title: Mechanical properties of dental Ti-Ag alloys with 22.5, 25, 27.5, and 30 mass% Ag.
abstract: The mechanical properties -tensile strength, yield strength, elongation after fracture, Vickers hardness, and Young's modulus-and the phases of Ti-Ag alloys were investigated, as prepared with 22.5, 25, 27.5, and 30 mass% Ag. The tensile strength, yield strength, hardness, and Young's modulus of the alloys increase with their Ag content up to 25 mass%, but their breaking elongation decreases. These changes in the mechanical properties are attributed to solid-solution strengthening of the α-titanium phase, to Ti2Ag precipitation, and to the formation of eutectic structures composed of α+Ti2Ag. The addition of Ag, at 25 mass% in particular, improves the mechanical properties of these alloys, making them suitable for high strength dental prostheses, such as implantretained superstructures and narrow-diameter implants.
authors.affiliation: Division of Dental Biomaterials, Tohoku University Graduate School of Dentistry.
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Takahashi
authors.forename: Masafumi
authors.initials: M
authors.lastname: Kikuchi
authors.forename: Yukyo
authors.initials: Y
authors.lastname: Takada
mesh_terms: D000497:Alloys; D003722:Dental Alloys / Q000737:chemistry*; D006801:Humans; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D012834:Silver / Q000737:chemistry*; D013314:Stress, Mechanical; D013499:Surface Properties; D013718:Tensile Strength; D014025:Titanium / Q000737:chemistry*
chemical_list: D000497:Alloys; D003722:Dental Alloys; D012834:Silver; D014025:Titanium