Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Secondary phases in natural magnesite sintered with addition of titania, ilmenite and zirconia

Secondary phases in natural magnesite sintered with addition of titania, ilmenite and zirconia The detail microstructures of sintered natural magnesite with addition of titania, zirconia and ilmenite mineralisers were studied using scanning electron microscopy (SEM) with special emphasis on energy dispersive X-ray analyses (EDXA). The study was directed towards the determination of secondary phase composition in sintered magnesite with different mineraliser addition. In order to evaluate the secondary phases with addition of transition metal oxides, keeping titania (TiO2) as a reference mineraliser, a natural analog of titania containing iron i.e., Ilmenite (Fe2O3 · TiO2) and pure Zirconia (ZrO2) were added to magnesite which was then sintered up to 1700 °C. The relative behaviour of these pure and mixed oxide mineralisers during the sintering of magnesite has been evaluated with respect to their microstructure and secondary phase composition. The present paper showed that titania addition to natural magnesites resulted in the formation of calcium titanate in the secondary phase upon sintering. Zirconia, on the other hand, did not show any reaction product in the secondary phase. The addition of titania in the form of mixed oxide, ilmenite, also gave rise to calcium titanate formation, providing a similar microstructure, specially with reference to spatial distribution of phases in the secondary phase. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science Springer Journals

Secondary phases in natural magnesite sintered with addition of titania, ilmenite and zirconia

Download PDF
5 pages

Loading next page...
 
/lp/springer-journals/secondary-phases-in-natural-magnesite-sintered-with-addition-of-PriEb6Y3MX

References (4)

Publisher
Springer Journals
Copyright
Copyright © 1999 by Kluwer Academic Publishers
Subject
Materials Science; Materials Science, general; Characterization and Evaluation of Materials; Polymer Sciences; Continuum Mechanics and Mechanics of Materials; Crystallography and Scattering Methods; Classical Mechanics
ISSN
0022-2461
eISSN
1573-4803
DOI
10.1023/A:1004718503991
Publisher site
See Article on Publisher Site

Abstract

The detail microstructures of sintered natural magnesite with addition of titania, zirconia and ilmenite mineralisers were studied using scanning electron microscopy (SEM) with special emphasis on energy dispersive X-ray analyses (EDXA). The study was directed towards the determination of secondary phase composition in sintered magnesite with different mineraliser addition. In order to evaluate the secondary phases with addition of transition metal oxides, keeping titania (TiO2) as a reference mineraliser, a natural analog of titania containing iron i.e., Ilmenite (Fe2O3 · TiO2) and pure Zirconia (ZrO2) were added to magnesite which was then sintered up to 1700 °C. The relative behaviour of these pure and mixed oxide mineralisers during the sintering of magnesite has been evaluated with respect to their microstructure and secondary phase composition. The present paper showed that titania addition to natural magnesites resulted in the formation of calcium titanate in the secondary phase upon sintering. Zirconia, on the other hand, did not show any reaction product in the secondary phase. The addition of titania in the form of mixed oxide, ilmenite, also gave rise to calcium titanate formation, providing a similar microstructure, specially with reference to spatial distribution of phases in the secondary phase.

Journal

Journal of Materials Science – Springer Journals

Published: Oct 1, 2004

There are no references for this article.