C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 5/02 (2006.01) C22C 5/04 (2006.01) C22C 5/06 (2006.01) C22C 5/08 (2006.01) C22F 1/14 (2006.01)
Patent
CA 2383976
A hard noble-metal alloy member which is constituted of a gold alloy having a gold content of 37.50 to 98.45 wt.% and containing a hardening additive consisting of either gadolinium alone or a mixture thereof with at least one member selected from the group consisting of rare earth elements excluding gadolinium, alkaline earth elements, silicon, aluminum, and boron, the total amount of all the hardening elements being 50 to 15,000 ppm, excluding 15,000 ppm.
L'invention porte sur un alliage dur de métal noble comprenant de 37,5 % à 98,45 % d'or et un additif durcisseur de gadolinium seul ou de son mélange à un métal des terres rares excluant le gadolinium, les métaux alcalino-terreux le silicium, l'aluminium et le bore, la quantité totale d'additifs durcisseurs étant comprise entre 50 et 15000 ppm à l'exclusion de 15000 ppm.
Ogasa Kazuo
Smart & Biggar
LandOfFree
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