| Fabrication and Characterization of Diopside-based
Glass-Ceramics from Granite Wastes |
Junfeng Kang*, Jinshu Cheng, Xianchun Lou, Peijing Tian and Kai Liu1
pages : 218-224
DOI : 10.1080/0371750X.2015.1077688 |
| Abstract |
| Diopside-based glass-ceramics were obtained by mixing 58.2~61.5 wt% granite wastes with other components.
Based on the CaO-MgO-Al2O3-SiO2 (CMAS) system, the effects of CaO/MgO ratio and heat treatment on crystallization,
microstructure and properties of the glass-ceramics were investigated. Results showed that the crystallization
peak temperature decreased with the replacement of CaO by MgO. Bulk crystallization of CMAS glass-ceramics by
one stage heat treatment was achieved by optimizing the CaO/MgO ratio. The most suitable mass ratio of CaO to
MgO in this work was 1.25, because of higher crystallinity of diopside and its desirable fine grained microstructure.
The mechanical properties of glass-ceramics obtained by one stage heat treatment were a little worse than that of
two stage heat treatment. Considering the simpler manufacturing process and lower energy consumption, one
stage heat treatment was a more promising and economical method for rolling process. |
| Full text : Subscribe to Download Full Text |
| [Go Back] |
|
