Synthesis and characterization of monophase CaO-TiO2-SiO2 (sphene) based glass-ceramics
| Autor: | Branko Matović, Anna V. Gubarevich, Milena Marinović-Cincović, Katsumi Yoshida, Bratislav Todorović, M. Gilić, Jelena Maletaskic |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
020502 materials Metals and Alloys tg-dta 02 engineering and technology lcsh:Chemical technology XRPD TG-DTA Condensed Matter Physics Sphene Characterization (materials science) 0205 materials engineering Chemical engineering sphene glass-ceramics visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium lcsh:TP1-1185 Ceramic mechanochemistry xrpd Glass-ceramics Mechanochemistry |
| Zdroj: | Science of Sintering Science of Sintering, Vol 52, Iss 1, Pp 41-52 (2020) |
| ISSN: | 1820-7413 0350-820X |
| Popis: | Sphene based glass-ceramics (CaTiSiO5), an excellent candidate for a host lattice of ceramic materials and for nuclear waste immobilization, has been prepared from a powder mixture of CaCO3, TiO2 and SiO2 using vibro-milling for homogenization. Starting powders were melted at 1400°C for 2 h, cooled to room temperature, grounded again, then crystallized by thermal treatment yielding a sphene glass-ceramic. The evolution of the phase composition during thermal treatment was investigated by X-ray powder diffraction (XRPD), FT-IR, Raman and thermal analyses (TG-DTA). Pure synthetic single phase sphene was formed at 800°C for 4 h, even it is very hard to obtain monophase powder at such low temperature. Powder morphology was analyzed by scanning electron microscopy (SEM). [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. 45012] |
| Databáze: | OpenAIRE |
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