Results 11 to 20 of about 391,322 (266)

Research into morphology and phase structure in the surface of Al-Si alloy modified by yttrium oxide [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2019
Using methods of physical material studies (scanning electron microscopy and micro X-ray spectral analysis), a study was carried out with focus on alteration of structure and phase composition in surface layers of Al-Si alloy (silumin АК10М2N) treated in
D. Zagulyaev   +4 more
doaj   +1 more source

Combining good dispersion with tailored charge trapping in nanodielectrics by hybrid functionalization of silica

open access: yese-Polymers, 2021
Fumed silica-filled polypropylene (PP)-based nanodielectrics were studied in this work. To not only improve the dispersion of the silica but also introduce deep charge traps into the polymeric matrix, five types of modified silicas were manufactured with
He Xiaozhen   +11 more
doaj   +1 more source

Evaluation of surface layer stability of surface-modified polyester biomaterials

open access: yesBiointerphases, 2020
Surface modification of biomaterials is a strategy used to improve cellular and in vivo outcomes. However, most studies do not evaluate the lifetime of the introduced surface layer, which is an important aspect affecting how a biomaterial will interact with a cellular environment both in the short and in the long term.
Hamish Poli   +7 more
openaire   +5 more sources

Titanium-modified plasma nitriding layer and enhanced properties for 42CrMo steel

open access: yesJournal of Materials Research and Technology, 2022
In order to obtain a nitriding layer with thicker ductile diffusion layer and thinner brittle compound layer, plasma nitriding with titanium addition was carried out at 540 °C for 4 h for 42CrMo steel, the characteristic of titanium modified nitriding ...
Jiqiang Wu   +3 more
doaj   +1 more source

Fabrication of Thin Film Heterogeneous Cation Exchange Membrane in Chitosan Nanocomposite Layer with Copper Oxide Nanoparticles [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2022
Hypothesis: The surface modification of a heterogeneous cation exchange membrane was carried out through a chitosan nanocomposite layer containing copper oxide nanoparticles in an electrodialysis process.
SayedMohsen Hosseini   +4 more
doaj   +1 more source

Influence of Surface-Modified Montmorillonite Clays on the Properties of Elastomeric Thin Layer Nanocomposites

open access: yesMaterials, 2023
In recent years, polyurethane nanocomposites have attracted more attention due to the massive demand for materials with increasingly exceptional mechanical, optical, electrical, and thermal properties. As nanofillers have a high surface area, the interaction between the nanofiller and the polymer matrix is an essential issue for these materials.
Adam Olszewski   +6 more
openaire   +2 more sources

Hydrogen Interaction with Deep Surface Modified Zr-1Nb Alloy by High Intensity Ti Ion Implantation

open access: yesMetals, 2018
A deep surface modified TiZr layer was fabricated by high-intensity low-energy titanium ion implantation into zirconium alloy Zr-1Nb. Gas-phase hydrogenation was performed to evaluate protective properties of the modified layer against hydrogen ...
Egor B. Kashkarov   +6 more
doaj   +1 more source

Durable, self-cleaning and anti-fouling superhydrophobic coating based on double epoxy layer

open access: yesMaterials Research Express, 2022
The practical application of superhydrophobic coatings has been greatly restricted due to the complicated preparation and fragile hierarchical structures on the surface.
Xiang Li   +3 more
doaj   +1 more source

Improvement of Cycling Performance of Na2/3Co2/3Mn1/3O2 Cathode by PEDOT/PSS Surface Coating for Na Ion Batteries

open access: yesIndonesian Journal of Chemistry, 2018
The surface-modified Na2/3Co2/3Mn1/3O2 is coated with a conductive Poly (3,4-Ethylene dioxy thiophene)-poly (styrene sulfonate) (PEDOT/PSS) polymer, and their resulting electrochemical properties were investigated as Na-ion battery cathode.
Yatim Lailun Ni’mah   +4 more
doaj   +1 more source

Surface modification of poly(vinylidene fluoride) hollow fibre membranes for biogas purification in a gas–liquid membrane contactor system [PDF]

open access: yesRoyal Society Open Science, 2017
The wetting of hollow fibre membranes decreases the performance of the liquid–gas membrane contactor for CO2 capture in biogas upgrading. To solve this problem, in this work, a poly(vinylidene fluoride) (PVDF) hollow fibre membrane for a liquid–gas ...
Pengrui Jin   +4 more
doaj   +1 more source

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