Phase relations and thermodynamics of the system Fe-Cr-0 in the temperature range of 1600 °C to 1825 °C (1873 to 2098 K) under strongly reducing conditions

1991 ◽  
Vol 22 (5) ◽  
pp. 689-703 ◽  
Author(s):  
N. Y. Toker ◽  
L. S. Darken ◽  
Arnulf Muan
Keyword(s):  
Phase Relations ◽  
Temperature Range ◽  
Reducing Conditions

Thermodynamics of Sr2NiMoO6 and Sr2CoMoO6 and their stability under reducing conditions

2018 ◽  
Vol 20 (30) ◽  
pp. 20108-20116 ◽  
Author(s):  
V. V. Sereda ◽  
D. S. Tsvetkov ◽  
A. L. Sednev ◽  
A. I. Druzhinina ◽  
D. A. Malyshkin ◽  
...  
Keyword(s):  
Thermodynamic Functions ◽  
Broad Temperature Range ◽  
Temperature Range ◽  
Reducing Conditions

Essential thermodynamic functions, obtained for Sr2NiMoO6 and Sr2CoMoO6 in broad temperature range, allowed to evaluate their stability in reducing conditions.

Activity of chromium oxide and phase relations for the CaO-SiO2-CrOXsystem at 1873 K under moderately reducing conditions

1999 ◽  
Vol 70 (8-9) ◽  
pp. 319-324 ◽  
Author(s):  
Kazuki Morita ◽  
Mamiko Mori ◽  
Muxing Guo ◽  
Toru Ikagawa ◽  
Nobuo Sano
Keyword(s):  
Chromium Oxide ◽  
Phase Relations ◽  
Reducing Conditions

Phase relations in the BaOTiO2−δ system under highly reducing conditions

2003 ◽  
Vol 38 (4) ◽  
pp. 545-553 ◽  
Author(s):  
D.S Filimonov ◽  
Z.-K Liu ◽  
C.A Randall
Keyword(s):  
Phase Relations ◽  
Reducing Conditions

Zu den Phasenverhältnissen im System V/Nb/O, III Die Koexistenzbeziehungen der Mischkristallreihe V1−x-NbxO2 zu den binären und ternären Phasen der Subsysteme VO2/NbO2/V2O3 und VO2/NbO2/V2O 5/Nb2O5 / The Phase Relations in the System V/Nb/O , III Coexistance Relations of Mixed Crystals V1−x-NbxO2 to the Binary and Ternary Phases of Subsystems VO2/NbO2/V2O3 und VO2/NbO2/V2O 5/Nb2O5

1997 ◽  
Vol 52 (10) ◽  
pp. 1155-1164
Author(s):  
F. von Woedtke ◽  
L. Kirsten ◽  
H. Oppermann
Keyword(s):  
Phase Diagram ◽  
Solid State ◽  
Ternary System ◽  
Chemical Transport ◽  
Phase Relations ◽  
Mixed Crystals ◽  
Solid State Reactions ◽  
Temperature Range

Mixed crystals V1−XNbXO2 exist about the whole area of quasibinary line VO2-NbO2. The phase relations between these compositions VO2-NbO2 and the binary and ternary phases of the described subsystems were cleared using chemical transport reactions (CTR) and solid state reactions. A more precise phase diagram of the ternary system V/Nb/O is given for the temperature range of 900 - 1000°C.

scholarly journals Phase relations in the model pyrolite at 2.5, 3.0, 7.0 GPа and 1400–1800°c: evidence for the formation of high-chromium garnets

2019 ◽  
Vol 64 (9) ◽  
pp. 974-985
Author(s):  
E. А. Matrosova ◽  
А. А. Bendeliani ◽  
A. V. Bobrov ◽  
A. A. Kargal’tsev ◽  
Yu. A. Ignat’ev
Keyword(s):  
Solid Solution ◽  
Partial Melting ◽  
Phase Relations ◽  
High Chromium ◽  
Temperature Range ◽  
Si Content ◽  
Increasing Temperature

Based on study of partial melting in the model pyrolite, it is shown that garnets synthesized at 7.0 GPa in a temperature range of 1400–1800°C are characterized by an excessive Si content (in relation to 3 f.u.), stable admixture of Cr2O3, and, thus, represent a solid solution of the pyrope–majorite–knorringite composition. Increase in the Cr/Al value in the starting composition results in increase of this ratio in garnet. With increasing temperature, the concentration of Cr2O3 decreases in restite and increases in melt. Cr/Al increases in all garnets from the zone of restite and from the quenched melt aggregate. Estimates of the bulk compositions of restite formed by partial melting of the model pyrolite at 2.5 and 3.0 GPa show that the concentration of Cr in it is higher than that in the starting composition. All minerals from the zone of restite are characterized by the high Cr concentrations, and upon partial melting in the spinel-depth facies, Cr is redistributed to restite. Our results show that the formation of high-chromium garnets relates to the protolith with the high Cr/Al value formed as a residue from partial melting in the spinel-depth facies and further transported to the garnet facies.

Phase Relations in the System TiO2-V2O x under Oxidizing and Reducing Conditions

2008 ◽  
Vol 29 (6) ◽  
pp. 482-487 ◽  
Author(s):  
D. Habel ◽  
O. Goerke ◽  
M. Tovar ◽  
E. Kondratenko ◽  
H. Schubert
Keyword(s):  
Phase Relations ◽  
Reducing Conditions
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