Abstract
The surface of gold alloys containing 0.6 Sn and 0.9 In (wt%) for porcelain bonding, oxidized at 1000°C for 30sec to 60min in air was investigated by ESCA. The oxidation states of both Sn and In were determined by comparing the binding energy of photoelectrons with standard samples. A quantitative analysis of Sn, In, and O on the oxidized surface was also performed on the basis of photoelectron intensity of the spectra.