Analysis of spinel coexistence in the MgO – Al2O3 – TiO2 – FeO …
网页2023年5月31日 · The MgO – Al 2 O 3 − TiO 2 – FeO system is the basis for creating various refractory composite materials with a given composition and unique properties. Spinels of various compositions are of particular interest in this system: MgAl 2 O 4 (magnesium-alumina spinel), FeAl 2 O 4 (hercynite), Fe 2 TiO 4 (ulvospinel), and Mg 2 TiO 4 (quandilite).
1700°C Isothermal Phase Diagram of the MgO-Al2O3-TiO2
网页2022年10月17日 · In this regard, it is important to understand the formation principles of the spinel and pseudobrookite solid solutions. In the present work, the equilibrium phase relations for the MgO-Al2O3-TiO2 system at 1700°C in air were experimentally determined by high-temperature equilibration-quenching technique followed by …
Al 2 O 3 vs TiO 2 compositional relationships in spinel from the …
网页Spinels are from volcaniclastic sandstone (grey crosses), hyaloclastite (grey diamonds) and serpentinites (grey triangles) are compared with compositional fields of spinel from volcanic rocks and...
Thermodynamic assessment of the Al2O3-MgO-TiO2 system
网页2019年6月25日 · Both the Al 2 O 3 -MgO and Al 2 O 3 -TiO 2 systems have one intermediate compound. MgAl 2 O 4 has a normal spinel structure at room temperature, while the degree of inversion increases with temperature. It has a wide homogeneity range at a higher temperature.
(PDF) The Effect of TiO2 on Sinterability and the Formation of Spinels …
网页2014年6月1日 · MgO-Al2O3-TiO2 composite refractories were prepared by using magnesium-aluminate spinel and titanium dioxide as main starting materials and being sintered at high temperature.
Effect of addition of TiO2 on reaction sintered MgO–Al2O3 spinels
网页2000年11月1日 · Three different spinel compositions with MgO:Al 2 O 3 molar ratios 2:1, 1:1 and 1:2 were studied using TiO 2 as an additive up to 2 wt.%. Solid state reaction sintering technique was employed for all the compositions …
The role of TiO2 in the densification of low cement Al2O3–MgO spinel …
网页2007年3月1日 · TiO 2 as an additive exhibited a positive influence on the densification, spinel formation and the reduction of the grain sizes of the formed spinels at elevated temperatures in this system, and modified the physical properties such as firing shrinkage, bulk density, apparent porosity and true density distinctly.
Effect of TiO2 on the properties of ultralow-cement alumina-spinel …
网页The additive TiO2 is shown to exert a positive effect on the formation of spinel and physicomechanical properties of the system. An ultralow-cement castable based on the Al2O3-MgO spinel system is synthesized by the interaction of fused alumina (70%) and sintered periclase (30%) usin
[PDF] Effect of TiO 2 in Spinel Formation and Reactive Sintering of ...
网页In the present study, magnesia and alumina powders along with tetravalent oxide (TiO2) additive was analyzed for its role in reactive densification of spinel in single stage firing process in order to achieve a better binding system for magnesia-based refractories.
Analysis of spinel coexistence in the MgO – Al2O3 – TiO2 – FeO …
网页Analysis of spinel coexistence in the MgO – Al2O3 – TiO2 – FeO system. O. Borysenko, S. Logvinkov, +2 authors. A. Ivashura. Published in AIP Conference Proceedings 2023. Materials Science, Chemistry. View via Publisher. Save to Library. Create Alert. Cite. 10 References. Citation Type. More Filters.
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