Thermodynamic analysis of the self-propagating high-temperature synthesis of scandium and lutetium oxides nanopowders

Using the method of valence states of atoms in a chemical compound, we have calculated the standard enthalpies of formation for the reaction systems lutetium nitrate–lutetium acetate, scandium nitrate–scandium acetate, scandium nitrate–scandium acetylacetonate, and scandium nitrate–glycine. To optim...

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Bibliographic Details
Published in:Inorganic materials 2015-09, Vol.51 (9), p.958-963
Main Authors: Gavrishchuk, E. M., Klyusik, O. N., Kut’in, A. M., Permin, D. A.
Format: Article
Language:English
Subjects:
Acetates
Adiabatic flow
Chemistry
Chemistry and Materials Science
Fuels
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Lutetium
Materials Science
Nanostructure
Oxidants
Scandium
Self-propagating synthesis
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Summary:Using the method of valence states of atoms in a chemical compound, we have calculated the standard enthalpies of formation for the reaction systems lutetium nitrate–lutetium acetate, scandium nitrate–scandium acetate, scandium nitrate–scandium acetylacetonate, and scandium nitrate–glycine. To optimize the composition of precursors for the self-propagating high-temperature synthesis of Sc 2 O 3 and Lu 2 O 3 nanopowders, we have analyzed the influence of the nature of the fuel and the oxidant to fuel ratio in the starting mixture on the adiabatic temperature and thermodynamically substantiated composition of reaction products.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168515090058