Thermodynamic study of the NiO-MgO system in the temperature range 1,073 to 1,473 K by a galvanic cell technique
Abstract
In the present work, the thermodynamic activities of NiO in NiO-MgO solid solutions were measured by means of the ZrO{sub 2}-CaO solid-electrolyte galvanic cell method in the temperature range 1,073 to 1,473 K. The systems shows a near-ideal behavior, while at lower temperatures, the results are anomalous at a high MgO content. Lattice parameter measurements show that the system conforms to Vegard`s law. The enthalpies estimated from the present results are compared with previous work as well as those estimated from theoretical models. A complete thermodynamic description and a calculation of the phase diagram of the NiO-MgO system are enabled by the application of a two-sublattice model.
- Authors:
-
- Royal Inst. of Tech., Stockholm (Sweden). Dept. of Theoretical Metallurgy
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 142337
- Resource Type:
- Journal Article
- Journal Name:
- Metallurgical Transactions, B
- Additional Journal Information:
- Journal Volume: 24B; Journal Issue: 6; Other Information: PBD: Dec 1993
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; NICKEL OXIDES; THERMODYNAMIC ACTIVITY; MAGNESIUM OXIDES; MATHEMATICAL MODELS; ELECTROMOTIVE FORCE; MEASURING METHODS; CERAMICS; METALLURGY
Citation Formats
Jakobsson, A, Sichen, D, and Seetharaman, S. Thermodynamic study of the NiO-MgO system in the temperature range 1,073 to 1,473 K by a galvanic cell technique. United States: N. p., 1993.
Web. doi:10.1007/BF02660993.
Jakobsson, A, Sichen, D, & Seetharaman, S. Thermodynamic study of the NiO-MgO system in the temperature range 1,073 to 1,473 K by a galvanic cell technique. United States. https://doi.org/10.1007/BF02660993
Jakobsson, A, Sichen, D, and Seetharaman, S. 1993.
"Thermodynamic study of the NiO-MgO system in the temperature range 1,073 to 1,473 K by a galvanic cell technique". United States. https://doi.org/10.1007/BF02660993.
@article{osti_142337,
title = {Thermodynamic study of the NiO-MgO system in the temperature range 1,073 to 1,473 K by a galvanic cell technique},
author = {Jakobsson, A and Sichen, D and Seetharaman, S},
abstractNote = {In the present work, the thermodynamic activities of NiO in NiO-MgO solid solutions were measured by means of the ZrO{sub 2}-CaO solid-electrolyte galvanic cell method in the temperature range 1,073 to 1,473 K. The systems shows a near-ideal behavior, while at lower temperatures, the results are anomalous at a high MgO content. Lattice parameter measurements show that the system conforms to Vegard`s law. The enthalpies estimated from the present results are compared with previous work as well as those estimated from theoretical models. A complete thermodynamic description and a calculation of the phase diagram of the NiO-MgO system are enabled by the application of a two-sublattice model.},
doi = {10.1007/BF02660993},
url = {https://www.osti.gov/biblio/142337},
journal = {Metallurgical Transactions, B},
number = 6,
volume = 24B,
place = {United States},
year = {Wed Dec 01 00:00:00 EST 1993},
month = {Wed Dec 01 00:00:00 EST 1993}
}
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