Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The display of digitized PD pulses with respect to the power frequency AC cycle has been widely applied both in the laboratory measurement of PD, as well as within industrial PD measurement systems on equipment such as cables, transformers and rotating machines. Theory shows that PD will occur with a specific polarity…
Transparent polyethylene terephthalate (PET) substrates were coated with SiO 2 and ZrO 2 using thermionic vacuum arc (TVA) method for the first time. The melting point of PET is approximately 260°C. Transmittances, thickness, reflectance, and refractive indices of coated PET samples were measured by ultraviolet—visibl…
Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.
Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.
The mechanical behavior of a coarse-grained (100 μm) nickel-base alloy nichrome (Ni-20%Cr) was studied in compression at temperatures ranging from 150 to 1000°C. It was shown that in the temperature interval of 300-600°C this alloy demonstrates the following features of mechanical behavior: i) positive temperature dep…
The mechanical behavior of twinned silicon carbide (SiC) nanowires under combined tension-torsion and compression-torsion is investigated using molecular dynamics simulations with an empirical potential. The simulation results show that both the tensile failure stress and buckling stress decrease under combined tensio…
Gold nanoparticles have a high catalytic activity for CO oxidation at low temperatures providing they remain less than 5nm in diameter. Their structure and stability and the growth processes that occur during heating have been investigated using Angstrom resolution in-situ double aberration corrected transmission elec…
The submelt millisecond annealing process was introduced in the context of complementary metal-oxide semiconductor technology downscaling to enhance the activation of dopants. However, circuit designs can produce nonuniform local radiative and thermal dispersion properties at the front side of a wafer. Nonuniformities…
This paper constitutes a review of the literature over the recent ten-year period in the field of application of silver as a component of polymeric nanocomposites. The methods of preparation of silver nanoparticles as well as their properties have been presented. The synthesis of polymer/Ag nanocomposites, the role pl…
The study presents synthesis of vinyl alcohol and L-aspartic acid copolymers (PVA-co-Asp), by solution polycondensation procedure using manganese acetate as a catalyst. Two copolymers were obtained with molar ratio of poly(vinyl alcohol) (PVA) structural unit to aspartic acid equal to 10/0.5 and 10/1, respectively. PV…
The influence of oxygen content on the dielectric property of BiFeO 3 ceramics is studied by experiment and first-principles calculation. The experimental result demonstrates that the dielectric constant of BiFeO 3 is strongly dependent on introduced oxygen and oxygen vacancies. By comparison with BiFeO 3 , the introd…
It is known that hydrogen embrittlement occurs in austenitic stainless steels like type 304 because of the strain induced martensitic transformation. Rotary bending fatigue tests of type 310S stainless steel with hydrogen cathodic charging were carried out to investigate the effect of hydrogen charging on the austenit…
The aging of the epoxy-paper insulation of an oil-impregnated transformer was studied through partial discharge analysis. Accelerated electrical aging tests were carried out on samples of transformers windings, with and without paper insulation. Partial discharge (PD) measurements according to standard IEC 60270 were…
Means of improving and stabilizing the mechanical properties of titanium alloys are proposed: alloying with fewer alloying elements; thermal and thermomechanical treatment.
Samples of ultradispersed polytetrafluoroethylene, which were prepared with the use of different technological approaches, were studied by X-ray diffraction. The samples were found to belong to the monoclinic system. For some samples, basal reflections, which can be related to paraffins, were found for the first time.…
An extensive study of the intercalation of a number of commercially important anions into a range of layered double hydroxides (LDHs) has been presented. Intercalating anions include key drugs, vitamins, fragrances, dye, etc. The immense potential of LDH systems as reservoirs and carrier of different functional anions…
Metal oxide nanoparticles have been shown to improve the dielectric breakdown strength of insulating polymers. Polyamideimide is a material of practical use for high temperature insulation, and nanoparticle fillers show promise in improving the high temperature stability and dielectric breakdown strength. This work de…
The mechanical properties of E-glass/epoxy composite at high strain rates are important in evaluating this kind of composite under dynamic and impulsive loading. The in-plane and out-of-plane compressive properties at strain rates from 300 to 2500 s-1 were tested with split Hopkinson pressure bar. Samples were tested…
Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.
Wear resistance and structural transformations upon abrasive and adhesive wear of titanium nickelide Ti49.4Ni50.6 in microcrystalline (MC) and submicrocrystalline (SMC) states have been investigated. It has been shown that the abrasive wear resistance of this alloy exceeds that of the steel 12Kh18N9 by a factor of abo…