Effect of Adding Cr2O3/Fe2O3 on Aluminum Titanate Properties

Effect of Adding Cr2O3/Fe2O3 on Aluminum Titanate Properties The effect of adding Cr2O3/Fe2O3 and sintering temperature on the crystal structure, decomposition, and sintering capacity of aluminum titanate prepared from ferroalloy plant alumina-titania slag and rutile is considered. X-ray diffraction (XRD) and scanning electron microscopy (SEM) are used in order to determine the crystal phase and microstructure of each series of specimens, X’pert Plus software is used for calculating aluminum titanate crystal lattice parameters, and the Archimedes method is used to determine apparent density and open porosity. Research results show that aluminum titanate may be synthesized from alumina-titania slag and rutile by solid phase reaction. Structural defects, formed as a result of the action of adding Cr2O3/Fe2O3, accelerate ion diffusion in aluminum titanate. Thermal defects, caused by action of high temperature, also facilitate aluminum titanate formation. The rate of aluminum titanate decomposition is reduced due to a solid solution within which Cr3+ and Fe3+ in the Cr2O3/Fe2O3 additive substitute for Ti4+ and Al3+. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Effect of Adding Cr2O3/Fe2O3 on Aluminum Titanate Properties

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Springer US
Copyright © 2015 by Springer Science+Business Media New York
Material Science; Characterization and Evaluation of Materials; Materials Science, general; Ceramics, Glass, Composites, Natural Methods
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