DONALD A HAY
Engineering in Medfield, MA
License number
Massachusetts 17450
Issued Date
Oct 30, 1961
Expiration Date
Jun 30, 1990
Type
Metallurgical Engineer
Address
Address
Medfield, MA 02052
Professional information
Process For Dispersoid Strengthening Of Copper By Fusion Metallurgy
US Patent:
3993478, Nov 23, 1976
Filed:
Feb 4, 1974
Appl. No.:
5/439624
Inventors:
Donald A. Hay - Medfield MA
Peter T. Gregg - Shirley MA
Walter L. Finlay - New York NY
Peter T. Gregg - Shirley MA
Walter L. Finlay - New York NY
Assignee:
Copper Range Company - New York NY
International Classification:
C22C 900, C22C 906
US Classification:
75159
Abstract:
In the production of stable dispersoid titanium, carbide strengthened copper by fusion metallurgy, refractory dispersoid particles are formed in situ within the copper melt by reaction between specifically selected components including nickel within the melt. The components are characterized by novel wetting relationships, by which the refractory dispersoid is maintained as such within the melt. The resulting composite material has been found to have an unusual association of high electrical conductivity and high temperature strength, by virtue of which novel electromechanical switches and the like are possible.