Materials Literature
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A general collective orthogonal basis combining the zero-phonon and one-phonon excitations in the quadrupole and octupole modes together with rotational motion is constructed in order to allow diagonalization of quadrupole–octupole–rotational collective Hamiltonians in the future. Such a collective approach would enab…
Abstract Non‐volatiles flash memories embedding nanocrystals are promising devices. These memories are made of semiconducting or metallic nanostructures inserted in an insulating matrix. SiO2, traditionally used as an insulator, is gradually replaced by high‐dielectric materials called “high‐k” oxides, to reduce leaka…
Abstract Substrates of II‐VI semiconductor compounds may be widely used in fabrication of nanoporous matrices (NM), which give the possibility to obtain nanowires and nanotubes of various materials with good application prospects in various fields. The easiest and cost‐effective method to obtain nanoporous matrices is…
The magnetic switching behavior was measured for granular oxide media containing an exchange control layer (ECL). Investigations of the switching behavior show that the initial minor loop slope represents the degree of incoherent switching in the film. Multilayered granular oxide media with different inter-granular co…
Abstract In the present research die swell phenomenon is investigated for the viscoelastic polymer melts both experimentally and by developing a mathematical model in a circular die for high impact polystyrenes (HIPS), high density polyethylene (HDPE), low density polyethylene (LDPE) and linear low density polyethylen…
The deposition of alkaline earths onto Ge(100) surfaces leads to well-ordered arrays of narrow trenches and elongated plateaus that extend for thousands of angstroms. Using scanning tunneling microscopy (STM) in conjunction with density functional theory (DFT), the atomic scale details of these nanostructures are reve…
Abstract Zwei stabile, kernmodifizierte Rubyrine mit einer oder zwei Diethienylethen(DTE)‐Einheiten (1 und 2) wurden hergestellt. Das Rubyrin 1 mit einer “geschlossenen” DTE‐Einheit zeigt 26 π‐Aromatizität, während bei Einführung einer “offenen” DTE‐Einheit in den Makrocyclus 2 dieser sich als nichtaromatische Verbind…
This paper presents the formation of graphene and its application to hydrogen sensors. In this work, the graphene was synthesized by annealing process of 3 C - SiC thin films with Ni transition layer. The Ni film was coated on a 3 C - SiC layer grown thermal oxided Si substrates and used extracts of the substrate's ca…
Cu/Sn/Zn stacked layers were electrodeposited and subsequently annealed in a tube furnace in elemental sulfur and selenium at 570C. Cyclic voltammogram of Sn-salt in ionic liquid was recorded. Thin films were characterized by inductively coupled plasma-mass spectrometry (ICP-MS), Auger electron spectroscopy (AES) and…
An unexpected and previously unknown resorcinarene mono-crown with a fused benzofuran moiety in its macrocyclic core was obtained as a byproduct from a bridging reaction of tetramethoxy resorcinarene with tetraethylene glycol ditosylate. The formation of the fused benzofuran moiety in the resorcinarene macrocycle resu…
Electrically controlled transmissive color switches enabling high brightness were demonstrated, by tapping into a polarization-selective nanostructured spectral filter, which is stacked on a liquid crystal-based polarization switch. The spectral filters, based on one-dimensional subwavelength metallic gratings, functi…
Purpose – The purpose of this study is to present reports on fabrication of silicon (Si) nanowires (NWs). The study consists of microwire formation on silicon-on-insulator (SOI) that was fabricated using a top-down approach which involved conventional photolithography coupled with shallow anisotropic etching. Design/m…
ABSTRACT Few solvents are capable of dissolving polyketones (PKs). 1,1,1,3,3,3‐Hexafluoro‐2‐propanol (hexafluoroisopropanol, HFIP) is a better solvent than trifluoroethanol andm‐cresol. When HFIP was evaporated from a PK/HFIP solution, a porous cast‐film with a microparticle structure was formed because the isotactic…
Rotational temperature profiles of H2 in a microwave plasma chemical vapor deposition (MPCVD) reactor were measured via coherent anti-Stokes Raman scattering (CARS) spectroscopy. The temperature was found to increase with reactor pressure, plasma generator power, and distance from the deposition surface. At 10 Torr, t…
The effects of surface-functionalized and pristine multiwall carbon nanotubes (MWCNT) on the bulk and adhesion properties of silicone nanocomposites were investigated. The MWCNTs surface functionalization was carried out by silanization of methacryloxy or vinyl-based silanes. The nanocomposites were prepared using sol…
The purpose of this research is to study the effect of Se doping content on the improvement in thermoelectric properties of Bi 2 Te 3-x Se x bulk materials produced by high-pressure role. The Bi 2 Te 3-x Se x bulk materials can be successfully synthesized within 30 min due to high-pressure role, which significantly sh…
The desalination behavior of calcined hydrotalcite (CHT) from seawater used to treat seawater that was subsequently subjected to zeolite treatment prior to application of irrigation water was investigated. The results revealed that CHT removed Cl–, SO42–, Mg2+ and Ca2+ from seawater, but that Na+ and K+ were almost un…
Purpose – The purpose of this study was to investigate the corrosion of rusted carbon steel in dilute NaCl solution, with the purpose of exploring the effect of the rust layer on metal corrosion and establishing a corrosion model for rusted iron. Design/methodology/approach – The corrosion behavior of rusted carbon st…
In this study, poly(2,3‐dimethylaniline)/polyaniline (P(2,3‐DMA)/PANI) composite was prepared by in situ polymerization of aniline on the surface of P(2,3‐DMA) particles in hydrochloric acid solution. Fourier transform infrared spectra and X‐ray diffraction results of the composites indicated that P(2,3‐DMA) was succe…
Purpose – The purpose of this investigation was to evaluate the protective ability of 2-amino-N-octadecylacetamide (AOA) and 2-amino-N-octadecyl-3-(4-hydroxyphenyl) propionamide (AOHP) as corrosion inhibitors for N80 steel in 15 per cent hydrochloric acid (HCl), which may find application as eco-friendly corrosion inh…