Surface and volume crystallization in fluorrichterite based glasses
F-richterite based glasses in the SiO2-CaO-MgO-Na2O-F system were investigated by X-ray diffraction, differential scanning calorimetry and field emission scanning electron microscopy to ascertain the influence of fluorine content on preferential crystallization mechanism and on the spatial position...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/219614 |
| Acceso en línea: | http://hdl.handle.net/10261/219614 |
| Access Level: | acceso abierto |
| Palabra clave: | F-richterite Microstructure DSC bulk crystallization Crystallization mechanism surface crystallization |
| Sumario: | F-richterite based glasses in the SiO2-CaO-MgO-Na2O-F system were investigated by X-ray diffraction, differential scanning calorimetry and field emission scanning electron microscopy to ascertain the influence of fluorine content on preferential crystallization mechanism and on the spatial position of crystals developed in the initial steps of glass devitrification. The results highlight that both surface and volume mechanisms occur in the crystallization of fluorrichterite glasses. However, these glasses preferentially devitrify by a surface crystallization mechanism, although an increase of fluorine content leads to a modification in the location of the first developed crystals. |
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