Abstract The RGO-Y 2 O 3 and : Cr 3+ (5 mol %) nanocomposite (NC) synthesized by hydrothermal technique. structure morphology of the NCs were characterized X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission (TEM). Y :Cr displays spherical-shaped particles. Conversely, surface RGO a wrinkly texture connecting with existence flexible ultrathin graphene sheets. photoluminesc...

Mode-locking is an ultra-short pulse laser generation technique. The range of duration may vary from picoseconds to femtoseconds. Yttrium Oxide (Y2O3) based saturable absorber (SA) was appropriately revealed in the mode-locked method within 1.55-micron regime. Y2O3 perfect for strength, melting point, and chemical stability can be used as a laminated insulator due its properties. Moreover, also...

The synthesis of nanosized phosphors by using the non-thermal plasma-driven method is presented. The method allows to control the average grain size of nanocrystals. The synthesis of Eu3+-doped Y2O3 nanocrystalline phosphors at water solution of nitrates is described. The average sizes of nanocrystals were controlled by sintering temperature. Their structure, morphology, and luminescent propert...

The efficiency of new artificial pinning centres have been investigated in NbTi using the oxide dispersion strengthening (ODS) concept more typically applied to steels and Ni-superalloys. alloys containing a nanoscale Y2Ti2O7 particles successfully manufactured through powder metallurgy route by mechanical alloying Nb, Ti Y2O3 nanopowders high energy ball milling subsequent consolidation anneal...

Si2N2O is considered as a new great potential structural/functional candidate in place of Si3N4. The amorphous Si3N4 nanopowder was incorporated into silica sol by adding of MgO and Y2O3 as sintering aid. Synthesized powders were heated by spark plasma sintering at a heating rate of 100 oC/min yielded fully dense compacts at 1550 and 1750 oC for 40 min. The phase formation of samples was charac...

Refractory Y-α-SiAlON with elongated grain morphology was obtained by utilizing La2O3 as a densification aid, which resulted in excellent room-temperature and high-temperature strength. Room-temperature strength of 1000 MPa was achieved when La2O3 was augmented by adding Y2O3 or removing AlN. With only La2O3, a temperature-independent strength of 800–950 MPa was maintained up to 1100°C, then gr...

The current work aims to investigate the mechanical properties of rare oxide reinforced Mg alloy based MMCs. Magnesium matrix considered in study is AZ91D alloy, whereas earth oxides were CeO2 and Y2O3. Y2O3 particulate reinforcement percentage was varied from 1 3% steps 1% its influence on Stir casting route adopted fabricate sample for study. Microstructure analysis illustrated uniform distri...

A mathematical approach is presented for the calculation of the major and trace element fractionation that is caused by growth of zoned garnet in metamorphic rocks. This approach is based on textural and compositional parameters directly obtained from natural examples. It takes into account the mode and composition of all unzoned minerals, as well as the mode, crystal size distribution and zona...

Conventional and new sintering mechanisms have been porous compacts is well-known in the ceramic literature. However, several reports have been presented recently that investigated using fine powders of CeO2 and Y2O3 of excellent sinterability. We have verified the validity of Herring’s show that particle/grain size can remain essentially constant up to a density of 92%, and such a resistance t...

The fluorination of Yttria (Y2O3) coatings in the inner chamber wall a plasma-etching equipment causes process drift. In this paper, we investigate relationship between microstructure and fluoride layer Y2O3 prepared by aerosol deposition (AD) method compared with atmospheric plasma spraying (APS) ion plating (IP). corrosion AD-coating, which has highly dense without any pores, proceeded homoge...