Production of ceramic materials

Details Production of ceramic materials Production of ceramic materials

1987-03-18

1991-02-26

Group, Karl

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 88, 501 96, 501 97, 501 98, 423345, 423409, C04B 3556, C04B 3558

Patent

active

049961748

ABSTRACT:
Process for production of a ceramic material, e.g. a carbide, nitride, boride or silicide, by reacting at least one compound of a metallic or non-metallic element having two or more goups reactive with hydroxyl groups with at least one organic compound having two or more hydroxyl groups to form an oxygen-containing polymeric product, heating the polymeric product to produce a coked product containing carbon and an oxide of the metallic or non-metallic element, and heating the coked product to produce a ceramic maerial, in which the proportion by weight of carbon to the oxide of the metallic or non-metallic element in the coked product is in the range from 50% to 150% of the proportion which is theoretically required to produce the ceramic material.

REFERENCES:
patent: 2697029 (1954-12-01), Baker et al.
patent: 3855395 (1974-12-01), Cutler
patent: 4097294 (1978-06-01), Rice
patent: 4584365 (1986-04-01), Jada
patent: 4671990 (1987-06-01), Jada
Yajima et al. Chemical Letters 1975 p. 931.
Yajima et al. Nature v. 273 pp. 525 and 527.
Thermochimica Acta, 81, (1984) pp. 77 to 86.
Chemical Abstracts vol. 96, No. 12, Jun. 1982, p. 137, 201996k (Japanese Pat. publ. 81155013).
Journal of American Ceramics Society, vol. 67, No. 10, 1984 (pp. 691-695).
Chemical Abstracts, vol. 104, No. 12, Mar. 1986, p. 338, 93927m.

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