Publication: Influence of heat treatment temperature on the properties of the lithium disilicate-fluorcanasite glass-ceramics
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Issued Date
2021
Resource Type
Language
eng
File Type
application/pdf
ISSN
1546542X
Other identifier(s)
2-s2.0-85118567642
Rights Holder(s)
Scopus
Bibliographic Citation
International Journal of Applied Ceramic Technology. Vol , No. (2021)
Suggested Citation
Kraipok A., Intawin P., Bintachitt P., Leenakul W., Khamman O., Eitssayeam S., Tunkasiri T., Pengpat K. Influence of heat treatment temperature on the properties of the lithium disilicate-fluorcanasite glass-ceramics. International Journal of Applied Ceramic Technology. Vol , No. (2021). doi:10.1111/ijac.13945 Retrieved from: https://hdl.handle.net/20.500.14740/7960
Abstract
This study aims to investigate the influence of heat treatment temperatures on the mechanical properties and chemical solubility (CS) of lithium disilicate-fluorcanasite glass-ceramics and to develop new dental materials. The glasses and glass-ceramics were prepared using CaF2-SiO2-CaO-K2O-Na2O-Li2O-Al2O3-P2O5-based glass system using a conventional melt quenching method followed by a two-stage crystallization process. This two-stage method involves two heating temperature steps: first at a constant temperature (TS1) of 600°C and second step at varying temperatures (TS2) of 650, 700, 750, and 800°C. The crystallization behavior, phase formation, microstructure, translucency characteristic, density, hardness, fracture strength, and CS were investigated. It was found that the lithium disilicate crystal acted as the main crystalline phase, and the crystalline phase of fluorcanasite occurred at the heat treatment temperatures of 750 and 800°C. In addition, it was found that density, hardness, fracture strength, and CS increased while the translucency values decreased with increasing heat treatment temperatures. Furthermore, the CS increased dramatically when the fluorcanasite phases occurred in the glass-ceramic samples. The maximum density values, Vickers hardness, fracture toughness, and flexural strength are 2.56 g/cm3, 6.73 GPa, 3.38 MPa.m1/2, and 259 MPa, respectively. These results may offer a possibility to design a new material for dental applications based on lithium disilicate-fluorcanasite glass-ceramics. © 2021 The American Ceramic Society
Subject(s)
Alumina
Aluminum oxide
Calcium fluoride
Crystallization
Dental materials
Durability
Fluorspar
Fracture toughness
Heat treatment
Lithium compounds
Silica
Sodium compounds
Vickers hardness
Chemical durability
Chemical solubility
Crystalline phasis
Dental replacement
Fluorcanasite
Glass-ceramics
Heat treatment temperature
Lithium disilicate
Lithium disilicate-fluorcanasite
Property
Glass ceramics
Aluminum oxide
Calcium fluoride
Crystallization
Dental materials
Durability
Fluorspar
Fracture toughness
Heat treatment
Lithium compounds
Silica
Sodium compounds
Vickers hardness
Chemical durability
Chemical solubility
Crystalline phasis
Dental replacement
Fluorcanasite
Glass-ceramics
Heat treatment temperature
Lithium disilicate
Lithium disilicate-fluorcanasite
Property
Glass ceramics