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。
SnO 2 nanopowders were pressed into pellets and annealed in air from 100 to 1400°C. Both XRD and Raman spectroscopy confirm that all annealed samples were single phase with a tetragonal rutile structure. Annealing induces an increase in the SnO 2 grain size from 30 to 83 nm. Positron annihilation measurements reveal v…
This paper presents, analysis of magnetizing inrush current for different voltage angles and harmonic analysis of that inrush current using different FFT windowing techniques. Time domain simulations were used to solve the inrush phenomenon. Square, Welch, Hanning and Parzen windows were used to truncate the obtained…
Abstract Summary: A soybean oil‐based vegetable oil macromonomer (VOMM) was incorporated as a comonomer into an all‐acrylic copolymer via semi‐continuous emulsion polymerization. Structurally, VOMMs are comprised of long hydrocarbon fatty acid moieties with allylic double bonds which enable auto‐oxidative crosslinking…
The mechanisms of formation of a plateau in dependences of the reversible permittivity on the external electric field strength in a ceramic sample of the y PZN- m PMN- n PNN — x PT ( x = 0, 3; y = 0.0982; m = 0.4541; n = 0.1477) system have been analyzed using X-ray diffraction and atomic force microscopy. It has been…
The electric conductivity of perovskite-like Ba2(In1 − x Al x )2O5 solid solutions (0 < x ≤ 0.20) characterized by structural disordering in the oxygen sublattice was studied as a function of temperature and partial pressure of oxygen in an atmosphere with a low content of water vapors ( $$p_{H_2 O}$$ = 3 × 10−5 atm).…
Nanotechnology have wildly been applied in sports engineering, such as sports stadiums, field turf, racks, sports-wear, equipments and supplement. This may greatly change the present situation of sports and promote the advance of athletic sports, creating a lot of opportunity for the increase of the record of athletic…
We study the geometries, stabilities, electronic and magnetic properties of (MgO)n (n=2–10) clusters doped with a single Mn atom using the density functional theory with the generalized gradient approximation. The optimized geometries show that the impurity Mn atom prefers to replace the Mg atom which has low coordina…
Polylactic acid (PLA) reinforced with chitin nanofibers was produced from a mixture of a colloidal suspension of PLA particles with chitin nanofiber suspension. The dispersion medium was solely water, which was removed by filtration and drying. Nanocomposites were obtained by compression molding of the filtrates. Stat…
Electrochemical behavior of aged and solution treated maraging steel have been investigated, in NaCl using open circuit potential (OCP) and potentiodynamics measurements. OCP shifts to more noble value during initial stage of immersion followed by slow shift in potential during the middle stage of immersion and eventu…
Abstract The ideal formula for members of the cerchiaraite group is Ba 4 M 4 (Si 4 O 12 )O 2 (OH) 4 C l2 [Si 2 O 3 (OH) 4 ], where M represents Mn 3+ , Fe 3+ or Al in the octahedral site. A suffix-based naming scheme is used in which the original cerchiaraite is renamed cerchiaraite-(Mn) and two new minerals are named…
Novel anode nanopowder materials consisting of ceria-based components synthesized by glycinenitrate process were investigated for solid oxide fuel cells. Glycinenitrate process involves a self-combustion reaction at 220 C of water-based nitrate and glycine solutions which subsequently can reach up to 1200 C. The resul…
We report the results of the structural, transport and magnetotransport studies on mono-valent doped La 1-x Na x MnO 3 (LNMO) (x = 0.05, 0.1 and 0.15) manganites. XRD measurement and Rietveld refinement on LNMO samples shows that, all the samples crystallize in distorted rhombohedral structure without any additional i…
In this paper, simulation studies are carried out to enhance the understanding of the mechanisms for the reported improvements in breakdown strength of nanocomposites. Electric field driven partial discharges and temperature rise can lead to electrical breakdown and hence it is important to study the electric field di…
The Objective of this work was to evaluate the mechanical properties: modulus of rupture (MOR), tensile strength in perpendicular direction (TP) and tensile strength in surface direction (TS) of Medium Density Fiberboards (MDF) manufactured with polyurethane resin prepared with castor oil (PU Castor Oil) and fibers of…
Polycrystalline samples of the phosphide oxides RE(2)AuP(2)O (RE = La, Ce, Pr, Nd) were obtained from mixtures of the rare earth elements, binary rare earth oxides, gold powder, and red phosphorus in sealed silica tubes. Small single crystals were grown in NaCl/KCl fluxes. The samples were studied by powder X-ray diff…
Sidewall functionalization by chemical agents can improve the dispersion of carbon nanotubes (CNTs), but the improvement is at the expense of their properties and structure. An environmentally friendly dispersant, cyclodextrins (CD), was revealed as a preferable alternative to functionalize CNTs without changing their…
Wopmayite, ideally Ca 6 Na 3 □Mn(PO 4 ) 3 (PO 3 OH) 4 , is a new secondary mineral from the Tanco mine, Bernic Lake, Manitoba. It occurs in vugs in a single 5–10 cm mass of phosphate-carbonate mineralization in a spodumene-rich boulder found in the dumps of the Tanco Mine, Bernic Lake, Manitoba, Canada. It is a second…
The phase behaviors in a binary mixture of diblock copolymers confined between two parallel walls are investigated by using a cell dynamics simulation of the time-dependent Ginzburg—Landau theory. The morphological dependence of the wall-block interaction and the distance between walls (confinement degree) has been sy…
We investigate the change in the composition and optical properties of porous silicon (por-Si) obtained by electrochemical etching of a palate made of n -type (111) silicon single crystal under high-temperature annealing and processing in tetraethyl orthosilicate (TEOS). It is shown that TEOS processing and annealing…
The dynamic responses of a neoprene coated cylinder subjected to underwater explosion were experimentally investigated. Two metallic cylinders of the same geometry were simultaneously fire tested in an artificial lake. One of the cylinders was coated with a layer of neoprene and the other had none. The strain and acce…