Materials Literature
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Poly(lactic acid) (PLA) and polypropylene (PP) were comparatively investigated as matrices for injection-moulded composites containing small (1–3 wt%) amounts of short sisal fibre. The morphology, thermal and dynamic mechanical properties, as well as degradation characteristics were investigated. The scanning electron…
Cellular uptake through endocytosis is crucial for drug delivery and nanomedicine. However, the conditions under which passive endocytosis (i.e., not ATP driven) takes place are not well understood. We report MD simulations of the passive uptake of ligand-coated nanoparticles with varying size, shape, coverage, and me…
In this research we prepared copper oxide thin films by Spray pyrolysis method with various salts such as ( acetate, nitrate & copper chloride (0.1 M) and study its structural and optical properties. Laser technique has been used to determine the thickness of thin films, The structure characterization of the film was…
The heterogeneous beta-supported transition metal catalysts were prepared by incipient wetness impregnation. The catalytic oxidation degradation of methyl orange was carried over the heterogeneous catalyst in the peroxide catalytic oxidation process. The pure beta materials showed quick adsorption equilibrium characte…
Cordierite–mullite composites were prepared by using iron tailing, burn talc, suzhou soil, knar clay and alumina powder as raw materials. The main influencing factors such as the molar ratio of cordierite to mullite, amount of iron tailing and calcination temperature were discussed. The microstructure of the sintered…
First, (K,Na)NbO 3 (abbreviated as KNN) powders were synthesized by microwave hydrothermal method using Nb 2 O 5 , NaOH and KOH as raw materials. The effects of NaOH/KOH mole ratio and reaction temperature on the structure of KNN powders were studied systematically. Near spherical KNN powders of about 800 nm in diamet…
Tensile and creep strength of pure V, Nb, Ta, and Nb-9W alloy were examined at 600 °C to assess their applicability as hydrogen permeation material for the recovery of tritium from the high temperature liquid breeder blanket of a fusion reactor. The Nb-9W alloy required a comparatively higher annealing temperature to…
Si4+ and Al3+ doped BaZr(BO3)2:Eu phosphors were prepared by solidstate reaction. BaZr(BO3)2:Eu3+, BaZr(BO3)2:Eu3+, Si4+ and BaZr(BO3)2:Eu3+, Al3+ were characterized by X-ray diffraction spectra (XRD) and photoluminescence spectra. After codoped with Si or Al, the charge-transfer state (CTS) band of Eu3+-O(2-) shows b…
Blood vessels obtained from cadavers and amputated limbs stored at 4°C (i.e., cold stored) potentially represent an economical and readily sourced alternative to autologous vessels and synthetic prostheses for vascular reconstructive surgery. However, cold-stored vessels would need to have a reduced antigenicity and a…
We fabricated indium-zinc-oxide (IZO) thin film transistors (TFT) gated by chitosan (CS) on ITO/glass substrate. Chitosan is demonstrated to be a new kind of solution-processed organic polymer electrolyte, which has nice film-forming characteristic. The chitosan thin film shows a large specific gate capacitance of 8.0…
The nanocomposites containing linear low density polyethylene (LLDPE) and dodecyl amine (DA) modified graphene (DA-G) as nanofiller have been prepared by solution-mixing method and characterized. Transmission electron microscopy analysis of the nanocomposites exhibits homogeneous dispersion of graphene in the LLDPE ma…
The traditional silicothermic process of magnesium metallurgy with dolomite at high temperature and under high vacuum condition results in high operation costs, discontinuous production and huge production consumption. Based on this, a new thermal reduction process of magnesium preparation is proposed with serpentine…
Electromigration (EM) is one of the major reliability issues for modern integrated circuits. EM normally triggers a chip failure due to formation and growth of voids in a metal line of the interconnect structure. In order to investigate the failure mechanisms, EM experiments are performed under accelerated conditions,…
Effect on various strengths of reinforced silica in epoxy polymer forms the bulk of the present study. The silica in 1, 2 and 3wt% proportions is surface treated with a suitable silane agent and the hybrid nanocomposite is prepared by the hand lay-up technique. Characterization of the silica was done by X-ray diffract…
Bi 2 Ti 2 O 7 nanopowders were prepared using bismuth nitrate and tetrabutyl titanate as starting materials by sol-gel method. The decomposition of precursors, crystal structure and microstructure of the sample was characterized by TG/DTA, XRD and TEM techniques, and the results indicate that the sample is well-crysta…
Superconductivities and structural properties of Ti—Zr—Ta ternary alloys are extensively investigated. The TiZrTa sample has a cubic structure (β-phase) and shows a sharp superconducting transition at a critical temperature ( T c ) of about 7.3 K. In addition, two series of Ti—Zr—Ta alloys, with nominal compositions o…
Radiochemical reactions between tritium and carbon dioxide molecules at elevated temperatures have been investigated. There is no significant temperature dependence of the radiochemical reactions in the temperature range from 373 to 573 K. It has been found that concentration of such reaction products as tritiated met…
In the present paper, we have reviews on the fundamentals study of the radiation interactions with materials and point out to development of lead free radiation shielding glass based on bismuth and barium in different glass formers. Beside all mentioned usefulness of the new materials, the development of lead-free rad…
The synthesis and free-radical polymerization of the acrylates monomer containing photosensitive chalcone group and the acrylates monomer containing mesogenic group are described in this paper. The monomers and polymers were characterized by FT-IR and 1 H NMR spectra. The thermal properties of polymers were measured b…
This paper presents a modification of biodegradable polymers with highly-disperse metals, for example Fe/FeO or Fe2O3 (Z), with nano-sized particles. During the course of the work, biodegradable polyethylene composites with the composition PE-276 + Z + starch (Z = 0.1% by wt, starch from 2.5 to 10% by wt) were produce…