Volume 19, Issue 3 (Journal of Iranian Ceramic Society 2023)                   Jicers 2023, 19(3): 70-78 | Back to browse issues page

‎ 20.1001.1.17353351.1402.19.0.11.4

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Ghayebloo M, Alizadeh P. Investigation of the manufacture of lithium silicate glass ceramic containing zirconium oxide (ZLS) by pressureless sintering method and its physical, microstructural and hardness properties. Jicers 2023; 19 (3) :70-78
URL: http://jicers.ir/article-1-506-en.html
Investigation of the manufacture of lithium silicate glass ceramic containing zirconium oxide (ZLS) by pressureless sintering method and its physical, microstructural and hardness properties
Masomeh Ghayebloo * , Parvin Alizadeh
, m.ghayebloo@ubonab.ac.ir
Abstract:   (434 Views)
The purpose of this study was to investigate the effect of sintering temperature on the physical and microstructural properties and hardness of lithium silicate glass ceramic containing ZrO2 (ZLS) fabricated by pressureless sintering method. To achieve the best microstructural and physical properties, different sintering temperatures were applied. Field Emission Scanning Electron Microscope (FESEM) and X-Ray Diffraction (XRD) were used to investigate the microstructure and phase analyzes. Micro Vickers hardness, bulk density, water absorption and apparent porosity of the samples were measured. The results showed that the glass ceramic obtained at the sintering temperature of 900 °C has the highest Vickers microhardness (7.22 ± 0.67 GPa) and bulk density (2.53 ± 0.03 g/cm3). With the further increase of the sintering temperature, despite the formation of prismatic zircon phase, the hardness (5.72 ± 0.28 GPa) and the bulk density (2.34 ± 0.03 g/cm3) decreased.
Keywords: Pressureless Sintering, Dental Materials, ZLS, ZrO2-bearing Lithium Silicate (ZLS), Glass-Ceramics
Full-Text [PDF 1919 kb]   (153 Downloads)    
Type of Study: Research | Subject: Glass- Glass-Ceramics
Received: 2024/09/23 | Accepted: 2024/10/21
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