The crystal chemistry of these minerals is governed by the interplay between the tetrahedral silicate units and various titanium-based polyhedra – often octahedral – that influence the ...

The hematite concentrate returned 68.5% iron, while the magnetite yielded 69.1%. Both also showed low levels of silica, alumina, and phosphorus, impurities that DRI steelmakers seek to avoid.

Fine chemicals manufacture breaks into advanced materials with a new business line in Germany and a strategic partnership ...

The radical oxygen can be generated in the lattice of the new aluminum silicate, Ca12Al14-xSixO33+0.5x, with different Al/Si ratios. The three-dimensional structure of Ca12Al14-xSixO33+0.5x yields ...

Quartz crystal microbalance with dissipation monitoring (QCM-D) was used to investigate dextran adsorption to alumina and silica. Sensitive adsorption measurements combined with determination of ...

This study aims to describe the microstructure evolution of freeze-cast alumina during the sintering process, analyzing grain growth, densification, pore elimination and crystal structure at different ...