Materials Literature
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Polyamide-66(PA66)/CaCO3 micro- and nano-composites were prepared using a polymer solution method at filler loading of 0, 1, 2 and 3 weight percent. Nano-size of CaCO3 was synthesized by micro-emulsion technique. The material was characterized by XRD, SEM, FTIR and UV-VIS techniques. XRD results of composites suggeste…
Two-dimensional problem of excitation of a circular cylinder made of a material with negative permittivity by a plane or a cylindrical wave is considered for the case of TM polarization. Conditions under which resonances of surface plasmons arise in cylinders thin compared to the wavelength are found with the use of s…
The paper demonstrates a new technique for preparing nanostructured films of the Pd x Ce1−x O2−x−δ solid solution. The obtained films are similar to real powder catalysts by their chemical and structural properties and are conductive, which is favorable for the XPS methoda. The effect of the CO+O2 reaction on the oxid…
The effect of the milling energy and nonstoichiometry of cubic tantalum carbide TaC y (0.81 ≤ y ≤ 0.96) on the strain anisotropy of the crystal and the size of particles in nanocrystalline powders has been experimentally investigated using X-ray diffraction. The functional dependence of the reduced broadening of diffr…
We recently demonstrated a new breed of optoelectronic devices based on ultra-thin phase change materials[1]. Non-volatile, ultra-fast and ultra-thin displays based on such materials are of particular interest. In this paper we describe colour performance modelling of such displays by applying well known optical simul…
Alpamys T Ibrayev; Theory of Cathode Lens with Multipole Components of Electrostatic Field and the Space Charge, Microscopy and Microanalysis, Volume 21, Issue
This paper presents results of investigations on the influence of the rise rate of voltage and the leakage distance (Lf) on flashover gradient (FOG) and partial discharges (PD) activity on insulators issued of different polymers materials in dry conditions; the aim of this study being the development of new generation…
This paper reports a comparative case study on the use of different softening products for bed linen fabrics, specifically regarding the sewability of the fabrics. The market offers a wide variety of commercial formulations of softeners for this purpose, but the composition and price varies considerably. This work was…
Effects of the ion-beam voltage on the properties of the diamond-like carbon thin film prepared by ion-beam sputtering deposition* , Sun, Peng, Hu, Ming, Zhang, Feng, Ji, Yi-Qin, Liu, Hua-Song, Liu, Dan-Dan, Leng, Jian
Surface morphology and photoluminescence (PL) properties of both microcrystalline cellulose (MCC), microcrystalline powders of the alkali metals nitrites MNO2 (M = Na. K, Cs) (MCN) and two-component composite materials based on the MCC and MCN have been studied and characterized by means of optical microscopy and lumi…
Nickel substituted cobalt zinc nanoferrites (Co0.6Zn0.4NixFe2-xO4, x=0.2, 0.4, 0.6, 0.8 and 1.0) were successfully synthesised by sol gel method. FT-IR studies showed two absorption bands in the range of 400-600 cm-1corresponding to the M-O bond in the tetrahedral and octahedral clusters, respectively. Powder X-ray di…
The recent achievements in studying the self-assembled evolution of micro- and nanoscale domain structures in uniaxial single crystalline ferroelectrics lithium niobate and lithium tantalate have been reviewed. The results obtained by visualization of static domain patterns and kinetics of the domain structure by diff…
Thermal interface materials (TIMs) are of crucial importance in improving and enhancing heat transfer in electronic packages, particularly in high‐density electronics at regions of exceedingly high temperatures. Commercial TIMs are generally composed of highly conductive particle fillers such as highly thermally condu…
The grounded back electrode can reduce the breakdown voltage. Inserting an insulation barrier is an effective way to increase breakdown voltage. The objective of this paper is to investigate the impact of barrier on AC breakdown with back electrode. The breakdown voltage is acquired from the experiments. The electric…
Few-layer graphene was grown by Chemical Vapor Deposition on a CuO thin film pre-deposited by sputtering on SiO2/Si substrates using acetylene as the carbon source. After evaporation of metal, graphene lies directly in contact with the SiO2 dielectric layer. Raman spectroscopy was used to confirm the presence of a sin…
SmartWire Connection Technology (SWCT) developed by Meyer Burger uses multiple thin copper wires with alloy coating to interconnect solar cells. These thin copper wires separate a 156 mm solar cell into unit cells, which typically have ~4 mm finger length instead of 26 mm as in the case of three busbar solar cells, th…
This work presents a novel user oriented approach that can relate materials science with technological applications in a more transparent, systematic and efficient manner. We have made an attempt to figure out the optimal (corresponding to best combination of material properties) sintering temperature of K0.5Na0.5NbO3…
We have successfully developed two types of cellulose triacetate (TAC) polarizer protection films that meet the LCDs trends toward thinner and larger panels. The novel 25µm TAC film, which has high‐hardness and high‐durability, solves the problems caused by the reduction in the thickness of polarizers and is suitable…
A new approach to achieve VO2-like thermo-optical switching in a one-dimensional photonic crystal by the combination of thermo-optical and optical Kerr effects was proposed and numerically demonstrated in this study. The switching temperature and the hysteresis width can be tuned in a wide temperature range. Steep tra…
Solid Oxide Fuel Cells (SOFC) can serve a large variety of both mobile and stationary applications. In comparison with proton exchange membrane fuel cell technology they have higher efficiency and certain other advantages. However if their potential is to be fully exploited, tighter control is needed because of the SO…