Owing to its excellent mechanical properties and aesthetic tooth-like appearance, lithium disilicate glass-ceramic is more attractive as a crown for dental restorations. In this study, lithium disilicate glass-ceramics were prepared from SiO-LiO-KO-PO-CeO glass systems with various AlO contents. The mixed glass was then heat-treated at 600 °C and 800 °C for 2 h to form glass-ceramic samples.
View Article and Find Full Text PDFThe purpose of this research is to discuss the preparation, characterization, and characteristics of lithium disilicate-fluorcanasite (LF) glass-ceramics in order to develop new dental glass-ceramics. A typical melt quenching method was used to produce the lithium disilicate (LD) and fluorcanasite (FC) types of glass. Following that, the LD and FC glass frits were combined and remelted in the following LD:FC ratios of 100:0, 0:100, 75:25, and 50:50 wt%, represented by S1, S2, S3, and S4, respectively.
View Article and Find Full Text PDFJ Nanosci Nanotechnol
January 2020
In this work, bioglass ceramics have been successfully fabricated by the modified incorporation method. In this method, solid-state reaction and conventional glass-melting techniques were employed to separately prepare barium hexaferrite (BaFeO: BF) and 45S5 bioactive glass powders. The mixture of BF and 45S5 glass powder was then re-melted at 1300 °C to form base glass.
View Article and Find Full Text PDF45S5 bioactive glass is a highly bioactive substance that has the ability to promote stem cell differentiation into osteoblasts--the cells that create bone matrix. The aim of this work is to analyze physical and mechanical properties of 45S5 bioactive glass fabricated by using rice husk ash as its silica source. The 45S5 bioactive glass was prepared by melting the batch at 1300 °C for 3h.
View Article and Find Full Text PDFThe incorporation method was employed to produce ferroelectric glass ceramics from the K2O-Nb2O5-B2O3 glass system. The nanocrystalline potassium niobate (KNbO3) was first prepared using a simple mixed oxide method, where the B2O3 was initially mixed and then melted to form glass. The successfully produced optically transparent glass was then subjected to a heat treatment schedule for further crystallization at temperatures ranging from 500 to 650 degrees C, which resulted in the precipitation of the KNbO3 phase, together with the K3B2Nb3O12 phase.
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