Effect of zircon on sintering, composition and microstructure of magnesia powders

• Main Authors: Peng C., Li N., Han B.
• Format: Article
• Language: English
• Published: International Institute for the Science of Sintering, Beograd 2009-01-01
• Series: Science of Sintering
• Subjects: fused magnesia; zircon; sintering; densification
• Online Access: http://www.doiserbia.nb.rs/img/doi/0350-820X/2009/0350-820X0901011P.pdf

The effects of zircon on sintering, composition and microstructure of fused magnesia powders were studied by XRD, SEM and EDAX. With the increase of zircon content up to 6 wt%, the strength of sintered samples increased but the apparent porosity decreased. 6 wt% is an appropriate content of zircon to possess better properties of samples, and in this case the samples have a dense microstructure and lower content of glass phase. The presence of a liquid phase resulting from zircon addition is the main reason to improve sintering of magnesia powders.