Effect of Soaking Time on Crystal Structure of Lithium Aluminosilicate Glass Ceramic
| Autor: | Hasmaliza Mohamed, Tuti Katrina Abdullah, Husniyah Aliyah Lutpi |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Mechanical Engineering chemistry.chemical_element 02 engineering and technology Crystal structure 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences chemistry Chemical engineering Mechanics of Materials Aluminosilicate visual_art 0103 physical sciences visual_art.visual_art_medium General Materials Science Lithium Ceramic 0210 nano-technology |
| Zdroj: | Materials Science Forum. 1010:216-221 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.1010.216 |
| Popis: | Formation of crystal structures in glass ceramic is influenced by the heat treatment of parent glass. Most of research often studied on the important of sintering temperature and its soaking time. In this study, the effect of soaking time (3, 4 and 5 hours) during melting process (1550 °C) on crystal structures of Lithium Aluminosilicate (LAS) glass ceramic was conducted. All samples were then sintered at 900 °C for 30 minutes. The amorphous phase was identified prior to sintering process and transformed into crystalline phase for all samples after sintering process in XRD analysis. Major crystalline phase of high quartz solid solution and β-spodumene (LiAlSi2O6) were observed and higher intensity peak is found as the soaking time is longer. The microstructure of the sintered samples was observed under SEM and the particles were displayed an evidently growth of the grain as function to the soaking time. The functional groups of Si-O-Si and Si-O(Si, Al) bonding were appeared in fourier-transform infrared spectroscopy (FTIR) analysis corresponding to the silicates and aluminosilicate bonding. The results achieved present 5 hours soaking time during melting process was the optimum soaking time for melting LAS glass at 1550 °C. |
| Databáze: | OpenAIRE |
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