COMPACTION OF LITHIUM-SILICATE CERAMICS USING SPARK PLASMA SINTERING
This paper deals with the compaction of ceramics based on lithium-silicate by spark plasma sintering (SPS). The initial powder was prepared by calcination in a resistance furnace at a temperature of 1300 °C with the ratio of Li/Si = 1. Compacting by SPS was carried out at temperatures of 800 - 1000...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
University of Chemistry and Technology, Prague
2016-12-01
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| Series: | Ceramics-Silikáty |
| Subjects: | |
| Online Access: |
http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=789
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| Summary: | This paper deals with the compaction of ceramics based on lithium-silicate by spark plasma sintering (SPS). The initial powder was prepared by calcination in a resistance furnace at a temperature of 1300 °C with the ratio of Li/Si = 1. Compacting by SPS was carried out at temperatures of 800 - 1000 °C with a maximum pressure of 80 MPa. Samples with open porosity of less than 1 % were prepared at the temperature of 1000 °C. According to the quantitative Rietveld refinement of x-ray diffraction data, the dominant phases in all samples were Li₂Si₂O₅ and Li₂SiO₃, together representing over 80 wt. % of the sintered material. |
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| ISSN: | 0862-5468 1804-5847 |