Various procedures of mixing starting powders for hot-pressing α-SiAlON ceramics were studied. They included different milling methods (attrition milling, ball milling, and sonication), liquid medium (water, isopropyl alcohol, and pyridine), and atmospheres (ambient air and nitrogen). These mixing procedures resulted in markedly different densification behavior and fired ceramics. As the powder...

The structure of ZnO based transparent glass-ceramics prepared from glasses by controlled crystallization and optical ceramics uniaxial recrystallization hot pressing doped with rare-earth (RE) transition metal (TM) ions are compared. Regions structural inhomogeneity formed in during their casting, cooling annealing. Their composition depends on the type concentration TM RE determines differenc...

We report the results of spatial resolution and conversion efficiency measurements on new fluorochlorozirconate and lithium-borate glass-ceramics that are being researched for x-ray and thermal neutron imaging applications. The sensitivity of the fluorochlorozirconate glass-ceramics containing BaCl2:Eu nano-crystallites is up to 80 % of that found in BaFBr(1000ppm Eu), which is the material use...

We have developed a model that describes thermally induced birefringence in polycrystalline ceramics that are exposed to a magnetic field. Conditions under which traditional compensation techniques (for glass and single crystals) can be effective for ceramics have been found. It is shown that a ceramic is almost equivalent to a [111]-oriented crystal if the ratio of the rod length to the grain ...

Piezoelectric materials have coupled mechanical and electrical energies long been used in devices for actuators, sensors, energy harvesters, frequency filters, various additional applications. Piezoelectricity requires a non-centrosymmetric crystal structure is therefore confined to that possess periodic crystalline structure. Due the non-crystalline nature of glass, piezoelectricity fundamenta...

The clinical effect of feldspar ceramics and lithium disilicate reinforced glass was studied. 57 affected teeth with complete root canal treatment computer aided design/computer manufacturing (CAD/CAM) endocrown restoration were reviewed 24-36 months aftercompletion the restoration. These dimensions including anatomical morphology, proximal contact , color matching, edge integrity, coloring, se...

Glass-ceramics based on the Eu/Dy-doped Sr2MgSi2O7 phosphor have been obtained from sintering and crystallization of glass powders. Electric gas furnaces were employed for melting. The doped parent glasses show red emission under excitation UV light whereas corresponding glass-ceramics blue emission. microstructure crystals responsible observed by scanning electron microscopy-cathodoluminescenc...

Aim: This review investigated the effect of applying an adhesive after surface treatment glass-ceramics on bonding, mechanical or clinical behavior. Methods: Studies comparing adhesive, behavior glass-ceramics, with without application treatment, were included. Searches performed in PubMed, Scopus, and Web Sciences databases (January 2022), resulting 15 included studies. Results: Regarding eval...

Don Stookey, the father of glass–ceramics, was a pioneer in inducing and understanding internal nucleation phenomena in glass. His early work on dense opal glasses and photosensitive precipitation of gold and silver in glass led to an amazing series of inventions: Fotalite®, a photosensitive opal, chemically machined Fotoform® and Fotoceram®, and TiO2-nucleated PyroceramTM products including mi...

1Jagiellonian University, Institute of Zoology, Department of Cell Biology and Imaging, Poland; 2University of Science and Technology, Faculty of Material Science and Ceramics, Department of Glass Technology and Amorphous Coatings, Poland; 3Jagiellonian University Medical School, Institute of Physiotherapy, The Clinics of Orthopaedics and Traumatology of the Musculoskeletal System, Poland; 4Uni...