| Autor: |
Ponsot, I., Detsch, R., Boccaccini, A. R., Bernardo, E. |
| Zdroj: |
Advances in Applied Ceramics; September 2015, Vol. 114 Issue: Supplement 1 pS17-S25, 9p |
| Abstrakt: |
Glass-ceramics based on iron rich wastes were produced by direct sintering and by following an innovative approach, combining direct sintering and sinter-crystallisation processes. According to the second method, a layered tile was manufactured by single firing at 900°C using a selected combination of wastes for both the porous body and the dense coating layer. The coating layer (‘glaze’) results from the sinter-crystallisation of a waste derived glass mixed with zircon and recycled borosilicate glass. The glaze sealed the porosity of the body and enhanced both mechanical properties and chemical stability. The results show a near to zero water absorption rate, despite a low geometric density (∼2 g cm− 3), accompanied by a Young's modulus of ∼40 GPa and a bending strength of ∼30 MPa. The chemical stability of the glass-ceramics thus developed was assessed by the application of a toxicity control leaching procedure. Furthermore, cell culture tests were carried out to evaluate the potential cytotoxicity of the materials. |
| Databáze: |
Supplemental Index |
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