title: [Studies on the proper processing of silver-palladium casting alloys].
abstract: The internal structure and the hardness of three silver-palladium alloys (Sipal 306, Spall WT 52, Bego Gold-EWL G) were investigated in the as-cast condition, after homogenization and after salt-bath hardening. From the results obtained it is concluded that the optimal processing conditions for Sipal 306 and Spall WT 52 are: homogenization at 850 degrees C for more than 2 hours, and hardening at 430--450 degrees C for 15 minutes. The hardness values thus obtained meet the requirements of the type IV indication of the FDI specification no. 7; however, the inhomogenous structure causes a lower resistance to tarnish.
mesh_terms: D003722:Dental Alloys / Q000592:standards; D003735:Dental Casting Technique; D003793:Dental Restoration, Permanent; D006245:Hardness Tests; D010165:Palladium; D012834:Silver
chemical_list: D003722:Dental Alloys; D012834:Silver; D010165:Palladium
vernacular_title: Untersuchungen zur werkstoffgerechten Verarbeitung von Silber-Palladium-Gusslegierungen.