Preparation and properties of CaO-Al2O3-SiO2 glass-ceramics by sintered frits particle from mining wastes
The paper reports on some experimental results obtained from the production of glass-ceramics containing gold tailings powder (GTP). Frits particle sintered technology was used to prepare glass ceramic products. SiO2, CaO, ZnO, BaO and B2O3 were selected to adjust the composition of the gla...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
International Institute for the Science of Sintering, Beograd
2014-01-01
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| Series: | Science of Sintering |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0350-820X/2014/0350-820X1403353H.pdf |
| Summary: | The paper reports on some experimental results obtained from the production
of glass-ceramics containing gold tailings powder (GTP). Frits particle
sintered technology was used to prepare glass ceramic products. SiO2, CaO,
ZnO, BaO and B2O3 were selected to adjust the composition of the glass. Based
on the results of differential thermal analysis (DTA), the nucleation and
crystallization temperature of parent glass samples with different schedule
were identified, respectively. X-ray diffraction (XRD) analysis of the
produced glass-ceramics materials revealed that the main crystalline phase
was β-wollastonite. With the increasing of CaO content, the intensity of
crystal diffractive peaks also increases. The formation of β-wollastonite
crystal could be accelerated by the increasing of CaO. The glass-ceramics
with fine microstructure showed better physical, mechanical properties and
chemical resistance. Overall results indicated that it was a feasible attempt
to produce glass-ceramics for building and decorative materials from waste
materials. The amount of GTP used in the glass batches was more than 65 wt%
of the whole raw. |
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| ISSN: | 0350-820X 1820-7413 |