an oligomer or polymer which can be calcined to the metal carbide. Alternatively, a metal alkoxide can be reacted with a monocarboxylic acid to form a metal alkoxide carboxylate which can be heated to the metal carbide. Finally, a metal carboxylate can be heated to form the desired metal carbide.

REFERENCES:
patent: 3865745 (1975-02-01), Block et al.
patent: 4622215 (1986-11-01), Janey
patent: 4826666 (1989-05-01), Laine
patent: 4857490 (1989-08-01), Johnson
patent: 4948762 (1990-08-01), Krumbe et al.

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