Thermodynamic properties of spinel MgAl2O4: A mass spectrometric study


Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription Access

Abstract

The activities of oxides in stoichiometric spinel MgAl2O4 in the temperature range 1851–2298 K were determined from the data obtained by the Knudsen effusion mass spectrometry. The resulting Gibbs energies of spinel formation from simple oxides, the enthalpies and entropies of spinel formation from simple oxides (–12.02 ± 1.14 kJ/mol and 5.03 ± 0.56 J/(mol K), respectively), and the spinel melting enthalpy (55.81 ± 4.62 kJ/mol) satisfactorily agree with the available thermodynamic data.

About the authors

S. I. Shornikov

Vernadskii Institute of Geochemistry and Analytical Chemistry

Author for correspondence.
Email: sergey.shornikov@gmail.com
Russian Federation, Moscow

Supplementary files

Supplementary Files
Action
1. JATS XML

Copyright (c) 2017 Pleiades Publishing, Ltd.