An optimized set of thermodynamic functions for the K 2 O-SiO 2 system at 10 5 Pa pressure was obtained by considering available phase diagram and thermodynamic data. KSi 0.25 O and SiO 2 were selected as components for the liquid phase. With respect to these components, the highly non-...
Phase Diagram of Na2O-B2O3-SiO2 System The binary isopleth Na2O.B2O3-SiO2 of the Na2O-B2O3 SiO2 ternary sy... Kazem,Ghanbari-Ahari,Andrew,... - 《Journal of the American Ceramic Society》 被引量: 12发表: 1993年 K2O—B2O3—SiO3系统玻璃结构的光谱研究 本文应用红外光谱和嘈曼光谱分析技术...
account for the failure of muscovite to produce potassium feldspar and mullite as predicted by the equilibrium phase diagram for the system K2OAl2O3SiO2... SG Barlow,DAC Manning - 《British Ceramic Transactions》 被引量: 69发表: 1999年 Acicular Mullite Crystals in Vitrified Kaolin The microstruct...
The experimental results are visualized in a phase diagram (Fig. 2). The most important equilibrium, annite+muscovite+3 quartz=garnet+2 sanidine+2 H2O has been treated thermdynamically. The heat of reaction is about 49 kcal. Based upon this value, the heat of formation for almandite garnet...
theindexofrefractionofthemodulatormaterial canbefullymatchedwiththatoftheothercomponentsofthe waveguidechannelsimplybyvaryingthecompositionofthe glass. Uptonowthermalpolinghasbeenappliedpredomi- natelytophase-uniformglasses—quartzglassesdopedwith Ge,OHgroups,andalkalications[1]—andmulticompo- nentglassescontaining...
Available thermodynamic and phase diagram data have been evaluated for all phases in the Na2O-SiO2 and K2O-SiO2 systems at 1 bar pressure from 298 K to above the liq-uidus temperatures. All reliable thermodynamic and phase diagram data have been simultaneously optimized in order to obtain one ...
K2O-SiO2Thermodynamic optimizationPhase diagramThermal analysisSealed Pt capsuleKey phase diagram experiments and thermodynamic opJournal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy ...
The set of optimized model parameters obtained for all phases reproduces available and reliable thermodynamic properties and phase diagram data as well as the melt structure of the K2O-Al2O3-SiO2 system within the experimental error limits.
Key phase diagram experiments were conducted to reveal the phase diagram of the KO-MgO system using thermal analysis and equilibration techniques with sealed platinum capsules. The peritectic reaction of liquid + MgO → KMgOwas determined at 1131 K ± 14 K (858 °C ± 14 °C) for the ...
Phase diagramSlagExperimental data of solid-liquid phase equilibria in the K2O-CaO-SiO2 systems vital for many technologies and industrial applications are very limited and even not available at some primary phase fields. In the present study, by using Equilibration-Quenching-Phase compositional ...