Preparation and characterization of some multicomponent silicate glasses and their glass–ceramics derivatives for dental applications

• Published in: Ceramics international Vol. 35; no. 3; pp. 1211 - 1218
• Main Authors: ElBatal, Fatma H., Azooz, Moenis A., Hamdy, Yousry M.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.04.2009
• Subjects: B. Electron microscopy; B. Spectroscopy; C. Corrosion; D. Glass ceramics; E. Biomedical applications; D. Glass ceramics; B. Electron microscopy; B. Spectroscopy; C. Corrosion; E. Biomedical applications
• ISSN: 0272-8842; 1873-3956
• DOI: 10.1016/j.ceramint.2008.06.009

The chemical corrosion and UV–vis absorption and infrared absorption spectra of binary and multicomponent lithium silicate glasses and corresponding glass–ceramics were investigated. The chemical durability of the glasses and derived glass–ceramics was found to be excellent to all leaching media. The IR absorption spectra of the glass and glass–ceramic samples reveal absorption bands of characteristic groups mainly due to major silicate network besides the possible sharing of network units due to some involving oxide constituents. X-ray analysis of glass–ceramics indicates the separation of lithium disilicate phase as the main constituent beside other phases according to the specimen chemical constituents. The obvious promising investigated chemical and physical properties are correlated with the presence of multioxides such as Al 2O 3, TiO 2, MgO and ZrO 2. Transmission and reflectivity properties reveal acceptable data. The prepared glass–ceramics are recommended for dental applications.