C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 5/02 (2006.01) A61K 6/04 (2006.01)
Patent
CA 2584198
The invention relates to a dental alloy with a high gold content that is devoid of palladium and copper. To achieve a high mechanical stability, the dental alloy consists of between 75 and 95 wt. % Au, between 5 and 20 wt. % Pt, between 0.5 and 3.5 wt. % Zn and/or Sn and/or In, between 0.1 and 0.8 wt. % of an element of a group I, in addition to a single particle refiner of a group II. The weight fraction of the element of group I is between 2 and 6 times that of the single particle refiner of group II, and one element of the group I is represented by Nb or Ta or Ti or V and the particle refiner of group II is represented by Ir or Rh.
L'invention concerne un alliage dentaire à teneur élevée en or et exempt de palladium et de cuivre. Pour une grande stabilité mécanique, la composition de l'alliage dentaire est de 75 à 95 % en poids Au, 5 à 20 % en poids Pt, 0,5 à 3,5 % en poids Zn et/ou Sn et/ou In, 0,1 à 0,8 % en poids d'un élément d'un groupe I et d'un seul affineur de grain d'un groupe II. La partie pondérale de l'élément du groupe I est 2 à 6 fois celle de l'affineur de grain du groupe II, un élément du groupe I étant Nb ou Ta ou Ti ou V et un affineur de grain du groupe II étant Ir ou Rh.
Bauer Jochen
Hathaway Doris
Klaus Angela
Schuster Martin
Steinke Rudi
Cameron Ip
Degudent Gmbh
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