Results 11 to 20 of about 406,295 (339)

Spark Plasma Sintering of Nano Silicon Carbide Reinforced Alumina Ceramic Composites

open access: yesEuropean Mechanical Science, 2021
Although Al2O3 has been commercially preferred material, it cannot be used in applications subject to variable and sudden loads due to its low fracture toughness.
Mustafa Güven Gök
doaj   +1 more source

Activity for Diesel Particulate Matter Oxidation of Silver Supported on Al2O3, TiO2, ZnO, and CeO2: The Effect of Oxygen Concentration [PDF]

open access: yesE3S Web of Conferences, 2023
Particulate matter (PM) is a problem for human health the major producer of PM are diesel engines. The diesel particulate filters (DPFs) are used for the limitation of the PM.
Promhuad Punya   +5 more
doaj   +1 more source

Experimental investigation of usage of POE lubricants with Al2O3, graphene or CNT nanoparticles in a refrigeration compressor

open access: yesBeilstein Journal of Nanotechnology, 2023
In this study, the use of nanolubricants containing Al2O3, graphene, and carbon nanotubes (CNTs) at different mass fractions in a refrigeration compressor was experimentally investigated.
Kayhan Dağıdır, Kemal Bilen
doaj   +1 more source

Synthesis of New Lanthanide Phosphorescent Pigments from Precursor Na[Ln(edta)(H2O)n] (Ln = Dy, Ho, Yb and Er, n = 1-3) Immobilized on B2O3 /Al2O3 bed [PDF]

open access: yesشیمی کاربردی روز, 2022
Na[Ln(edta)(H2O)n] (Ln = Dy, Ho, Yb and Er, n = 1-3) complexes were synthesized using lanthanide salts and Na4(edta). The synthesized lanthanide complexes were characterized using different techniques including elemental analysis, UV-Vis, FT-IR and ...
Marzieh Daryanavard, Masoomeh Asadi
doaj   +1 more source

High-Q distributed-Bragg-grating laser cavities [PDF]

open access: yes, 2011
Applying Bragg gratings in Al2O3 channel waveguides, we demonstrate distributed Bragg reflectors with Q-factors of 1.02x10e6. An integrated Al2O3:Yb3+ waveguide laser with 67% slope efficiency and 47 mW output power is achieved with such ...
Bernhardi, E.H.   +4 more
core   +15 more sources

SPECTRAL STUDIES OF THE PROCESSES OF ALUMINUM NANOPOWDER FORMATION EXPOSED BY SHORT SERIES OF TWIN LASER PULSES IN THE AIR ATMOSPHERE

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2020
The processes of formation of oxidized nanopowders depending on the number of pulses were studied when double laser pulses with an energy of 52 mJ and an interpulse interval of 10 microseconds were applied to an aluminum target placed in a closed ...
Kh. Bazzal   +5 more
doaj   +1 more source

Studies and Research on the Influence of Deposit Parameters on the Characteristics of Composite Coatings Ni-Al2O3 Obtained by Electrochemical Methods

open access: yesThe Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2021
The paper presents the characterization of composite coatings with nickel matrix using as dispersed phases Al2O3 particles, both from the microstructural point of view and from the point of view of the layer thickness, micro-hardness and corrosion ...
Simona BOICIUC
doaj   +1 more source

Improvement of dielectric loss of doped Ba0.5Sr0.5TiO3 thin films for tunable microwave devices [PDF]

open access: yes, 2003
Al2O3-Ba0.5Sr0.5TiO3 (Al2O3-BST) thin films, with different Al2O3 contents, were deposited on (100) LaAlO3 substrate by pulsed laser deposition (PLD) technique.
C. K. Ong   +10 more
core   +2 more sources

Investigation on AA5083/AA7075+Al2O3 Joint Fabricated by Friction Stir Welding: Characterizing Microstructure, Corrosion and Toughness Behavior [PDF]

open access: yesMaterials Research, 2015
The effects of Al2O3 reinforcements on microstructure, corrosion and toughness properties of dissimilar aluminum alloys joint fabricated by friction stir welding (FSW) technique were explored in this research.
Mehdi Saeidi   +2 more
doaj   +2 more sources

Microstructure and mechanical properties of Al2O3-Cu-Ni hybrid composites fabricated by slip casting [PDF]

open access: yesProcessing and Application of Ceramics, 2020
This work focuses on developing the fabrication method of hybrid composites based on Al2O3-Cu system with the addition of nickel phase. The composites were prepared by slip casting and the slurries with a high concentration of solid content were used ...
Justyna Zygmuntowicz   +5 more
doaj   +1 more source

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