Materials Literature
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The effect of annealing temperature and time on the microstructure and mechanical properties of AZ31B Mg alloy sheets were investigated. The specimens were deformed by general roll-casting and combining energy-field roll-casting (electromagnetic field and ultrasonic). The microstructure analysis showed that the re-cry…
High-sensitive heat detection sensor with a microfluidic chip is proposed, fabricated and evaluated, and also heat detection of a brown fat cell (BFC) has been demonstrated. The measurement principle relies on resonant thermal sensor, where the resonant frequency of a Si resonator changes due to incident heat to the r…
This report describes the results of mineralogical and geochemical analysis of a suite of mudstones from the Wealden Group of southern England. The work was carried out as part of the ongoing „Ground Shrinkage Hazards‟ project under the Land Use, Planning and Development Programme. The first part of the report gives a…
Novel electrically conducting composite hydrogel materials comprising of polyaniline (PANI) nanoparticles dispersed in a poly(vinyl alcohol) (PVA)–g–poly(2-acrylamido-2-methyl-1-propanesulfonic acid) matrix were prepared by in situ polymerisation of aniline (AN). The conversion yield of AN into PANI particles was dete…
Researchers are currently exploring the use of acid-sensitive dyes to determine the quantity of acid generated from a photoacid generator (PAG) and to analyze acid-generating reactions. Requiring merely the addition to the resist of an acid-sensitive dye, which reacts with the acid generated from the PAG during the ex…
Cheap chemical approaches: CSD/MOD and MOCVD were used and demonstrated to be feasible in 2G-wire production. New reel-to-reel MOCVD pilot system with higher throughput was examined, tuned and used in all YBCO depositions as well as for MgO, LMO, YSZ and CeO2 buffer layers fabrication. YBCO deposition process was foun…
A convenient method is described that uses a quartz wool substrate to immobilise nanometre sized phosphor precursor particles enabling them to be fired at high temperature without sintering/agglomeration. The nanometre sized phosphor particles are easily removed from the substrate by re-dispersion into liquid for subs…
The method to produce the hollow micro/nano fibers through the bicomponent spinneret of electrospinning was introduced and the influence of the process parameters on the morphology of the micro/nano fibers was presented in the paper. The result revealed that the PAN fibers with uniform hollow construction could be col…
The dolomite and sandstone that can be found in Latvia, lacks the mechanical strength and for most of the large motorways the aggregates are imported from other countries causing increase of the costs and growth of emissions from transportation. On the other hand, large amounts of BOF steel slag aggregates with good q…
Covers advancements in spacecraft and tactical and strategic missile systems, including subsystem design and application, mission design and analysis, materials and structures, developments in space sciences, space processing and manufacturing, space operations, and applications of space technologies to other fields.
It is reported the influence of the interstitial atoms doping on the FeSe superconductor. Polycrystalline samples with FeSeFx and FeSeBx nominal compositions were prepared by solid state reaction. An enhancement of the superconducting transition temperature was observed in the temperature dependence of the electrical…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Laura De Pisapia, Letizia Verdolotti, Eduardo Di Mauro, Ernesto Di Maio, Marino Lavorgna, Salvato…
Split Hopkinson Pressure Bar system (SHPB) with large-diameter and Nylon bars introducing a shear-compression loading device is used in order to investigate the dynamic behaviour of aluminium honeycomb under multiaxial loadings conditions. All shear-compression configurations including the loading angle variation from…
BaTiO3 (BTO) film was prepared by pulsed laser deposition, and then the film was implanted with Fe ions at 5×1016 cm-2 dose. The Fe:BTO film shows simultaneously ferromagnetic order and ferroelectric order at room temperature. More important is, the temperature dependent magnetic measurements of the Fe:BTO film show a…
Nano-roughened Teflon-like film coated poly-crystalline Si photovoltaic solar cells (PVSCs) with enhanced surface hydrophobicity and conversion efficiency (η) are characterized and compared with those coated by a Si nanorod array or a standard SiN anti-reflection layer. The Teflon-like film coated PVSC surface reveals…
XPS spectra of silver excited by synchrotron irradiation with energy same as Al Kα X-ray has been measured. After filtering spectrum noise, the inelastic background starting from the lower binding energy of photoelectrons is removed by an iteration procedure. The energy loss spectrum for a single sub-shell photoelectr…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation C. H. Chan, L. H. Sim, H. W. Kammer, W. Tan; The influence of the amorphous polymer on conductivi…
Ordered arrays of polystyrene (PS) spheres dissymmetrically decorated with gold nanoparticles (NPs) were facilely assembled at air/liquid interface by the combination of colloidal crystal templating and modified conventional electroless plating. Distinguishingly, Sn2+ ions served as the reductant and stabilizer in the…
A series of novel donor–acceptor–donor triads, namely PFTn (n = 0–4), consisting of fluorene-oligothiophenes (FTn) as a donor and perylenediimide (PDI) as an acceptor were synthesized and characterized. The chemically bonded electron donor and acceptor chromophores in the triads were found to be independent. These tri…
The plastic processing possibilities for products made of spheroidal cast iron are particularly analysed. The problem of precise defining that kind of alloy in present machine industry is shown. Necessity of classification change in both, Polish and European norms for cast irons, is indicated. The main aim of research…