Coated refractory compositions and method for preparing the same

Details Coated refractory compositions and method for preparing the same Coated refractory compositions and method for preparing the same

1990-05-08

1992-11-24

Thibodeau, Paul J.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

428698, 428699, 428701, B32B 1800

Patent

active

051659964

ABSTRACT:
A coated refractory composition for making high quality preforms comprising a refractory material selected from a metal refractory carbide, metal refractory nitride, metal refractory boride or diamond having a coating layer of hydrous alumina or a coating layer of anhydrous crystalline alumina, and to a method for enhancing dispersibility and improving oxidation resistance of such compositions.

REFERENCES:
patent: 4249913 (1981-02-01), Johnson et al.
patent: 4632876 (1986-12-01), Laird et al.
patent: 4801510 (1989-01-01), Mehrotra et al.
patent: 4806428 (1989-02-01), Cooper et al.

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