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http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1736| SYNTHESIS AND CHARACTERIZATION OF ALPHA ALUMINA PLATELETS AND ACICULAR MULLITE IN MgO-Al2O3-SiO2 SYSTEM | |
| MANUELA ALEJANDRA ZALAPA GARIBAY | |
| Acceso Abierto | |
| Sin Derechos Reservados | |
| Mullite | |
| The search for new refractory materials, which are more reliable and less expensive, has focused research on materials like alumina and mullite, which offers a very high refractoriness. In the present work a mullite and alpha-Alumina platelets was synthesized using chemical synthesis with a relationship of raw materials 50SiO2-30Al2O3-20MgO. Alpha-Alumina platelets and mullite was obtained with reduced processing time and cost than contrasting with conventional methods. The composition, thermal analysis and microstructural evolution were followed by X-ray diffraction, differential thermal analysis and SEM microscopy. A chemical synthesis method based on the Pechini process was successfully used to synthesize alpha-alumina and acicular mullite. All synthesized precursor powders were amorphous with submicron particle size. It was found the effect of MgO in the formation of α-alumina and mullite at low temperature, α-alumina and mullite were detected after heating at 800°C and the dissolution α-alumina for the formation of secondary Mullite is around 1000°C. Finally at 1400°C is only observed well crystallized type III of secondary Mullite. | |
| 2016 | |
| Memoria de congreso | |
| Inglés | |
| OTRAS | |
| Versión revisada | |
| submittedVersion - Versión revisada | |
| Aparece en las colecciones: | Artículos de Congresos |
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| Artículo en extenso Mane Cancún 2016.pdf | 1.3 MB | Adobe PDF | Visualizar/Abrir |