The vacuum hot pressing (VHP) of silicon carbide monofilaments coated with nanocrystalline Ti–6Al–4V has been studied. During consolidation, very high densification rates were observed, even at temperatures and pressures well below those normally used for processing conventional Ti–6Al–4V. From the cross-sections of partially consolidated specimens, the evolution of coated fiber–fiber contacts ...

this paper presents the results of analytical studies concerning the flexuralstrengthening of reinforced concrete beams by external bonding of high-strength lightweightcarbon fiber reinforced plastic (cfrp) plates to tension face of the beam. three groups of beamswere tested analytically and compared with existing experimental results. results of the numericalanalyses showed that, although addi...

This study proposes a long period fiber grating (LPFG) with a zinc oxide (ZnO) nanoparticle layer for use as a carbon dioxide (CO2) gas sensor. Inductively coupled plasma (ICP) etching, corona treatment, and electrostatic spraying were used to fabricate this ZnO nanoparticle-coated LPFG CO2 gas sensor. Repeated gas sensor tests showed that, when a 15% CO2 mixture was injected (0.2 L/min) into a...

Ammonia is an important indicator among environmental monitoring parameters. In this work, thin-core fiber Mach-Zehnder interferometer deposited with poly (acrylic acid) (PAA), poly (allyamine hydrochloride) (PAH) and single-walled carbon nanotubes (SWCNTs-COOH) sensing film for the detection of ammonia gas has been presented. The thin-core fiber modal interferometer was made by fusion splicing...

MXene-based Lightning Strike Protection Coating In article number 2100803, Vipin Kumar and co-workers investigate MXene as an effective filler to improve the electrical mechanical properties of divinylbenzene (DVB) thermosetting resin. Its performance a lightning strike protection coating for carbon fiber reinforced polymer (CFRP) is evaluated. MXenes-DVB reduces surface damage from 40.61 cm2 (...

The performance of a membrane-coated voltammetric sensor for propofol (2,6-diisopropylphenol) has been characterized in long term monitoring experiments using an automated flow analytical system (AFAS) and by analyzing human serum and whole blood samples by standard addition. It is shown that the signal of the membrane-coated electrochemical sensor for propofol is not influenced by the componen...

The rapid heating of carbon-fiber-reinforced polymer matrix composites leads to complex thermophysical interactions which not only are dependent on the thermal properties of the constituents and microstructure but are also dependent on the thermal transport between the fiber and resin interfaces. Using atomistic molecular dynamics simulations, the thermal conductance across the interface betwee...

OBJECTIVE To develop a coated electrode of immobilized denitrificants and to evaluate the performance of a bioelectrochemical reactor to enhance and control denitrification. METHODS Denitrifying bacteria were developed by batch incubation and immobilized with polyvinyl alcohol (PVA) on the surface of activated carbon fiber (ACF) to make a coated electrode. Then the coated electrode (cathode) ...

A simple method that reproducibly creates validation/reference materials for comparison of methods measure the carbonaceous content atmospheric particulate matter deposited on filter media at concentrations relevant to levels has been developed and evaluated. Commonly used determine major components particles collected filters include optical attenuation “Black” (BC) “Brown” (BrC) carbon, therm...

Two types of fibers (carbon and glass) are considered, as an object research, on the surface which a copper coating is applied with thickness 100 nm using magnetron sputtering technology. A finite element model coated fiber was built simulated in COMSOL Multiphysics software. As result calculations, values temperatures, arising during passage electric current coating, have been determined. This...