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Title: Effect of excess mgo mole ratio in a stoichiometric cordierite (2MgO·2Al2O3·5SiO 2) composition on the phase transformation and crystallization behavior of magnesium aluminum silicate phases
Authors: Banjuraizah, Johar
Hasmaliza, Mohamad
Zainal Ariffin, Ahmad
Keywords: Crystallization temperature;Crystallization behavior;Differential thermal analyzers;Forsterites;Glass crystallization;Magnesium aluminum silicate;X-ray diffraction (XRD)
Issue Date: May-2011
Publisher: The American Ceramic Society
Citation: International Journal of Applied Ceramic Technology , vol. 8(3), 2011, pages 637-645
Abstract: The effect of excess MgO, 2.0-4.0 mol ratios on the crystallization behavior and purity of Iμ-cordierite was investigated using X-ray diffraction (XRD), differential thermal analyzer, and TGA. Quantitative XRD, the Rietveld technique, was carried out using the HighScore Plus software. The glass crystallization process route was used with talc and kaolin as the main raw materials and compensated with MgO, Al2O3, and SiO 2 accordingly. The crystallization temperature of the glasses decreased as a function of the MgO mole ratio. Less than 2.8 mol MgO increased the formation of α-cordierite up to 94 wt%. However, above 2.8 mol ratio, the forsterite phase started to appear, together with mullite, μ-cordierite, and spinel.
Description: Link at publisher's homepage at http://onlinelibrary.wiley.com/
URI: http://onlinelibrary.wiley.com/doi/10.1111/j.1744-7402.2010.02486.x/abstract;jsessionid=4993F2A42A5DBEFF54E20F88A88600FE.d03t04
ISSN: 1546-542X
Appears in Collections:Banjuraizah Johar, Dr.
School of Materials Engineering (Articles)

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