Publication: Mechanical properties and microstructure of Li2O-SiO2-P2O5-Al2O3-K2O-CaO glass-ceramics
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Issued Date
2018
Resource Type
File Type
application/pdf
ISSN
10139826
Other identifier(s)
2-s2.0-85046097596
Rights Holder(s)
Scopus
Bibliographic Citation
Key Engineering Materials. Vol 766 KEM, (2018), p.164-169
Suggested Citation
Kamnoy M., Intatha U., Munpakdee A., Eitssayeam S., Tunkasiri T. Mechanical properties and microstructure of Li2O-SiO2-P2O5-Al2O3-K2O-CaO glass-ceramics. Key Engineering Materials. Vol 766 KEM, (2018), p.164-169. doi:10.4028/www.scientific.net/KEM.766.164 Retrieved from: https://hdl.handle.net/20.500.14740/3877
Author(s)
Abstract
In this study, the mechanical properties and microstructure of lithium disilicate glass–ceramics in the Li2O-SiO2-P2O5-Al2O3-K2O-CaO glass system were investigated. The glass-ceramics were prepared from the glass melt by casting into mold on hotplate. After that the glass was heat treated at 650-800 °C for 2 h. The heat treatment temperatures were determined from the differential thermal analysis (DTA). The phase formation and microstructure of the glass–ceramics were characterized by X-ray diffraction (XRD) technique and the scanning electron microscopy (SEM). Moreover, the mechanical properties was investigated by Vickers hardness testing. The results indicated that the samples confirmed the occurrence of Li2SiO3, Li2Si2O5, Li3PO4, and LiAlSi2O6 phases in the prepared glass ceramics. The optimum heat treatment temperature results in the physical properties with a high Vickers hardness values in the range of 5.4-5.8 GPa. © 2018 Trans Tech Publications, Switzerland.
Subject(s)
Alumina
Aluminum oxide
Differential thermal analysis
Glass ceramics
Glass manufacture
Heat treatment
Microstructure
Scanning electron microscopy
Silica
Vickers hardness
Vickers hardness testing
Differential thermal analyses (DTA)
Glass melts
Glass systems
Heat treatment temperature
Lithium disilicate
Lithium disilicate glass
Phase formations
Properties and microstructures
Lithium compounds
Aluminum oxide
Differential thermal analysis
Glass ceramics
Glass manufacture
Heat treatment
Microstructure
Scanning electron microscopy
Silica
Vickers hardness
Vickers hardness testing
Differential thermal analyses (DTA)
Glass melts
Glass systems
Heat treatment temperature
Lithium disilicate
Lithium disilicate glass
Phase formations
Properties and microstructures
Lithium compounds