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dc.contributor.authorBanjuraizah, Johar
dc.contributor.authorHasmaliza, Mohamad
dc.contributor.authorZainal Arifin, Ahmad
dc.date.accessioned2011-10-24T03:21:08Z
dc.date.available2011-10-24T03:21:08Z
dc.date.issued2011-10-03
dc.identifier.citationMaterials Chemistry and Physics, vol. 129 (3), 2011, pages 910-918en_US
dc.identifier.issn0254-0584
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S0254058411004214
dc.identifier.urihttp://dspace.unimap.edu.my/123456789/14872
dc.descriptionLink to publisher's homepage at http://www.elsevier.comen_US
dc.description.abstractThree non-stoichiometric cordierite with compositions of xMgO-1.5Al2O3-5SiO2 (x = 2.6-3.0 mol) were synthesized using mainly talc and kaolin through the glass route. The densification and crystallization behaviors of these glass powders were investigated using DTA, dilatometer, and XRD. Samples were then heat treated at 900 °C for 2 h and further analyzed using XRD, CTE, FESEM, density and porosity tests, and also dielectric test to further investigate their properties. The 2.8MgO·1.5Al2O3·5SiO2 glass composition fully densified and crystallized into high purity α-cordierite at the heat treatment temperature. It exhibited lower CTE and dielectric constant compared to other composition, making it suitable for high frequency applications. Other formulations which contain multi crystalline phases require much higher temperatures for densification. The CTE value depends on the type of crystalline phase which exist in the sample, while the dielectric constant decreased with increasing MgO amounts in the sample compositions.en_US
dc.language.isoenen_US
dc.publisherElsevier B.V.en_US
dc.subjectGlassesen_US
dc.subjectCrystallizationen_US
dc.subjectPowder diffractionen_US
dc.subjectDielectric propertiesen_US
dc.subjectThermal propertiesen_US
dc.titleSynthesis and characterization of xMgO-1.5Al2O3-5SiO2 (x = 2.6-3.0) system using mainly talc and kaolin through the glass routeen_US
dc.typeArticleen_US
dc.contributor.urlzainal@eng.usm.myen_US


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