COMPACTION OF LITHIUM-SILICATE CERAMICS USING SPARK PLASMA SINTERING

Ceramics-Silikáty

卷:61

Frantisek Lukac¹  BrozekVlastimil¹  ChraskaTomas¹  StehlikovaKveta¹  MusalekRadek¹  Tomas Frantisek Kubatik¹ 

[1] Institute of Plasma Physics CAS, Za Slovankou 1782/3, 182 00 Prague, Czech Republic ;

关键词: Li₂Si₂O₅;    Li₂SiO₃;    Spark plasma sintering (SPS);    Quantitative Rietveld refinement;    X-ray diffraction (XRD);   

DOI  :  10.13168/cs.2016.0058

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown