Room Temperature Aging of Pd-Cu-Ga Dental Alloys

Authors

William A. Brantley, The Ohio State University
Zhuo Cai, The Ohio State University
Qiang Wu, The Ohio State University
Alan B. Carr, The Ohio State University
John C. Mitchell, The Ohio State University

Abstract

Specimens of three Pd-Cu-Ga dental alloys cast five years ago and subsequently stored at room temperature were reexamined and observed to have lower amounts of the eutectic constituents in the near-surface region than originally present, along with other microstructural changes. This previously unreported room temperature aging behavior of these alloys is attributed to the presence of high-diffusivity paths in the non-equilibrium ascast eutectic structures and to the essential role of the surface for the vacancy diffusion mechanism. These results may have important clinical significance for the ill vivo corrosion resistance and long-term biocompatibility of the Pd-Cu-Ga alloys.

Recommended Citation

Brantley, William A.; Cai, Zhuo; Wu, Qiang; Carr, Alan B.; and Mitchell, John C. (1995) "Room Temperature Aging of Pd-Cu-Ga Dental Alloys," Cells and Materials: Vol. 5: No. 3, Article 4.
Available at: https://digitalcommons.usu.edu/cellsandmaterials/vol5/iss3/4