Results 21 to 30 of about 914,133 (243)

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

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

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

The influence of annealing on yttrium oxide thin film deposited by reactive magnetron sputtering: Process and microstructure

open access: yesNuclear Materials and Energy, 2017
Yttrium oxide thin films were prepared by reactive magnetron sputtering in different deposition condition with various oxygen flow rates. The annealing influence on the yttrium oxide film microstructure is investigated. The oxygen flow shows a hysteresis
Y. Mao   +7 more
doaj   +1 more source

Effect of adding yttrium on precipitation behaviors of inclusions in E690 ultra high strength offshore platform steel

open access: yesHigh Temperature Materials and Processes, 2020
The mechanism of inclusions precipitation of the E690 offshore platform steel, with and without addition of yttrium, was studied using the thermodynamic calculation method.
Xi Xiaojun   +4 more
doaj   +1 more source

Residual stress measurement of yttrium barium copper oxide sol-gel films on polycrystalline magnesium oxide.

open access: yes, 1992
Residual stress measurement of yttrium barium copper oxide sol-gel films on polycrystalline magnesium ...
Weite. Wu (7970060)
core   +6 more sources

Comparative Analysis on Reinforcement of Potential Additives in WOKA Cermet HVOF Coating Subjected to Slurry Erosion in Ash Conditions [PDF]

open access: yesIranian Journal of Materials Science and Engineering, 2022
In this paper, an investigation was carried out to test the suitability of potential additive materials in WOKA 3533 (WC-10Co4Cr) cermet HVOF coating subjected to slurry erosion in ash conditions.
Jashanpreet Singh   +3 more
doaj  

Effective joining between oxide dispersion strengthened tungsten-based material (ODS-W) and TZM alloy via spark plasma sintering technology

open access: yesResults in Materials, 2021
In this work, the effective connection between oxide dispersion strengthened tungsten-based material (ODS-W) and TZM alloy has been realized via spark plasma sintering technology.
Dong-Guang Liu   +6 more
doaj   +1 more source

Effect of Yttrium Oxide Impurities on the Structure and Properties of Metallic Hafnium

open access: yesФізика і хімія твердого тіла, 2017
The influence of yttrium oxide impurity content of 0 to 0.4 wt.% on the structure and microhardness metal hafniuminvestigated. It is shown that grain size decreases and the Microhardness of hafnium increases monotonically with increasing content of ...
S. V. Chornobuk   +2 more
doaj   +1 more source

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