Method for making submicrometer carbides, submicrometer solid solution carbides, and the material resulting therefrom

U.S. Patent Number: 5380688

Abstract: A method for making submicrometer metallic carbides and submicrometer solid solution metallic carbides from sources of at least one metallic oxide and carbon involves the rapid heating of a reactive particulate mixture of at least one metallic oxide and carbon in order to achieve a resulting particulate size of less than 1 micrometer. Submicrometer sized metallic carbides and solid solution metallic carbides have found great use in commercial ceramic applications. It has been found that the smaller sized particles produce a product having superior toughness and hardness. In addition, the submicrometer sized solid solution metallic carbide resulting from this method is also disclosed.

Inventors: Dunmead; Stephen D. (Midland, MI), Moore; William G. (Midland, MI), Weimer; Alan W. (Midland, MI), Eisman; Glenn A. (Midland, MI), Henley; John P. (Midland, MI)

Assignee: The Dow Chemical Company (Midland, MI)

Application Number: 08/104,511

Issued: 1995-01-10

Expired: 2007-01-10

Classes: 501/87 ; 423/440; 501/93; 51/309

Field of search: 51/293,309 501/87,93 423/440

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