Results 41 to 50 of about 99,192 (223)
Prospects of application of high-tech carbon material as drainage in glaucoma surgery
Российский офтальмологический журнал, 2018 Purpose. To conduct an experimental and clinical study of a hypotensive effect of implantation of an improved carbon drainage with an optimized sorption capacity. Material and methods.
A. V. Stepanov +2 more
doaj +1 more source
Massive production of graphene oxide from expanded graphite [PDF]
, 2013 In a deviation from the conventional Hummers method, a spontaneous expansion approach was introduced with expanded graphite as the precursors. The intercalating agent (H2SO4) was able to penetrate into the expanded graphite; this had further expanded the graphite and as a result, a foam-like intermediate was produced.
arxiv +1 more source
Magnetic functionalization and Catalytic behavior of magnetic nanoparticles during laser photochemical graphitization of polyimide [PDF]
arXiv, 2023 We report laser-assisted photochemical graphitization of polyimides (PI) into functional magnetic nanocomposites using laser irradiation of PI in the presence of magnetite nanoparticles (MNP). PI Kapton sheets covered with MNP were photochemically treated under ambient conditions using a picosecond pulsed laser (1064nm) to obtain an electrically ...
arxiv
Current Trends and Future Perspective for Cold Spray Metal‐Ceramic Composites
Advanced Engineering Materials, EarlyView.The use of cold spray (CS) technology for creating cermet deposits, combining ceramic and metallic components, is advancing rapidly. Cermets offer excellent temperature handling and erosion resistance for diverse applications. This review outlines the current state of the art, focusing on the deposition dynamics and strategies to optimize the ...
Romario A. Wicaksono +2 more
wiley +1 more source
Universal infrared conductivity of graphite [PDF]
, 2010 The conductivity of graphite is analytically evaluated in the range of 0.1-1.5 eV, where the electron relaxation processes can be neglected, and the low energy excitations at the "Dirac" points are most essential. The value of conductivity calculated per one graphite layer is close to the universal conductivity of graphene.
arxiv +1 more source
Advanced Engineering Materials, EarlyView.Hydrostatic bearings excel in high‐precision applications, but their performance hinges on a continuous external supply. This study evaluates various material combinations for sliding surfaces to mitigate damage during supply failures or misalignment and to discover the most effective materials identified for enhancing the reliability and efficiency of
Michal Michalec +6 more
wiley +1 more source
First-principles modeling of the interactions of iron impurities with graphene and graphite [PDF]
, 2010 Results of first principles modelling of interactions graphene and graphite with iron impurities predict the colossal difference between these two carbon allotropes. Insertion of the iron atoms between the planes of graphite is much more energetically favourable than adsorption of the iron adatom at graphite or graphene surface.
arxiv +1 more source
Structural transformation of implanted diamond layers during high temperature annealing [PDF]
Nuclear Instruments and Methods in Physics Research B 365A, 50-54
(2015), 2016 In the recent years graphitization of ion-beam induced amorphous layers became the basic tool for device fabrication in diamond. The etchable graphitic layers can be removed to form free-standing membranes into which the desired structures can be sculpted using FIB milling.
arxiv +1 more source
Advanced Engineering Materials, EarlyView.This study explores a process chain to produce dispersoid‐strengthened CuCr1Zr for applications requiring high strength and conductivity. Using gas‐atomized powder and copper‐plated alumina nanoparticles, additive manufacturing is performed via powder bed based additive manufacturing with green and red lasers, followed by heat treatment.
Heinrich von Lintel +7 more
wiley +1 more source
Precise design strategy of FeNiCrMo eutectic high-entropy alloys
Journal of Materials Research and Technology, 2022 A group of low-cost Fe40Ni(50-x)Cr10Mox high-entropy alloys (HEAs) without the Co element were proposed. The microstructure and properties were investigated.
Luer Yu +8 more
doaj