Title: Ternary boride product and process

Abstract: A hard, tough, strong ceramic body is formed by hot pressing a mixture of a powdered metal and a powdered metal diboride. The metal employed is zirconium, titanium or hafnium and the diboride is the diboride of a different member of the same group of zirconium, titanium or hafnium to form a ternary composition. During hot pressing at temperatures above about 2,000.degree.F., a substantial proportion of acicular ternary monoboride is formed.

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Inventors: Clougherty, Edward V. (West Roxbury, MA, US)

Application Number: 401291
Filing Date: 1973-09-27
Publication_date: 1976-02-10
Assignee: Manlabs, Incorporated (Cambridge, MA)
Primary Class(es): 75/233 75/243, 75/244, 264/125, 419/12
Other Classes:
US Patent Ref:

2776468	Jan, 1957	Steinitz	75/202.
2799912	Jul, 1957	Greger	75/202.
3147543	Sep, 1964	Doerner et al.	75/202.
3802850	Apr, 1975	Clougherty	75/202.

Other Refs:
Primary Examiner: Padgett, Benjamin R.
Assistant Examiner: Schafer, R. E.
Attorney: Steinhilper; Frank A., Rosen; Alfred H.