Facile synthesis and structural insight of nanostructure akermanite powder
| Autor: | Daniel J. Hayes, Caleb A. Zolko, Fariborz Tavangarian, Anoosha Forghani, Abbas Fahami |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Scanning electron microscope chemistry.chemical_element 02 engineering and technology engineering.material 01 natural sciences Wollastonite chemistry.chemical_compound Åkermanite Larnite 0103 physical sciences Materials Chemistry Thermal analysis 010302 applied physics Magnesium Process Chemistry and Technology 021001 nanoscience & nanotechnology Nanocrystalline material Surfaces Coatings and Films Electronic Optical and Magnetic Materials Calcium carbonate chemistry Chemical engineering Ceramics and Composites engineering 0210 nano-technology |
| Zdroj: | Ceramics International. 45:7871-7877 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2019.01.097 |
| Popis: | Pure nanocrystalline akermanite powder was synthesized using calcium carbonate, magnesium carbonate, and silicate as the base materials. Base powders were mechanically activated and then heat treated at various temperatures. The produced powders were evaluated by simultaneous thermal analysis (STA), x-ray diffraction (XRD), and scanning electron microscopy (SEM) characterization techniques. The results showed that pure nanocrystalline akermanite was synthesized from powder mechanically activated for 50 h with subsequent annealing at 900 °C for 1 h. Nanostructured akermanite had a crystalline size of 67 nm. The formation mechanism of akermanite was scrutinized. It was found that akermanite forms through the formation of several transition compounds such as enstatite, wollastonite, larnite, and merwinite. |
| Databáze: | OpenAIRE |
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