Thermodynamic modeling of the Fe-Mg-Si system
نویسندگان
چکیده
منابع مشابه
Thermodynamic modeling of the Hf-Si-O system
The Hf-O system has been modeled by combining existing experimental data and first-principles calculations results through the CALPHAD approach. Special quasirandom structures of α and β hafnium were generated to calculate the mixing behavior of oxygen and vacancies. For the total energy of oxygen, vibrational, rotational and translational degrees of freedom were considered. The Hf-O system was...
متن کاملHPHT Diamond Crystallization in the Mg-Si-C System: Effect of Mg/Si Composition
Crystallization of diamond in the Mg-Si-C system has been studied at 7.5 GPa and 1800 ◦C with the Mg-Si compositions spanning the range from Mg-C to Si-C end-systems. It is found that as Si content of the system increases from 0 to 2 wt %, the degree of the graphite-to-diamond conversion increases from about 50 to 100% and remains at about this level up to 20 wt % Si. A further increase in Si c...
متن کاملThermodynamic Modeling of Hydrogen Storage Capacity in Mg-Na Alloys
Thermodynamic modeling of the H-Mg-Na system is performed for the first time in this work in order to understand the phase relationships in this system. A new thermodynamic description of the stable NaMgH3 hydride is performed and the thermodynamic models for the H-Mg, Mg-Na, and H-Na systems are reassessed using the modified quasichemical model for the liquid phase. The thermodynamic propertie...
متن کاملFe-Mg order-disorder in orthopyroxene: equilibrium fractionation between the octahedral sites and thermodynamic analysis
The equilibrium intracrystalline distribution coecient, k D, of Fe (i.e. Fe +Mn) and Mg between the M1 and M2 sites of three natural nearly binary Fe-Mg orthopyroxene crystals (Fs14, Fs15 and Fs49) were determined by annealing experiments at several temperatures between 550 and 1000 °C and single crystal X-ray structure re®nements. In addition, the X-ray data of an orthopyroxene crystal (Fs23)...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Mining and Metallurgy, Section B: Metallurgy
سال: 2007
ISSN: 1450-5339,2217-7175
DOI: 10.2298/jmmb0701039d