Eu(3+)-doped transparent glass ceramics containing In(2)O(3) nano-crystals were prepared by melt quenching and subsequent heating. X-ray diffraction analysis, transmission electron microscope observation, and photoluminescence excitation spectra demonstrated that In(2)O(3) nano-particles sized 3-6 nm homogenously distributed among the glass matrix. Under excitation of these nano-particles, Eu(3...

The presence of glass-like contaminants inside waste glass products, usually resulting from both industrial and differentiated urban waste collection, has greatly increased in recent years, due to the introduction to the market of a large amount of goods manufactured from ceramic glass. The presence of contaminants in the glass recycling streams reduces product quality and increases production ...

Abstract Transparent sodium phosphate glass–ceramics system according to the composition (55- x ) P 2 O 5 .(30 + )ZnO.15Na where = 0, 2.5, 5, 7.5, and 10 was prepared with melt quenching technique. Different techniques such as XRD infrared spectroscopy (FTIR) were used investigate structure of studied glass samples nano composite. revealed formation crystalline phase. The phase Na Zn (P 7 ZnP ....

Transparent oxyfluoride glass-ceramic (OxGCs) coatings with composition 1.2Nd3+ 80SiO2- 20LaF3 were prepared following a sol-gel route labelled “pre-crystallized nanoparticles route”. OxGCs are transparent materials composed by one or more fluoride nanocrystals in glass matrix. have been encouraging results powders and bulk glass-ceramics but not coatings. In the present work, aqueous suspensio...

In this paper the MBS (Magnesium borosilicate) based glass-ceramic have been prepared and characterised to find its suitability in Low temperature cofired ceramics (LTCC) technology. The glass-ceramics were prepared by using conventional solid state route. The experimental study was conducted on the MBS glass-ceramic containing MAS (Magnesium Alumino-Silicate) based glass-ceramic as an additive...

purpose: the aim of this study was to evaluate the effect of two gingival finishing lines (90° shoulder and deep chamfer) on the marginal fitness of two types of full anatomic all-ceramic crowns; zirconia crowns (zikonzhan) and glass ceramic crowns (ips e-max cad) milled with cad/cam system. materials and methods: two dentoform teeth of left maxillary first molar were prepared with chamfer fini...

In this paper synthesis and characterization of a bioactive calcium phosphate glass-ceramic is presented, synthesized using a facile method. The glass-ceramic samples are synthesized with heat treating the parent glass at appropriate temperatures, where different calcium phosphate crystalline phases are grown in the parent glass samples during the heat treatment. The amounts of elements a...

We report on a comparative study of transparent Fe:MgAl2O4 (spinel) ceramics and nanophase Fe:MgAl2O4-based glass-ceramics. The 0.1 mol% was synthesized by hot pressing (at 1500 °C/50 MPa) powders obtained the sol-gel method using LiF as sintering aid. ceramic is single-phase material (cubic structure, sp. gr. Fd3‾m, = 8.083 Å) with mean grain size ~50 μm. exhibits broadband transparency 0.2–6....

It is known that the optical transparency of an oxide glass decreases with increase in size and fraction crystals during heat-treatment. Here, authors report opposite scenario, where a translucent Er3+−Yb3+ doped oxyfluoride precursor glass-ceramic (P-GC) becomes transparent increasing crystal crystallinity. Specifically, heat-treated P-GC samples, observe growth existing Ba2LaF7 particularly f...