title: [Changes in the metallic phase at the metal-ceramic margin of baked alloys of nonprecious metals].
abstract: Five base metal alloys were investigated to determine if phase changes in the alloy microstructure occurred as a result of the porcelain baking procedure. It was found that during the oxidation treatments concentration changes in the alloy surface led to a depletion of certain elements in four of the alloys investigated. It was also found that phase changes could occur in a region 20 micrometers wide next to the alloy surface. Phase changes and alloying element depletion occurs as a result of the oxidation treatments prior to the fusion of porcelain and not as a result of or during porcelain fusion.
mesh_terms: D000134:Acid Etching, Dental; D002516:Ceramics; D002857:Chromium; D003722:Dental Alloys / Q000592:standards*; D001840:Dental Bonding; D009532:Nickel
chemical_list: D003722:Dental Alloys; D002857:Chromium; D009532:Nickel
vernacular_title: Veränderung der metallischen Phasen an der Grenze Metall-Keramik bei Aufbrennlegierungen aus Nichtedelmetall.