Different batches of weathered basalt ranging from 100 to 50 %, in combination with by-pass cement dust, were used prepare the glass compositions. techniques utilized such as differential thermal analysis, X-ray diffraction, density, FTIR, mass attenuation coefficients, appropriate atomic number (Zeff), and effective electron density (Neff), examined for prepared glass-ceramics samples at diffe...

The optimal temperature regime for the synthesis of glass ceramics with YNbO 4 : Tb 3+ crystalline inclusions has been established. Glass were synthesized on basis a sodium borate matrix from oxide precursors. It established that at 950 o C is optimal, since this only one phase formed in and its content maximum. spectra obtained by method local cathodoluminescence, composition was studied X-ray...

In the present study, the effect of the chemical and phase composition on the thermal properties of silicon oxide carbides (SiOC) has been investigated. Dense monolithic SiOC materials with various carbon contents were prepared and characterized with respect to their thermal expansion, as well as thermal conductivity. SiOC glass has been shown to exhibit low thermal expansion (e.g., ca. 3.2 × 1...

In this study, sintered glass-ceramics made up of jarosite (a hazardous industrial waste) have been obtained by sintering high-iron-content glasses. Thermal gravimetry and differential thermal analysis, carried out in different atmospheres, have been utilized to explain the phase formations in the volume and iron oxidation on the surface of the glass particles. Low-angle XRD technique has been ...

The quantity of sewage sludge generated daily by wastewater treatment plants represents a major environmental problem and financial burden for plant operators. Valorization strategies focusing on reusing as raw material are currently developed. Vitrification can help us reduce the volume waste binds components in structure chemically stable glasses glass-ceramics. In this study, vitrification i...

1. Discusses the properties of enamel and dentin and their role in adhesive dental restoration;2. Chapters also examine the wear properties of dental ceramics, glasses and bioactive glass ceramics for tooth repair and replacement;3. Dental composites and antibacterial restorative materials are also considered;4. Provides a concise overview of non-metallic biomaterials for dental clinicians, mat...

The atomic structures of magnesium silicate melts are key to understanding processes related to the evolution of the Earth's mantle and represent precursors to the formation of most igneous rocks. Magnesium silicate compositions also represent a major component of many glass ceramics, and depending on their composition can span the entire fragility range of glass formation. The silica rich enst...

In particular, chalcogenide glasses and glass-ceramics are new materials that exhibit good transparency in infrared region (0.8-12µm). We can overcome the main weakness of these glasses by improving the hardness through controlling crystallization. In this paper, we report results of a study on chalcogenide glasses in the ternary system of As-Se-Ge with nominal composition of Snx (Se...

A theoretical procedure has been developed with the aim of obtaining an accurate and rapid estimation of the degree of crystallisation in jarosite glasses by measuring the densities of the parent glass and, after the thermal treatment, of the glass-ceramic. Compositions were prepared by mixing jarosite waste with granite scraps and glass cullet, yielding three di€erent glass-batchs, melted at 1...