Mf. Sorokina et al., X-RAY PHOTOELECTRON-SPECTROSCOPY OF AS-PREPARED AND HYDROGEN-REDUCED LEAD SILICATE-GLASSES, Inorganic materials, 33(5), 1997, pp. 521-525
Surface composition of PbO-SiO2 glasses containing 30-66.7 mol % PbO w
as studied by x-ray photoelectron spectroscopy before and after heat t
reatment in hydrogen. The compositional changes in the nearsurface reg
ion depend on a number of factors: the tendency toward minimization of
the surface energy, the character of the Pb-O bond, vaporization of r
educed lead, and glass structure.