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DE2005836058

Publication Date	2005
Page Count	12
Abstract	The goals are: to develop high temperature oxide melt solution calorimetric techniques for a variety of nitrides and oxynitrides; to determine thermodynamics of silicon nitride and of ternary phases in rare earth oxide-silica-alumina-nitrogen systems relevant to silicon nitride processing, thermal barrier coatings, and other applications; to develop systematic understanding of the energetics of oxygen-nitrogen substitution, often coupled with altervalent cation substitution, in a variety of oxynitride systems; and to measure enthalpies of formation of a number of binary and ternary nitrides, often containing transition metals, and to begin to develop a systematic understanding of structure-energy relations analogous to that developed for oxide compounds.
Keywords	Thermochemistry Nitrides Oxynitrides Calorimetry Solid electrolytes Oxygen compounds Aluminum oxides Ceramics Silicon nitrides Enthalpy Thermal barriers Coatings
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	California Univ., Davis.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200607

Thermochemical Studies of Nitrides, Oxynitride, and Oxide Ceramic Materials.(Report for July 1, 1997-June 30, 2003).

Thermochemical Studies of Nitrides, Oxynitride, and Oxide Ceramic Materials.(Report for July 1, 1997-June 30, 2003).
DE2005836058

Publication Date	2005
Page Count	12
Abstract	The goals are: to develop high temperature oxide melt solution calorimetric techniques for a variety of nitrides and oxynitrides; to determine thermodynamics of silicon nitride and of ternary phases in rare earth oxide-silica-alumina-nitrogen systems relevant to silicon nitride processing, thermal barrier coatings, and other applications; to develop systematic understanding of the energetics of oxygen-nitrogen substitution, often coupled with altervalent cation substitution, in a variety of oxynitride systems; and to measure enthalpies of formation of a number of binary and ternary nitrides, often containing transition metals, and to begin to develop a systematic understanding of structure-energy relations analogous to that developed for oxide compounds.
Keywords	Thermochemistry Nitrides Oxynitrides Calorimetry Solid electrolytes Oxygen compounds Aluminum oxides Ceramics Silicon nitrides Enthalpy Thermal barriers Coatings
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	California Univ., Davis.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200607