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Oxygen Pressure Dependence of Lead Ion Transport in PbO‐SiO 2 Melts
Author(s) -
Pal Uday B.,
DebRoy Tarasankar,
Simkovich George
Publication year - 1985
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1985.tb15308.x
Subject(s) - thermal diffusivity , oxygen , silicate , lead (geology) , ion , materials science , thermodynamics , diffusion , oxygen pressure , mineralogy , chemistry , analytical chemistry (journal) , geology , organic chemistry , geomorphology , chromatography , physics
The diffusivity of lead in a PbO‐SiO 2 melt was determined as a function of oxygen pressure from kinetic data for the oxidation of liquid lead covered by a layer of lead silicate melt which is short‐circuited to facilitate electronic transport. The diffusivity‐oxygen pressure relation thus obtained agreed well with the corresponding prediction based on definitions of the fluxes ofPb 2+ and electron holes and an appropriate equilibrium relation.