Speaker
Description
Abstract
Calcium silicates have shown great potential in various fields due to the unique properties such as lightweight, low thermal conductivity, excellent bioactivity. Calcium-silicates may be applied in different areas as ceramic, glass, food, electrical, building industry and dentistry. The bioactivity characteristic promotes them as one of the most investigated candidates for bioapplications as in bone repairing, tissue engineering and dental restoration. These applications are accompanied by the formation of hydroxyl carbonate apatite (HCA) on the surface upon implantation when it is connected to biological fluids. The conventional starting materials used in synthesizing calcium silicates are calcium oxide and silica, usually, the commercials products are being used. In our research we investigated alternative sources for starting materials as seashells, musselshells, eggshells, rice husk as sources of CaO and SiO2 to produce calcium silicate powders. In our work, calcium silicate was successfully prepared using eco-friendly natural sources such as chicken eggshells. In order to extract the calcium oxide (CaO) heat treatments in air at 900 °C for 7-10 hours, and silica (SiO) has been prepared by ball milling starting from silica gel by intensive ball milling for 3 hours in dry conditions. Different CaO/SiO have been produced, the composition-structure-property relationships were determined by extensive analytical tools.
| Speaker Country | Hungary |
|---|