Materials Literature
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A tribenzotetraazachlorin (TBTAC)-C(60) conjugate having three 15-crown-5 units as substituents, , has been synthesized, and the electronic and supramolecular structure modulations in the presence of Na(+) or K(+) have been elucidated by means of massmetric and spectroscopic techniques.
New composite materials were fabricated by the incorporation of nanodiamond into plated films. The nanodiamond content in the films was found to saturateat around 2% as the concentration in the bath was increased. It was found that a strong interaction must be induced between the nanodiamond and the deposition frontie…
Physical parameters of wurtzite Zn1-xMgxO (0 ≤ x ≤ 1) were analyzed using first-principles calculations. A plane-wave pseudopotential method was employed to a density functional theory, then the effect of Mg incorporation on its lattice parameters and spontaneous polarization in the c-axis direction was studied as a f…
A new intermetallic compound, MnGa2Sb2, has been synthesized by direct reaction from Mn and GaSb at 6 GPa and 500°C for 30 min using a belt-type high pressure apparatus. The compound crystallizes into an orthorhombic structure with the space group Iba2 (No. 45). The structure was refined by the Rietveld analysis of th…
Composite materials composed of poly(L-lactide) (PLLA) and bovine bone powder (average particle size 1.38 μm) were fabricated and the properties were investigated. Partially deproteined and defatted bovine bone was obtained by pre-treatment methods. Composite films were obtained by mixing completely dissolved PLLA wit…
Photosensitive polyimides (PSPIs) and poly(benzoxazole)s (PSPBOs) are widely utilized as protection and insulating layers in manufacturing semiconductors because of their good mechanical properties, low water absorption, and low dielectric constant. In particular, chemically amplified PSPIs and PSPBOs exhibit very hig…
Different electrochemical regimes and porous alumina were applied for template synthesis of cobalt nanowire ( nw ) arrays, revealing several peculiar cases. In contrast to quite uniform filling of sulfuric acid alumina templates by alternating current deposition, nonuniform growth of the Co nw tufts and mushrooms was…
Explicit expressions of the band spectrum near the neutrality point are derived for armchair and zigzag graphene ribbons and carbon tubes. Several spectral features, which were previously observed only in numerical calculations, are given an adequate analytic description in terms of elementary functions. The obtained…
We report measurements of the X-ray photoelectron spectrum on single crystals of α-BiB 3 O 6 . We also present first principles calculations of the band structure and density of states using the full potential augmented plane wave method. In this paper we make a detailed comparison of the density of states deduced fro…
Molecular dynamics simulation has been performed to investigate the structural properties of superionic phase for (Ag x Cu x-1 )Br of x<0.5, which contains two kinds of cations, Ag + and Cu + . Ag + and Cu + ions show different distribution in superionic phase. Concentration dependence also can be observed in the dist…
We present a systematic study on the extraordinary resonant scattering in imperfect acoustic cloak by means of acoustic scattering theory. Analysis results demonstrate that the resonances are inevitable due to the perturbation to the ideal cloak, and specific resonance modes are excited by specific order waves. The st…
Spatially varying grating structures formed at the subwavelength scale behave as a layer with an artificial effective refractive index that is dependent on the local fill fraction. We describe a novel technique to pattern gratings with a spatially varying fill fraction using a simple two-step exposure process. The fir…
7 kinds of Coolmax fibers blended with regenerated cellulose fibers were chosen. Static moisture transfer and moisture comfort ability were tested and analyzed. The regenerated cellulose fibers were pearl fiber, tencel, modal, especially the pearl fiber was a creative cellulose fiber. The experimental contained wickin…
In this work, current leakage of the micro-tubular cells with a 10-µm Ce0.9Gd0.1O1.95 (GDC) electrolyte based on cathode- and anode-supported configurations was investigated at 500 and 550°C. It was found that the open circuit voltage (VOC) of the GDC membrane cell greatly corresponds to the cell structure, particular…
The crystal structure of hexagonal (h)-BaTi0.85Ho0.15O2.925 has been determined using neutron powder diffraction data. The structure is derived from that of h-BaTiO3 and contains Ho3+, the largest cation known to be accommodated by the B site in h-BaTiO3. Ti and Ho are disordered over the B1 octahedral sites and the s…
The effects of uniform and gradient magnetic fields on gravity segregation in Al–5wt%Cu and Al–10wt%Mg alloys are investigated. The results show that high magnetic fields can be used to control the solute distribution and thus control gravity segregation caused by the difference of physical properties such as density…
Mineralogical and chemical analyses of three textural varieties of pyrophyllite samples collected from Baliadihi mine of Keonjhar district, Orissa, India are investigated. Mineralogically they consist of quartz, pyrophyllite, altered feldspar as major minerals and muscovite, chlorite, tourmaline, hematite etc. as mino…
Poly (vinyl chloride) (PVC) and dioctyl phthalate (DOP) plasticizer were mixed with small amounts (1-10phr) of a layered silicate nanoclay consisting of 83.3% of montmorillonite and 16.7% of kaolinite to obtain PVC-based nanocomposites. The thermalstability of obtained products was characterized by thermal analysis us…
The influence of frozen storage conditions (temperature and relative humidity) on water vapor permeability coefficients (WVPC), mechanical properties, color, transparency, thickness and moisture content of chitosan films were evaluated after 20 and 40 days of storage. Chitosan films (2% w/v) were prepared by casting u…
stabilize the glass network. (100 – y)TeO2–yNb2O5 (y = 3–20 mol %) glasses were prepared, the crystallization behaviour and their network structural evolution were studied by means of differential thermal analysis (DTA), X-ray diffraction (XRD) and Fourier transform infrared spectra (FT-IR). The results show that the…