Materials Literature
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Hydrogen generation through high temperature solid oxide electrolysis cells (SOEC) has recently received increasingly international interest in the large-scale, highly efficient nuclear hydrogen production field. To achieve cost competitive electrolysis cells that are both high performing i.e. minimum internal resista…
In this study a series of polyimide (PI) films were synthesized from fluorinated and nonfluorinated monomers which contained diamines and dianhydrides. The influence of fluorine-containing groups on the glass transition temperature (T g) and tribological properties of the PI films was investigated. The wear mechanism…
A novel cheap macromolecular intumescent flame retardants (Zn-MIFR), was synthesized, and its structure was a caged bicyclic macromolecule containing phosphorus-silicon characterized by IR. Epoxy resins (EP) were modified with Zn-MIFR to get the flame retardant EP, whose flammability and burning behavior were characte…
Open resonators have been widely applied in dielectric sensing and laser cavity. In this letter, we designed and fabricated a novel open resonator using a metamaterial transmission line medium. The open-resonance effect which is generated by multiple negative reflections is demonstrated experimentally. It may open up…
The directional solidification of ternary systems at a constant rate is studied. The following analytical solutions to the problem are found: the temperature and concentration distributions and the fractions of the solid phases of solidifying components in the parent and cotectic mushy zones, which represent a phase t…
Non-magnetic steels are required in energy and transportation fields such as superconducting energy storage equipment, magnetic liquid power generation equipment, superconducting generators, superconducting power transmission and ship electromagnetic propulsion. Experimental research on steel making, hot rolling, solu…
A one-dimensional (1-D) mesoporous TiO₂ nanotube (TiNT) was successfully synthesized via a hydrothermal-calcination process, and employed in simultaneous photocatalytic Cu(2+) removal and H₂ production. Under irradiation, Cu(2+) in the wide concentration range of 8-800 ppm, could be reduced rapidly, and the reduction…
A thermal equivalent model based on Fourier equation is introduced to optimize a thermoelectric microwave power sensor in this paper. The different distance between the load resistor and thermopile is considered carefully to obtain good matching characteristic and high sensitivity characteristic. The sensitivity of th…
Various sizes of TiO2 hollow nanosphers were synthesized by a hydrolysis followed by the hydrothermal treatment using different water content and titanium isopropoxide (TTIP) while the remaining components such as methylamine, ethanol and acetonitrile were kept as a constant. We synthesized the various sizes of sphere…
Three groups of GCr15 steel were heat-treated respectively by conventional spheroidizing annealing, circulation spheroidizing annealing, 1050°C for 30min oil cooling quenching + 700°C tempering. The final heat treatment of these GCr15 steel was 840°C oil cooling quenching + 150°C tempering. The microstructure of the h…
Pulsed laser interference is applied to metallic and semiconductor thin films in the thickness range of 40-100 nm. At intensities which induce local melting we can observe local retraction of the molten material towards the unmolten areas due to dewetting. Thus micropatterning of surface gets feasible. Although this d…
The continuous micro-anode guided electroplating (MAGE) has been improved by using real time control of anode’s elevation rate based on CCD images in the previous research. However, the effects of choosing different process parameters, such as the applied voltage and the gap distance between the anode and column, had…
We report new STAR measurements of midrapidity yields for the Λ, Λ̅ , K[subscript S][superscript 0], Ξ[superscript -], Ξ̅ [superscript +], Ω[superscript -], Ω̅ [superscript +] particles in Cu+Cu collisions at √s[subscript NN]=200 GeV, and midrapidity yields for the Λ, Λ̅ , K[subscript S][superscript 0] particles in Au…
Exolit OP930 (abbreviate OP930) product based on aluminum (diethyl phosphinate) is a new class of flame retardants for the use in epoxy resin (EP). In this paper, the mechanical properties, the morphologies of fracture surfaces, thermal stability, glass transition temperature (T g ) and flame retardant of OP930-EP com…
Ultrafast photocurrent measurements are performed on individual carbon nanotube p-i-n photodiodes. The photocurrent response to subpicosecond pulses separated by a variable time delay Δt shows strong photocurrent suppression when two pulses overlap (Δt=0). The picosecond-scale decay time of photocurrent suppression sc…
Transparent nanocomposite films based on a thermoplastic elastomer, poly[styrene- b-(ethylene- co-butylene)- b-styrene] triblock copolymer (SEBS), and titania sol-gel precursors are fabricated. The SEBS grafted with maleic anhydride (SEBS-g-MAH) can enhance the dispersion of titania in the SEBS matrix. The SEBS- g-MAH…
Silicon nanoparticles were synthesized by passing monosilane through a quartz tube wrapped with Inductive Coupled Plasma (ICP) coil. Microstructures of synthesized silicon nanoparticles were investigated with various process conditions. To research the effects of process parameters on the properties of nanoparticles,…
Over the past several years, diamond simulants have entered the market that consisted of colorless cubic zirconia reportedly coated with a thin layer (e.g., represented to be 30–50 nm) of nanocrystalline diamond particles embedded in a matrix.
α ν β 3 -integrin targeted nanoparticle (NP) emulsions have been shown to detect and quantify angiogenesis and anti-angiogenic therapy in small animal models of atherosclerosis. While these NP were visualized in high resolution pre- and post-injection H-MRI via a Gadolinium (Gd) chelate, we seek to image the perfluoro…
Adsorption of nickel (II) ions with nanodiamonds obtained by the detonation synthesis was studied. A nickel-substituted form of nanodiamonds was obtained. The catalytic activity exhibited by nickel ions (II) in the form of the surface complexes with nanodiamond functional groups in decomposition of hydrogen peroxide w…