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Title: Process for preparing fine grain titanium carbide powder

Abstract

This patent describes a method for preparing titanium carbide powder of a purity greater than 99.9% in a submicron particle size range. The method comprises forming a mixture consisting essentially of a liquid organotitanate or an organititanate in solution and a solution of carbon precursor polymer. The organotitanate and the carbon precursor polymer are in essentially stoichiometric concentrations with respect to titanium and carbon. The organotitanate provides a crosslinking reaction with the carbon precursor polymer for forming a gel, heating the gel to successively dry the gel, drive volatile components from the gel and pyrolyze the polymer to form free carbon, and thereafter heating the remaining components of the gel to a temperature sufficient to convert the titanium and carbon to titanium carbide powder.

Inventors:
Publication Date:
OSTI Identifier:
7195159
Patent Number(s):
US 4622215
Assignee:
Dept. of Energy, Washington, DC
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 12 Mar 1985
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; TITANIUM CARBIDES; CHEMICAL PREPARATION; CARBON; CROSS-LINKING; GELS; HEATING; IMPURITIES; MIXTURES; PARTICLE SIZE; POLYMERS; POWDERS; PYROLYSIS; QUANTITY RATIO; STOICHIOMETRY; TEMPERATURE EFFECTS; VOLATILE MATTER; CARBIDES; CARBON COMPOUNDS; CHEMICAL REACTIONS; COLLOIDS; DECOMPOSITION; DISPERSIONS; ELEMENTS; MATTER; NONMETALS; POLYMERIZATION; SIZE; SYNTHESIS; THERMOCHEMICAL PROCESSES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; 360201* - Ceramics, Cermets, & Refractories- Preparation & Fabrication

Citation Formats

Janey, M A. Process for preparing fine grain titanium carbide powder. United States: N. p., 1986. Web.
Janey, M A. Process for preparing fine grain titanium carbide powder. United States.
Janey, M A. Tue . "Process for preparing fine grain titanium carbide powder". United States.
@article{osti_7195159,
title = {Process for preparing fine grain titanium carbide powder},
author = {Janey, M A},
abstractNote = {This patent describes a method for preparing titanium carbide powder of a purity greater than 99.9% in a submicron particle size range. The method comprises forming a mixture consisting essentially of a liquid organotitanate or an organititanate in solution and a solution of carbon precursor polymer. The organotitanate and the carbon precursor polymer are in essentially stoichiometric concentrations with respect to titanium and carbon. The organotitanate provides a crosslinking reaction with the carbon precursor polymer for forming a gel, heating the gel to successively dry the gel, drive volatile components from the gel and pyrolyze the polymer to form free carbon, and thereafter heating the remaining components of the gel to a temperature sufficient to convert the titanium and carbon to titanium carbide powder.},
doi = {},
url = {https://www.osti.gov/biblio/7195159}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {11}
}