Download or read book Thermodynamic Assessment of the CaO MgO Sio2 System written by Weiming Huang and published by . This book was released on 1993 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermodynamic Assessment of the CaO MgO Al2O3 System written by Bengt Hallstedt and published by . This book was released on 1992 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Thermodynamic Properties of the Oxide Systems CaO MgO SiO2 and MgO Al2O3 SiO2 written by David Henderson and published by . This book was released on 1964 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermodynamic study of the FeO MgO Al sub 2O sub 3 SiO sub 2 system written by Olga Fabrichnaya and published by . This book was released on 1998 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coupled Experimental Study and Thermodynamic Optimization of the K2O Na2O CaO MgO Al2O3 SiO2 System written by Dong-Geun Kim and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Phase diagram and thermodynamic properties of the K2O-Na2O-CaO-MgO-Al2O3-SiO2 system are important in various applications, such as glass/glass-ceramics, biomass combustion, steelmaking, refractory, and geology/mineralogy. In the present work, a critical evaluation and optimization of the phase diagram and thermodynamic properties of this six-component system was performed to develop an accurate thermodynamic database for industrial and academic research. Sub-binary/ternary systems containing K2O were thermodynamically optimized based on the critical assessment of all experimental data available in the literature, and a consistent set of model parameters of solid and liquid phases describing their Gibbs energies was obtained. Key phase diagram experiments were performed for the K2O-SiO2, K2O-Al2O3, and K2O-MgO systems in order to provide new phase diagram information and resolve the inconsistencies between existing experimental data. Equilibration/quenching experiments and thermal analyses were performed using K2O-containing samples sealed in Pt capsules to overcome the experimental difficulties (high hygroscopicity and volatile nature of K2O) and provide reliable results. In the study of the K2O-SiO2 system, the eutectic reaction, Liquid → K4SiO4 + K2SiO3, was successfully measured at 714 ± 6 °C. In the K2O-MgO system, the peritectic reaction of Liquid + MgO → K6MgO4 was determined to occur at 858 ± 14 °C. These two invariant reactions were determined for the first time. In the K2O-Al2O3 system, the thermal stability of K [beta]ʹʹ-alumina was confirmed up to 1600 °C from the present experiments, and a large discrepancy in the literature related to the eutectic temperature of Liquid → KAlO2 + [beta]-alumina was resolved.In the optimization of this study, the Modified Quasichemical Model (MQM) and Compound Energy Formalism (CEF) were used to describe the liquid and solid solutions, respectively, based on the structure of the solutions. In particular, solid solutions were modeled considering their lattice structure, in this way, a proper configurational entropy of the solution could be treated in the thermodynamic calculations. In the study of K2O-MgO-Al2O3 system, for example, a new solid solution model was developed to describe the details of ionic substitutions in non-stoichiometric K [beta]- and [beta]ʹʹ-alumina solutions. In both K2O-MgO-SiO2 and K2O-Al2O3-SiO2 melt, associates K2MgSiO4 and KAlO2 were considered, respectively, to describe the phase diagram, thermodynamic properties and structural data of liquid phase more accurately. With the model parameters optimized in binary and ternary systems, the phase diagram and thermodynamic properties of higher order systems in the K2O-Na2O-CaO-MgO-Al2O3-SiO2 system were well predicted. The database developed in this study is compatible with the FactSage thermodynamic databases and can be used for the prediction of any unexplored thermodynamic properties and phase diagram within the six-component system. Case studies of several industrial applications were also included at the end of this study." --
Download or read book Thermodynamic and Thermophysical Properties of Selected Phases in the MgO SiO2 H2O CO2 CaO Al2O3 SiO2 H20 CO2 and Fe FeO Fe2O3 SiO2 Chemical Systems with Special Emphasis on the Properties of Basalts and Their Mineral Components written by G. R. Robinson and published by . This book was released on 1983 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coupled Thermodynamic Modeling and Experimental Study of Na2O FeO Fe2O3 CaO MgO A12O3 SiO2 System written by Elmira Moosavi Khoonsari and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The significance of the Na2O-FeO-Fe2O3-CaO-MgO-Al2O3-SiO2 system stems from its applications in industrial processes and natural phenomena. This system in whole or in part was studied for the cooling system of fast breeder reactors, the desulfurization of hot metal and liquid steel, the production of bioactive glasses, coal-combustion slags, the reduction process of bauxite with soda for the production of Al2O3, and the production of solid-state electrodes for electrochemical cells. It also possesses many well-known minerals such as wüstite, spinel, corundum, aegirine, etc. which are of importance in geology. However, phase equilibria in this system are indeed very complex due to the change of Fe oxidation state with oxygen partial pressure and the substitution of Fe3+ by Al3+ in solid solutions. Moreover, the high vapor pressure of sodium, hygroscopicity, high viscosity of SiO2-rich melts, and high fluidity of Na2O- and FeO-rich melts make the experimental study of this system quite challenging. As a result, experimental results in this system were often inconsistent and limited in terms of composition and temperature. Therefore, the construction of a coherent thermodynamic database for the Na2O-FeO-Fe2O3-CaO-MgO-Al2O3-SiO2 system is essential to optimize existing material processes and to develop new processes and advanced materials.All solid and liquid phases of two binaries, six ternaries and two multicomponent sub-systems in the Na2O-FeO-Fe2O3-CaO-MgO-Al2O3-SiO2 system were critically evaluated and optimized in the current study. Using proper thermodynamic models considering the crystal structure of each phase reduces the number of model parameters and thus, enhances the predictive ability of models especially in high order systems. The molten oxide phase was modeled using the Modified Quasichemical Model which takes into account second-nearest-neighbor cation ordering. Extensive solid solutions such as meta-oxides, [beta]"-alumina and pyroxene were treated within the frame work of Compound Energy Formalism with the consideration of their sublattice crystal structures. The wüstite solid solution was modeled using polynomial expansions of the excess Gibbs energy. The sulfide dissolution in the molten oxide phase was modeled using the Modified Quasichemical Model in quadruplet approximation taking into account both first and second-nearest-neighbor short range ordering, simultaneously. Experimental data in the Na2O-FeO-Fe2O3-Al2O3 system were very limited. Hence, key phase diagram experiments and thermodynamic optimization were conducted in this system. Phase diagram experiments were performed using the quenching method followed by Electron Probe Micro-Analysis and X-Ray Diffraction for phase identification. Two- and three-phase equilibria of this system including solid and liquid phases were determined, and the presence of [beta]"-alumina solid solution with a large miscibility gap was revealed for the first time in this work. The developed database was applied to predict the sulfide dissolution in the Na2O-FeO-Fe2O3-CaO-MgO-MnO-Al2O3-SiO2 molten oxide phase which is of high importance for the production of low sulfur steels. Based on the present thermodynamic modeling results, it was shown, for the first time, that the sulfide capacity of Na2O-containing oxide melts is not always a unique property of a given melt composition, and can vary with the gas composition in equilibrium with the oxide melt." --
Download or read book Solution Calorimetry written by K. N. Marsh and published by Wiley-Blackwell. This book was released on 1994-01-01 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthetic organic chemistry is currently advancing in many new and exciting directions. Formation of C-H, C-O and C-C bonds with high diastero- and enantio-selectivity is still emerging; and as methods such as these develop, sythetic strategies to complex organic molecules follow. By being able to make structural entities at will, the prospect for understanding molecular function,"
Download or read book Thermodynamic and Thermophysical Properties of Selected Phases in the MgO SiO2 H20 C02 CaO Al2O3 SIO2 H20 CO2 and Fe Fe0 Fe203 Si02 Chemical Systems with Special Emphasis on the Properties of Basalts and Their Mineral Components written by G. R. Robinson and published by . This book was released on 1983 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Thermodynamic Evaluation of the Al2O3 CaO SiO2 System written by Xizhen Wang and published by . This book was released on 1989 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermodynamic and Thermophysical Properties of Selected Phases in the MgO SiO2 H2O CO2 CaO Al2O3 SiO2 H2O CO2 and Fe FeO Fe2O3 AlO2 Chemical Systems with Special Emphasis on the Properties of Basalts and Their Mineral Components written by G. R. Robinson and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Refractory Technology written by Ritwik Sarkar and published by CRC Press. This book was released on 2023-08-11 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explains the refractories from different fundamental aspects, even with the support of phase diagrams, and also details the prominent applications of these industrial materials. The initial chapters cover fundamentals of refractories, classifications, properties, and testing, while later chapters describe different common shaped and unshaped refractories in detail and special refractories in a concise manner. The second edition includes new classifications, microstructures, the effect of impurities with binary and ternary phase diagrams, and recent trends in refractories including homework problems and an updated bibliography. Features: Provides exclusive material on refractories Discusses detailed descriptions of different shaped and unshaped refractories Covers concepts like environmental issues, recycling, and nanotechnology Explores details on testing and specifications including thermochemical and corrosion behavior Includes a separate chapter on trends of refractories and other issues This book is aimed at junior/senior undergraduate students and researchers of ceramics, metallurgical engineering, and refractories.
Download or read book Coupled Thermodynamic Modeling and Experimental Study of the SnO2 SnO CaO SiO2 System written by Tiantian Yin and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The prediction of thermodynamic properties and phase equilibria of an oxide system can play an important role in the development and understanding of metallurgical, ceramic and geological processes. The thermodynamic databases, developed by a critical evaluation and optimization of all existing thermodynamic properties and phase diagram, can help in understanding the reaction mechanism in various industrial processes and in developing new technology for various industries.As part of a large thermodynamic database development for glassmaking applications, all solid and liquid oxide phases of the Sn-Si-Ca-O system were critically evaluated and optimized in the present study. All the unary, binary and ternary systems have been critically evaluated and optimized based upon the available phase equilibrium and thermodynamic data. Particularly, the liquid solution was described by the Modified Quasichemical Model with consideration of both SnO and SnO2. Due to the lack of the phase diagram data, phase diagram experiments of the SnO2-SiO2 system were performed for the first time using the quenching method followed by Electron Probe Micro-Analysis and X-Ray Diffraction for phase identification. The optimization results of all systems in this study is self-consistent. All the thermodynamic calculations in the present study were carried out using FactSageTM thermodynamic software." --
Download or read book Experimental determination and thermodynamic calculation of equilibria in the system CaO MgO SiO2 H2O CO2 written by John Slaughter and published by . This book was released on 1976 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book TMS 2022 151st Annual Meeting Exhibition Supplemental Proceedings written by The Minerals, Metals & Materials Society and published by Springer Nature. This book was released on 2022-03-11 with total page 1597 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection presents papers from the 151st Annual Meeting & Exhibition of The Minerals, Metals & Materials Society.
Download or read book Thermodynamic Tabulations for Selected Phases in the System CaO Al2O3 SiO2 H2O written by John L. Haas and published by . This book was released on 1980 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermodynamic Modeling of Geologic Materials written by Ian S. E. Carmichael and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-17 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 17 of Reviews in Mineralogy is based on a short course, entitled "Thermodynamic Modeling of Geological Materials: Minerals, Fluids amd Melts," October 22-25, 1987, at the Wickenburg Inn near Phoenix, Arizona. Contents: Thermodynamic Analysis of Phase Equilibria in Simple Mineral Systems Models of Crystalline solutions Thermodynamics of Multicomponent Systems Containing Several Solid Solutions Thermodynamic Model for Aqueous Solutions of Liquid-like Density Models of Mineral Solubility in Concentrated Brines with Application to Field Observations Calculation of the Thermodynamic Properties of Aqueous Species and the Solubilities of Minerals in Supercritical Electrolyte Solutions Igneous Fluids Ore Fluids: Magmatic to Supergene Thermodynamic Models of Molecular Fluids at the Elevated Pressures and Temperatures of Crustal Metamorphism Mineral Solubilities and Speciation in Supercritical Metamorphic Fluids Development of Models for Multicomponent Melts: Analysis of Synthetic Systems Modeling Magmatic Systems: Thermodynamic Relations Modeling Magmatic Systems: Petrologic Applications
