A containerless study of short-range order in high-temperature Fe–Si–Al–Ca–Mg–Cr–Cu–Ni oxide systems

摘要: Abstract The short-range order of a composite Fe–Si–Al–Ca–Mg–Cr–Cu–Ni oxide system in the liquid state (1500 °C) during aerodynamic levitation was studied by high-energy X-ray diffraction and subsequent Reverse Monte Carlo simulations. Structural analysis resulting supercells revealed presence sialate network consisting SiO 4 tetrahedra chains terminated AlO units. Network modifying Fe Mg atoms within cavities provided necessary charge neutrality. Ca were largely uncoordinated, while Cr, although not assuming forming role, maintained 4-fold coordination, effectively reducing amount bridging O melt. Due to their low concentration, Cu Ni species included analysis. stereochemistry most probable atomic cluster, characteristic derived.