Results 21 to 30 of about 1,312,143 (350)

The mechanical properties of a surface-modified layer on polydimethylsiloxane [PDF]

open access: yesJournal of Materials Research, 2008
Surface modification of the elastomer polydimethylsiloxane (PDMS) by exposure to oxygen plasma for four minutes creates a thin, stiff film. In this study, the thickness and mechanical properties of this surface-modified layer were determined. Using the phase image capabilities of a tapping-mode atomic force microscope (AFM), the surface-modified region
K L, Mills   +3 more
openaire   +2 more sources

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   +3 more sources

Stress Distributions of Surface Modified Layer under Hertzian Contact

open access: bronzeThe Proceedings of Conference of Chugoku-Shikoku Branch, 2002
Akira Yoshida   +2 more
openalex   +3 more sources

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

Designing pulse laser surface modification of H13 steel using response surface method [PDF]

open access: yes, 2011
This paper presents a design of experiment (DOE) for laser surface modification process of AISI H13 tool steel in achieving the maximum hardness and minimum surface roughness at a range of modified layer depth.
Aqida, S.N.   +2 more
core   +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

Corrosion behaviour of mechanically polished AA7075-T6 aluminium alloy [PDF]

open access: yes, 2010
In the present study, the effects of mechanical polishing on the microstructure and corrosion behaviour of AA7075 aluminium alloy are investigated. It was found that a nano-grained, near-surface deformed layer, up to 400 nm thickness, is developed due to
Blanc, Christine   +9 more
core   +2 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

Concentrator of laser energy for thin vapour cloud production near a surface [PDF]

open access: yes, 1998
A novel scheme is presented for production of a thin ($100$ cm$^2$) by pulsed laser ablation of a solid surface. Instead of dispersing the laser energy uniformly over the surface, a modified Fabry-Perot interferometer is employed to concentrate the laser
B.A. Knyazev   +7 more
core   +2 more sources

Adhesion of endothelial cells and adsorption of serum proteins on gas plasma-treated polytetrafluoroethylene [PDF]

open access: yes, 1991
From in vitro experiments it is known that human endothelial cells show poor adhesion to hydrophobic polymers. The hydrophobicity of vascular prostheses manufactured from Teflon® or Dacron® may be the reason why endothelialization of these grafts does ...
Aken, W.G. van   +5 more
core   +2 more sources

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