Materials Literature
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Thermal and mechanical properties of PU/POSS nanocomposites plasticized with DOA were investigated. These hybrid materials were prepared using one-step method through the incorporation of flexible HTPB prepolymer, reactive or non-reactive POSS nanoparticle, and DOA plasticizer under IPDI curative system. The plasticiz…
We develop a mesoscopic model of thermoelectric coupling in nanosystems, allowing for different phonon and electron temperatures, and mutual energy exchange. Its compatibility with the second law of thermodynamics is proved. By comparisons with other theoretical proposals, the different coefficients involved in the mo…
Langmuir I. invented plasma terminology in 1926 as 4 th state of the matter. Plasma is a special state of matter in which existing at the same time positive ions, negative ions, electrons... and the total positive charge is equal to negative charge. Since plasma is related to high energy charged particles, so people c…
In this research work natural bio polymer “chitosan ” was synthesized using locally available fish shells and adsorption of copper by chitosan was studied. Synthesize of chitosan involved four main stages as preconditioning, demineralization, deprotenisation and deacetylation. Chitosan was characterized using Fourier…
In the current research work reinforcement of a thermoplastic polyurethane (TPU) polymer with graphene powder (G, in the form of particles) as a nanofiller material by in-situ and ex-situ mixing of various weight fractions of G is reported. In addition, investigation on the effect of the weight fraction of G on the me…
The pure and magnesium silicate (Mg2+/Si4+) doped tialite ceramics were prepared from the homogenized mixture of alumina and titania by uniaxial pressing and pressure-less sintering at 1550°C in air. Thermal conductivity and thermal expansion of the doped and undoped tialite ceramics were measured from 30 to 700°C. Th…
Carbon electrochemical capacitor electrodes containing nitrogen groups were studied with respect to their electrochemical behaviour, chemical composition and physical characteristics. Thermal treatment of nitrogen-enriched carbon materials in different atmospheres was used to control the specific type and concentratio…
Ti–Fe–Cu alloys with higher Young’s modulus, hardness and compressive mechanical properties than those of the existing Ti alloys were developed using a d-electrons alloy design method in order to improve Young’s modulus, hardness and compressive properties of Ti and existing Ti alloys for use as metallic stents. Their…
Vertical arrays of single walled carbon nanotubes (VA-SWNTs) were grown using bi-metallic nanoparticle pro-catalysts. Iron oxide particles were doped with varying quantities of first row transition metals (Mn, Co, Ni, and Cu) for a comparative study of the growth of nanotubes. VA-CNT samples were verified using scanni…
This report proposes a procedure to synthesize monodisperse Au nanoparticles of different mean sizes (6–15 nm) under a constitute reaction condition only by altering the interval time between additions of citric acid and NaOH solutions into boiling HAuCl4 solution without any growth modifiers.
Graphite fluoride is classified into (CF)n and (C2F)n types based on its structure and composition. The former (CF)n has been widely prepared and commercially utilized as electrodes in primary lithium ion batteries (LIBs). Porous electrodes, i.e. templated mesoporous carbons, can greatly improve first Coulombic effici…
Conventional solution-phase chemical reduction of exfoliated graphene oxide sheets followed by drying often results in serious reaggregation of the graphene sheets due to the high surface energy. Here we report a modification of the reduction process based on the Hummers method that involves an in situ spray pyrolysis…
A reproducible mechano-responsive luminescent system based on a discotic crown ether derivative (1) doped with a small amount of fluorophore has been prepared. The emission intensity was enhanced when the material was subjected to mechanical shear with localized response.
This paper reports development and thermal characterization of tin-capped vertically aligned multiwalled carbon nanotube array composites for thermal energy management in load-bearing structural applications. Three-omega voltage measurements are used to characterize thermal conductivity in the vertically aligned multi…
Mesoporous silica (m-SiO2) coated gadolinium (Gd) ions-doped upconversion nanoparticles (UCNPs) are regarded as one of most attractive nano-platforms which hold great potential in future cancer theranostics. The current general synthetic strategy for such promising structures includes the extraction of surfactant mole…
In this study, we report on electrochemically deposited CoS onto ITO conducting glass substrates as counter electrodes for efficient quantum dot-sensitized solar cells (QDSCs). The CoS/ITO counter electrodes show remarkable electrocatalytic activity for the reduction of polysulfide compared to that of the CoS/ITO coun…
We report on the growth of a different orientation plane of Ni3TeO6 single crystal by the flux growth method for the first time. X-ray diffraction is used to characterize the single crystal and it crystallizes into the trigonal structure having space group R3 with lattice parameters of a = 5.1087 Å and c = 13.767 Å. T…
Glasses with the composition 51.9SiO2·21.2MgO·21.2Al2O3·5.7ZrO2 (in mol%) were crystallized in different annealing steps at 950 °C and 1060 °C. Using X-ray diffractometry and high resolution (scanning) transmission electron microscopy with energy-dispersive X-ray spectroscopy, it is found that the annealing-induced de…
A multiphase composite film composed of nickel(II) hydroxide and cobalt(II) hydroxide was synthesized by a novel co-precipitation method. The film exhibited high capacitance and stable cyclic retention because of its 3D network nanostructure and high conductivity due to CoOOH evolved during cycling.
Reconstruction of the human auricle remains a challenge to plastic surgeons, and current approaches are not ideal. Tissue engineering provides a promising alternative. This study aims to evaluate the chondrogenic potential of bone marrow-derived mesenchymal stem cells on a novel, auricular-shaped polymer. The proposed…