| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Nanotechnology for Energy, Environment, Electronics, Healthcare and Industry
|
| Presentation Title |
Ceramic Pigments of the Garnet Type Synthesized by Utilization of Rice Husk Ash |
| Author(s) |
Irena Georgieva Markovska, Tsvetan Dimitrov, Fila Yovkova |
| On-Site Speaker (Planned) |
Irena Georgieva Markovska |
| Abstract Scope |
The main task of the present work was to synthesize ceramic pigments of the garnet type by utilizing a widespread bio-waste - rice husk. The synthesis of pigments was carried out by a solid state reaction using the following initial materials: CaO, Cr2O3, Fe2O3. White ash from oxidized at 650°C rice husk was used as a source of SiO2. Compositions with pure SiO2 obtained from SiO2.nH2O were also synthesized for comparison. Ceramic pigments were synthesized at 1000 °C and 1100 °C. The properties of the garnet pigments were characterized mainly by X-ray diffraction, hot stage microscopy, FT-IR Spectroscopy, DTA, SEM. The color of the pigments is determined by using the Lovibond Tintometer RT 100 Color - CIELab color measurement. The optimal synthesis parameters were determined. It was established that the pigments synthesized could successfully be used in glazes for wall tiles. |