Materials Literature
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The xBiCoO3-(1-x)BiFeO3 [0 ≤ x ≤ 58 at. %] solid solution films were epitaxially grown on SrTiO3 (100) substrates, and the dependence of the magnetic properties on the BiCoO3 concentration was systematically investigated. The remanent magnetization (Mr) and coercive field (Hc) increased with the BiCoO3 in the case of…
In this paper, the (001)-oriented hexagonal YMnO 3 ( h -YMO) thin films with various nominal strain states were deposited on MgO(100), MgO(111) and YSZ(111) substrates by pulsed laser deposition. The ultrafast dynamics probed by wavelength-tunable femtosecond pump-probe spectroscopy was performed to disclose the effec…
A simple novel near-infrared water-soluble glucose-conjugated porphyrin, 5,15-bis-[(trimethylsilyl)ethynyl]-10,20-bis[4-β-D-glucopyranosyl)phenyl]porphyrin, with good optical stability and high emission ability in near-infrared region, was synthesized. And Optical Imaging in vivo with this compound as probe was perfor…
Polycrystalline NiZn–ferrite thin films were deposited on Si(100) substrate by rf magnetron sputtering, using targets with a nominal composition of Ni0.5Zn0.5Fe2O4. The effects of substrate condition, sputtering pressure, and postannealing on the structure and magnetic properties of thin films have been investigated.…
A soft-type neutron-shielding resin has been developed by improving an existing hard-type neutronshielding material using the epoxy-based resin as an additional shielding material. A flexible heat-resistant neutron-shielding material has been developed, which consists of a new polymer-based resin with boron. The neutr…
Magnetocaloric effect (MCE) and magnetic phase transition of Ho3Co compound have been investigated. The two successive magnetic transitions: spin–reorientation transition at TSR = 8.5 K and antiferromagnetic (AFM)–paramagnetic transition at the Néel temperature TN = 21 K are observed. The Ho3Co compound undergoes a fi…
Bulk anisotropic PrCo5 nanostructured magnets were prepared by hot deformation technique. The effects of height reduction on the structure and magnetic properties of the magnets were studied. It is found that the height reduction plays an important role in the formation of c-axis crystal texture of PrCo5 phase during…
The fiber that serves as a reinforcement in reinforced composites may be artificial or natural. Past studies show that artificial fibers such as glass, carbon, etc., have been generally used in fiber-reinforced composites. Although glass and other synthetic fiber-reinforced composites possess high specific strength, t…
N,N′-bis-(4-carboxyphenyl)bicyclo[2,2,2]oct-7-ene-2,3,5,6-tetracarboxylic diimide was prepared by reaction of bicyclo[2,2,2]oct-7-ene-2,3,5,6-tetra carboxylic dianhydride with p-aminobenzoic acid in a mixture of acetic acid and pyridine (3: 2). Polycondensation of N,N′-bis-(4-carboxyphenyl)bicyclo[2,2,2]oct-7-ene-2,3,…
The results of graphite evaporation by electron beam are presented. The evaporation rate as a function of the beam power and electron bombardment duration is measured. The dependence that the evaporation rate has on the beam power has a threshold character. The lowest power for evaporation is 600 W in our experiments.…
The pyrolysates of NiC2O4. 2H2O in the air were investigated by TG-DSC, SEM and TEM. The results showed that there are two stages in the process of the pyrolytic decomposition of NiC2O4. 2H2O in the air. The crystal water in NiC2O4. 2H2O was lost from 175 °C to 275 °C. NiC2O4 was pyrolysized into NiO from 325 °C to 40…
Surface electronic structures of n-GaP(001) and p-InP(001) with and without sulfur treatment have been studied by X-ray photoelectron spectroscopy (XPS), synchrotron radiation photoemission spectroscopy (SRPES), and inverse photoemission spectroscopy (IPES). The Fermi level (EF) of a clean n-GaP(001)-(2x4) surface is…
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Methods of X-ray diffraction, optical metallography, scanning and transmission electron microscopy, and microhardness measurements have been used for a layer-by-layer examination of the structure of a niobium single crystal after loading by spherically converging shock waves. It has been found that after loading the s…
Au and Pt nanoparticles (NPs) were anchored on multiwalled carbon nanotubes (MWCNTs) via electron beam induced amorphous carbon encapsulation by energy-tunable MeV electron beam irradiation (MEBI) under ambient conditions. MEBI allowed the formation of size-homogeneous Au and Pt NPs on MWCNTs, as observed by transmiss…
By molecular dynamics simulations employing an embedded atom method potential, we have investigated structural transformations in single crystal Al caused by uniaxial strain loading along the [001], [011] and [111] directions. We find that the structural transition is strongly dependent on the crystal orientations. Th…
A composite constituted by zirconia supported on magnesia is thermally treated. Depending on temperature, several crystal sizes and crystalline zirconia structures are obtained. At low temperatures, cubic zirconia crystals are found to be deposited on the crystalline magnesia matrix. As temperature increases, the cubi…
The strain and stress distributions in the external housing of free-running nonfrictional eccentric mechanisms are investigated by the finite-element method. Formulas describing the influence of the housing’s geometric parameters on its stress-strain state are derived.
The effect of antimony doping on the structural, magnetic, and electrical properties of transparent SrSn0.9Sb0.05Fe0.05O3 films synthesized by RF sputtering on oxidized Si and quartz substrates has been investigated. A reduction in electrical resistivity by two orders of magnitude compared to 5% Fe doped SrSnO3 film w…
Inorganic electroluminescence (EL) devices have attracted attention because of their application in low-power-consumption displays. However, the operating voltage of inorganic EL devices is very high. We have investigated AlBNO films as host materials of the luminescence layer to lower the operating voltage. Moreover,…