Materials Literature
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This study investigated that epoxidized soybean oil (ESO) was blended as plasticizer with poly (lactic acid) (PLA) and its effects on the melt rheological properties, such as melt flow index, apparent shear viscosity, and melt strength of the blends. PLA was blended by the twin-screw plastic extruder at five mass frac…
We have designed and synthesised a series of modular, mesogenic complexes based on anthracene-2,6-disulfonate and trialkoxybenzyl-functionalised imidazolium cations. Each complex contains a central, rigid, dianionic anthracene core and two flexible monocations bearing paraffin chains anchored on imidazolium rings. Ant…
This paper describes an experimental study on field emission characteristics of individual graphene layers for vacuum nanoelectronics. Graphene layers were prepared by mechanical exfoliation from a highly oriented pyrolyzed graphite block and placed on an insulating substrate, with the resulting field emission behavio…
The crystal-fields causing $|J>$ electron states splittings of the same second moment $σ^{2}$ can produce different total splittings $ΔE$ magnitudes. Based on the numerical data on crystal-field splittings for the representative sets of crystal-field Hamiltonians ${\cal H}_{\rm CF}=\sum_{k}\sum_{q}B_{kq}C_{q}^{(k)}$ w…
Resonant magnetic x-ray diffraction experiments were carried out on the stacked triangular lattice antiferromagnet GdPd2Al3. The experiments revealed an expected initial collinear c-axis order at TN1 followed by an additional in-plane order at TN2, while at the same time we found that the ground state is a helically o…
Carbon-encapsulated Fe nanoparticles were synthesized by a modified arc plasma method using methane and starch as carbon sources, respectively. The particles were characterized in detail by transmission electron microscope and X-ray powder diffraction. They are somewhat spherical in shape and the coating layers of the…
Abstract In‐situ polymerisation of acrylonitrile as well as a DMF solution‐phase impregnation of polyacrylonitrile, PAN, in porous aluminium oxide templates (PAOX) to synthesise 2D arranged carbon nanotubes with diameters in the range of 40–200 nm were studied. The preparation of graphitised carbon tubes from polyacry…
Abstract Solution Combustion Synthesis (SCS) and ConventionalCeramic Process (CCP) were applied for the preparation of magnesium pyroborate (Mg 2 B 2 O 5 ) from Mg(NO 3 ) 2 · 6H 2 O and H 3 BO 3 . Structural and morphological properties of the products were comparatively examined by XRD and FT‐IR spectroscopic measure…
The package level stress-induced voiding (SIV) test of Cu dual-damascene line-via structures is performed.Two different dielectrics, undoped silica glass (USG) and carbon doped oxide (CDO), are used in this work.After 1344 h of high temperature storage test, the resistance drift of USG interconnects is found to be muc…
Ein cyclischer Komplex aus drei Calixaren-Bismerocyanin-Konjugaten entsteht durch Paarung der Chromophore (siehe Bild). Die Bildung der Trimere wird mit einem einfachen mathematischen Modell beschrieben, und das Potenzial der Aggregation von dipolaren Merocyanin-Farbstoffen als gerichtetes und spezifisches supramoleku…
Abstract Analytical derivation of electronic band gap of Single Walled Carbon Nanotube (SWCNT) under a small percent of uniaxial and torsional strains is in this paper. Our approach is based on a kind of π-Tight Binding (π-TB) approximation which includes interactions of the second and the third neighbors of each carb…
Abstract A self‐assembled lamellar‐within‐lamellar structure of a side chain liquid crystalline diblock copolymer was shear aligned to induce overall alignment and to direct the smectic layer orientation within the copolymer lamellae. The copolymer consisted of a polystyrene block and a poly(methyl methacrylate) block…
Mullitized porous oxidation‐bonded SiC (OBSC) ceramics were fabricated with and without preheat‐treated aluminosilicate by an in situ reaction‐bonding process. The effects of the preheat‐treated aluminosilicate on the phase development, microstructure, and mechanical properties of porous SiC ceramics were investigated…
Doped lanthanum chromites are investigated as ceramic interconnect materials to be used in high‐temperature solid oxide fuel cells (SOFCs). In this work, a La 0.80 Sr 0.20 Cr 0.92 Co 0.08 O 3 powder was produced by combustion synthesis and characterized in terms of phases and crystalline structure, thermal evolution,…
Abstract Mixed‐metal tert ‐butoxide, [CoGa 2 (O t Bu) 8 ], was employed in the chemical vapor deposition (CVD) and sol‐gel processes to obtain thin films and nanoparticles of spinel CoGa 2 O 4 phase, respectively. The appropriate Co:Ga ratio and intact vaporization (115–120 °C / 10 –2 Torr) of the molecular source pro…
Zwischen den Schichten: Ein neuartiges Hybridmaterial (siehe Bild) wurde durch die Interkalation eines difunktionellen Titanosilsesquioxans in synthetisches Natriumsaponit erhalten. Ein Nanokomposit aus einer Polystyrolmatrix und dem Hybrid als Additiv weist verbesserte thermooxidative Eigenschaften auf.
In polystyrene-block-poly(ethylene oxide) thin films, microphase-separated brushes on the square platelets can be obtained via fast solvent evaporation by controlling the tethering density (0.08 < σ < 0.11). The tethering density of the brushes is proportional to the thickness of the PEO crystal and increases with inc…
Abstract The arsenite mineral finnemanite Pb 5 (As 3+ O 3 ) 3 Cl has been studied by Raman spectroscopy. The most intense Raman band at 871 cm −1 is assigned to the ν 1 (AsO 3 ) 3 − symmetric stretching vibration. Three Raman bands at 898, 908 and 947 cm −1 are assigned to the ν 3 (AsO 3 ) 3− antisymmetric stretching…
We have successfully grown a new nonlinear optical crystal, RbBe2BO3F2 (RBBF), which belongs to the group of borate-based nonlinear optical crystals. Its refractive indices in the visible spectral region and type I phase-matching angles from the deep ultraviolet to the near infrared have been determined. Based on the…
Abstract A series of colloidal CdS/CdSe heteronanoparticles are studied by Resonant Raman spectroscopy. The Raman‐active phonons of both CdS‐core and CdSe‐shell are monitored upon a gradual increase of the shell thickness. Noticeable differences between the Raman spectra taken at different excitation wavelengths are o…