Thermodynamic Modeling of Equilibrium Subsolidus Phase Relations in the Ag-Pd-O₂ SystemJournal of the American Ceramic Society
AbstractFrom literature values of the thermodynamic activity of Pd in Ag/Pd solid solutions and the Gibbs free energy of formation of PdO as a function of temperature, subsolidus equilibrium phase relations in the Pd-Ag-O2 system have been calculated and compared to results from high-temperature XRD analyses. the developed model takes into account the nonideal activity of Pd in Ag/Pd solid solutions and confirms that increasing the Ag/Pd ratio or decreasing the oxygen activity decreases the temperature at which PdO reduces. It also accurately predicts that the temperature range over which the PdO reduces is broad for Ag-rich compositions, and narrow for Pd-rich compositions.
Department(s)Materials Science and Engineering
Keywords and Phrases
Document TypeArticle - Journal
Rights© 1991 Wiley-Blackwell, All rights reserved.
Citation InformationSea-Fue Wang and Wayne Huebner. "Thermodynamic Modeling of Equilibrium Subsolidus Phase Relations in the Ag-Pd-O₂ System" Journal of the American Ceramic Society (1991)
Available at: http://works.bepress.com/wayne-huebner/3/