Phase Equilibria in the ZnO-“FeO”-SiO2 System in Reducing Atmosphere and in the ZnO-“FeO”-SiO2-“Cu2O” System in Equilibrium with Liquid Copper Metal at 1250 °C (1523 K)

2018 ◽  
Vol 49 (4) ◽  
pp. 1766-1780 ◽  
Author(s):  
Taufiq Hidayat ◽  
Peter C. Hayes ◽  
Evgueni Jak
Keyword(s):  
Phase Equilibria ◽  
Liquid Copper ◽  
Copper Metal ◽  
Sio2 System ◽  
Reducing Atmosphere

scholarly journals A study on phase equilibria in the CaO-Al2O3-SiO2-“Nb2O5”(5 mass pct) system in reducing atmosphere

2013 ◽  
Vol 49 (2) ◽  
pp. 145-151
Author(s):  
B. Yan ◽  
R. Guo ◽  
J. Zhang
Keyword(s):  
Phase Equilibria ◽  
Weight Ratio ◽  
Phase Relationship ◽  
Liquid Equilibrium ◽  
Two Phase ◽  
Sio2 System ◽  
Reducing Atmosphere ◽  
Isothermal Equilibration ◽  
Relationship Of ◽  
Equilibrium Region

Phase equilibria in 5 mass% ?Nb2O5? plane of CaO-Al2O3-SiO2-?Nb2O5? system at 1873 K in an oxygen partial pressure of 1.78?10-6 Pa have been investigated through isothermal equilibration and quenching followed by EPMA examinations. In order to characterize the effect of niobium oxide on the phase relationship of the CaO-Al2O3-SiO2 system, Nb2O5-containing and Nb2O5-free samples with the same CaO/Al2O3/SiO2 weight ratio were investigated simultaneously. The ratios of CaO/Al2O3/SiO2 were selected from the CaO?2Al2O3-liquid two-phase equilibrium region in the CaO-Al2O3- SiO2 system at1873 K. It was found that the adding of 5 mass% Nb2O5 to the CaO-Al2O3-SiO2 system caused the original CaO?2Al2O3-liquid equilibrium to become three different new equilibria. The three equilibria were single liquid phase, CaO?6Al2O3-liquid and gehlenite-CaO?2Al2O3-liquid equilibrium respectively. The gehlenite phase may be a new solid solution of 2CaO?Al2O3?SiO2 and NbOx with melting point higher than 1873 K.

Heats of fusion and phase equilibria in the MgOSiO2 system

Calphad ◽  
1989 ◽  
Vol 13 (1) ◽  
pp. 33-43 ◽  
Author(s):  
Reed A. Howald ◽  
Matthew J. Scanlon
Keyword(s):  
Phase Equilibria ◽  
Sio2 System

scholarly journals Phase Equilibria and Thermodynamic Properties of the CaO-MnO-Al2O3-SiO2 System by Critical Evaluation, Modeling and Experiment

2004 ◽  
Vol 44 (6) ◽  
pp. 975-983 ◽  
Author(s):  
Youn-Bae Kang ◽  
In-Ho Jung ◽  
Sergei A. Decterov ◽  
Arthur D. Pelton ◽  
Hae-Geon Lee
Keyword(s):  
Thermodynamic Properties ◽  
Phase Equilibria ◽  
Critical Evaluation ◽  
Sio2 System

Phase equilibria in the Li4SiO4Li2SiO3 region of the pseudobinary Li2OSiO2 system

1996 ◽  
Vol 230 (1) ◽  
pp. 8-11 ◽  
Author(s):  
S. Claus ◽  
H. Kleykamp ◽  
W. Smykatz-Kloss
Keyword(s):  
Phase Equilibria ◽  
Sio2 System
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