The Sintering of Conductive Rutile: A Model System for Sintering Electronic Ceramics
Titanium dioxide in the rutile form, and doped with ions of normal and stable valence of +5, is a ceramic system which is useful in studying the effects of electron chemical potential on the solid state sintering kinetics of electronic oxides. Calculations of requisite defect concentrations as well as experimental sintering data from carefully characterized starting powders indicate a strong correlation between sintering kinetics and the value of the electron chemical potential in Ta-doped rutile. The correlation appears so strong as to suggest that monitoring the electron chemical potential would allow quantitative predictions as to sintering rates in bulk diffusion controlled densification.
KeywordsFermi Level Oxygen Vacancy Sintered Density Anion Lattice Electron Chemical Potential
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