Results 11 to 20 of about 39,827 (264)

Evaluation of the Yttrium Oxide Effect on Some Mechanical Properties of (Type III) Dental Stone

open access: yesJournal of Techniques, 2023
For many years, gypsum compounds have been used in dentistry. They're used to make casts for various dental laboratory operations. Gypsum products have important characteristics such as "quality, abrasion resistance, compressive strength, hardness ...
Najwah Yousuf Hameed   +2 more
doaj   +1 more source

Surface oxide on thin films of yttrium hydride studied by neutron reflectometry [PDF]

open access: yes, 2012
The applicability of standard methods for compositional analysis is limited for H-containing films. Neutron reflectometry is a powerful, non-destructive method that is especially suitable for these systems due to the large negative scattering length of H.
Cousin, Fabrice   +5 more
core   +2 more sources

Transformation of Oxide Inclusions in Stainless Steel Containing Yttrium during Isothermal Heating at 1473 K

open access: yesMetals, 2019
To provide fundamental information on the control of rare earth inclusions in solid steel, two 18 mass% Cr-8 mass% Ni stainless steels with different yttrium additions were prepared using an electric resistance furnace and the evolution of yttrium-based ...
Xueliang Zhang   +3 more
doaj   +1 more source

Synthesis, structure and superconducting properties of laminated thin film composites of YBа2 Cu3 O7–d /Y2 O3 as components of 2G HTS wires

open access: yesКонденсированные среды и межфазные границы, 2021
2G HTS wires are capable of transferring huge amounts of electrical energy without loss. An increase in the current-carrying capacity in these materials is possible due to an increase in the thickness of the superconducting layer; however, there is a ...
Alexander E. Shchukin   +3 more
doaj   +1 more source

Reactions of alkaline earth zirconate refractories with titanium alloys [PDF]

open access: yesMATEC Web of Conferences, 2020
The severe reactivity of titanium alloys with ceramics is a major challenge for their processing. Up to now refractories to melt and cast titanium alloys are selected on the basis of a low Gibbs energy of formation. This kind of selection assumes that an
Schafföner Stefan
doaj   +1 more source

Impact of magnesium oxide concentration and yttrium-aluminum garnet stoichiometry deviation on the microstructure and optical transmission of YAG-based ceramics [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2021
The paper investigates the effect of the magnesium oxide concentration on the ceramics’ microstructure and optical transmittance under conditions of excess Al3+ (4.8 mol.%) and Y3+ (2.9 mol.%) cations in the garnet structure, as well as the ...
Fedor F. Malyavin   +8 more
doaj   +1 more source

Oxidation resistance of ODS alloy PM2000 from 880°C to 1400°C [PDF]

open access: yes, 1998
Oxidation resistance of ODS alloy PM2000 from 880°C to 1400°
Alexis, Joël   +2 more
core   +1 more source

The electronic state of thin films of yttrium, yttrium hydrides and yttrium oxide [PDF]

open access: yesSolar Energy Materials and Solar Cells, 2014
Thin films of yttrium hydride have for almost 20 years been under investigation for optoelectronic and solar energy applications due to the hydrogen-induced switching in electronic state from the metallic elemental yttrium and yttrium dihydride to the transparent semiconductor material yttrium trihydride.
Mongstad, Trygve   +3 more
openaire   +2 more sources

Yttrium Oxide Nanowires

open access: yes, 2010
Yttrium is one of the most important rare-earth elements. Yttrium compounds show promise for applications such as high quality phosphors, catalysts, up-conversion materials and fine ceramics because of their optical, catalytic properties and high-temperature stability.
Nan Li, Kazumichi Yanagisaw
openaire   +4 more sources

Influence of the Ti-TiN-(Y,Ti,Al)N Nanolayer Coating Deposition Process Parameters on Cutting Tool Oxidative Wear during Steel Turning

open access: yesNanomaterials, 2023
Ti-TiN-(Y,Ti,Al)N coatings with a three-layer architecture (adhesive Ti layer, transition TiN layer, and wear-resistant (Y,Ti,Al)N layer) were studied. When depositing coatings, three arc current values of the yttrium cathode were used: 65, 85, and 105 A.
Alexey Vereschaka   +7 more
doaj   +1 more source

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