Results 21 to 30 of about 4,365 (205)

Phase diagrams of zirconium dioxide systems with yttrium and scandium oxides

open access: yesКонденсированные среды и межфазные границы, 2023
The literature data on the study of phase equilibria in systems zirconia with yttria and scandia are analysed. Possible schemes of low-temperature phase equilibria in ZrO2-Y2O3 and ZrO2-Sc2O3 systems are presented taking into account the third law of ...
Pavel P. Fedorov, Elena V. Chernova
doaj   +1 more source

Synthesis of Thulium-yttria Nanoparticles with EPR Response

open access: yesBrazilian Journal of Radiation Sciences, 2022
Approaches to form new materials for radiation dosimetry are essential to enhance quality assurance and quality improvement practices based on radiation protection concept.
Silas Santos   +2 more
doaj   +1 more source

Re-Melting Nb–Si-Based Ultrahigh-Temperature Alloys in Ceramic Mold Shells

open access: yesMetals, 2019
In furnaces with different heating elements, Nb−Si based ultrahigh-temperature alloy rods were re-melted in pure yttria mold shells and zirconia face-coat mold shells at 1850 °C for 30 min.
Yin Wang, Xiping Guo
doaj   +1 more source

The Effect of Yttria Content on Microstructure, Strength, and Fracture Behavior of Yttria-Stabilized Zirconia

open access: yesMaterials, 2022
Yttria-stabilized zirconia (YSZ) is well-known as a material with perfect mechanical, thermal, and electrical properties. It is used for manufacturing various high-temperature components for aerospace and energy generation, as well as wear- and corrosion-resistant devices in medicine.
Volodymyr Kulyk   +5 more
openaire   +4 more sources

The effect of Y2O3 addition on thermal shock behavior of magnesium aluminate spinel [PDF]

open access: yesScience of Sintering, 2009
The effect of yttria additive on the thermal shock behavior of magnesium aluminate spinel has been investigated. As a starting material we used spinel (MgAl2O4) obtained by the modified glycine nitrate procedure (MGNP).
Pošarac Milica   +4 more
doaj   +1 more source

A Comparative Study on Luminescence Properties of Y2O3: Pr3+ Nanocrystals Prepared by Different Synthesis Methods

open access: yesNanomaterials, 2020
Pr3+-doped Y2O3 nanocrystals (NCs) have been obtained via five wet-chemistry synthesis methods which were optimized in order to achieve superior optical properties.
Andrea Diego-Rucabado   +7 more
doaj   +1 more source

Microstructure and Phases Analysis for Advanced Plasma Sprayed Zirconia-Ceria-Yttria Thermal Barrier Coating [PDF]

open access: yesEngineering and Technology Journal, 2017
Thoroughly qualitative and quantitative topography, microstructure, splats formation and phases evaluation were made to understand carefully the behavior of plasma sprayed zirconia-ceria-yttria coatings processed under near optimum processing conditions.
M.J. Kadhim, M.H. Hafiz, M.A. Ali bash
doaj   +1 more source

Phase relations in the yttria–neodymia system at 1500 °C [PDF]

open access: yesProcessing and Application of Ceramics, 2017
The phase equilibria in the binary system Nd2O3−Y2O3 at 1500 °C were studied in the overall concentration range by means of X-ray analysis and petrography.
Olga V. Chudinovych   +3 more
doaj   +1 more source

Effects of PVA Polymer Type and Calcination Temperature on Synthesis of Nanocrystalline Yttria Powder by Polymer Solution Route [PDF]

open access: yesArchives of Metallurgy and Materials, 2018
Nano-sized yttria (Y2O3) powders were synthesized by a polymer solution route using polyvinyl alcohol (PVA) as an organic carrier. The PVA polymer affected the dispersion of yttrium ions in precursor sol.
Y.-K. Yang, S.-J. Lee
doaj   +1 more source

Eu, Gd-Codoped Yttria Nanoprobes for Optical and T1-Weighted Magnetic Resonance Imaging

open access: yesNanomaterials, 2017
Nanoprobes with multimodal functionality have attracted significant interest recently because of their potential applications in nanomedicine. This paper reports the successful development of lanthanide-doped Y2O3 nanoprobes for potential applications in
Timur Sh Atabaev   +9 more
doaj   +1 more source

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