journal article·2014-12

Critical thermodynamic evaluation of oxide systems relevant to fuel ashes and slags: Potassium oxide–magnesium oxide–silica

Elena Yazhenskikh, Tatjana Jantzen, Klaus Hack, Michael Müller

Calphad· Volume 47
Publisher page

Abstract

Abstract The K 2 O–MgO–SiO 2 system has been thermodynamically assessed. The modified associate species model was applied to the liquid phase while the solubility of SiO 2 in K 2 MgSiO 4 has been treated with a multi-sublattice model. The resulting new databank was used for the representation of the phase equilibria in the ternary system including several quasi-binary sections of the ternary diagram. The calculated phase relations are in good agreement with the experimental data. The phase equlibria in the unmeasured region were proposed on the basis of the obtained new databank.
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Research context

OpenAlex topics: Metallurgical Processes and Thermodynamics · Nuclear materials and radiation effects · Glass properties and applications

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References (48)

Show source-provided references
1. Critical thermodynamic evaluation of oxide systems relevant to fuel ashes and slags, Part 1: alkali oxide – silica systems10.1016/j.calphad.2006.03.003 ↗
2. Critical thermodynamic evaluation of oxide systems relevant to fuel ashes and slags, Part 4: sodium oxide-potassium oxide-silica10.1016/j.calphad.2008.06.002 ↗
3. The system K2O–MgO–SiO2, part 110.2475/ajs.249.2.81 ↗
4. The system K2O–MgO–SiO2, part 210.2475/ajs.249.3.224 ↗
5. Critical thermodynamic evaluation of oxide systems relevant to fuel ashes and slags, Part 5: potassium oxide–alumina–silica10.1016/j.calphad.2010.10.010 ↗
6. Thermodynamic analysis of silica refractory corrosion in glass melting furnaces10.1149/1.1337603 ↗
7. Thermodynamic modelling of oxide glasses10.1111/j.1151-2916.2002.tb00552.x ↗
8. Viscosity model for oxide melts relevant to coal ash slags based on the associate species thermodynamic model10.1021/ef401306d ↗
9. The binary system MgO–SiO210.2475/ajs.s4-37.222.487 ↗
10. Immiscibility in silicate melts; Part II
11. Equilibria of two immiscibility liquids in systems of alkaline earth silicates
12. Liquid immiscibility in the SiO2 +MgO, SiO2+SrO, SiO2+La203, and SiO2+Y203 systems
13. Crystalline solution in the system MgO–Mg2SiO4–MgAl2O410.1111/j.1151-2916.1965.tb14730.x ↗
14. The solid solubility of Sc2O3, Al2O3, Cr2O3, SiO2 and ZrO2 in MgO10.1016/0390-5519(79)90003-6 ↗
15. A thermodynamic study of (magnesium oxide+silicon dioxide) by mass spectrometry10.1016/0021-9614(83)90136-2 ↗
16. A thermodynamic study of (magnesium oxide+silicon dioxide) by mass spectrometry at 1973K10.1016/0021-9614(84)90085-5 ↗
17. F.D. Richardson, Physical Chemistry of Melts, Inst. of Mining and Met., London, p. 86, 1953.
18. Activities in the liquid solution SiO2–CaO–MgO–Al2O3 at 1600°C
19. Thermodynamic properties of the MgO–SiO2 system by high-temperature mass spectrometry
20. Thermodynamic properties of magnesium silicates
21. Experimental study and modeling of the thermodynamic properties of magnesium silicates10.1134/S0036024406030058 ↗
22. Kharakteristika polikomponentnih visokoosnovnih silikatov sistemi Na2O–K2O–CaO–MgO–SiO2
23. J.F. Schairer, Phase Equilibrium Relations in the Quaternary System K2O–MgO–Al2O3–SiO2 (prel. report), Geological Society of America Meeting, 1948, vol. 59, p. 1349.
24. Structures of synthetic K2MgSi5O12 leucites by integrated x-ray-powder diffraction, electron-diffraction and Si-29 MAS NMR methods10.1107/S0108768193008754 ↗
25. An NMR-study of structure and ordering in synthetic K2MgSi5O12, a leucite analog10.1007/BF00216607 ↗
26. Relationship between order-disorder and elastic phase transitions in framework minerals10.1080/01411599508200430 ↗
27. Monoclinic-orthorhombic phase transition in the K2MgSi5O12 leucite analog10.2138/am-1996-3-411 ↗
28. E.K. Salje, Phase Transitions in Ferroelastic and Co-elastic Crystals. An introduction for mineralogists, material scientists and physicists, Cambridge Books Online, Cambridge University Press, Cambridge, 300 p., 1993
29. Synthetic magnesian merrihueite, dipotassium pentamagnesium dodecasilicate: a teahedral magnesiosilicate framework crystal structure10.1107/S0567740872002171 ↗
30. Phase equilibrium research in portions of the potassium oxide–magnesium oxide–iron (III) oxide–aluminium oxide–silicon dioxide system10.1021/ba-1970-0186.ch020 ↗
31. Crystal structures of the body-centered tetragonal tectosilicates: K1.14Mg0.57Si1.43O4, K1.10Zn0.55Si1.45O4, and K1.11Fe31.11Si0.89O4
32. The system K2O–Al2O3–SiO2. Part 1. Phases on the KAlSiO4–KAlO2 join
33. Relationship between silicate melt structure and petrologic processes10.1016/0012-8252(90)90055-Z ↗
34. The structure groups of alkali silicate glassesdetermined from 29Si MAS-NMR10.1016/0022-3093(91)90400-Z ↗
35. Quantitative Raman spectroscopy: high-temperature speciation of potassium silicate melts10.1016/j.jnoncrysol.2007.06.031 ↗
36. A Raman spectroscopic study of glasses in the system CaO–MgO–SiO2
37. K.E. Spear, Private Communication.
38. FactSage thermochemical software and databases10.1016/S0364-5916(02)00035-4 ↗
39. Thermodynamic analysis of binary liquid silicates and prediction of ternary solution properties by modified quasichemical equations10.1016/0016-7037(87)90009-3 ↗
40. A network model for the thermodynamics of multicomponent silicate melts. I. Binary mixtures MO–SiO210.1016/0364-5916(88)90014-4 ↗
41. A study of the thermodynamic properties of MgO–SiO2 system10.1016/0364-5916(89)90005-9 ↗
42. Thermodynamic calculation of some subsystems of the Al–Ca–Mg–Si–O system10.1007/BF02667878 ↗
43. Prediction of the thermodynamic properties and phase diagrams of silicate systems-evaluation of the FeO–MgO–SiO210.2355/isijinternational.33.26 ↗
44. An assessment of the one-bar liquidus phase relations in the MgO–SiO2 system10.1016/0364-5916(94)90025-6 ↗
45. Thermodynamic assessment of the CaO–MgO–SiO2 systen10.1007/BF02671244 ↗
46. Thermodynamic modelling of melting in the system FeO–MgO–SiO2–O2 at pressure of 1bar10.1016/S0364-5916(00)00018-3 ↗
47. Assessment of thermodynamic functions in the MgO–Al2O3–SiO2 system10.3139/146.018024 ↗
48. Thermodynamics and phase stability in the Si–O system10.1016/j.jnoncrysol.2003.12.057 ↗