Materials Literature
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Abstract When polyethylene terephthalate (PET) is stretched, it exhibits strain‐hardening properties, which are temperature and strain‐rate dependent. In this paper, two grades of PET are experimentally characterized using biaxial tests. A visco‐hyperelastic model is used to describe the stretching behavior for the po…
The objective of this study is to enhance the delivery of Doxorubicin hydrochloride to Dalton's lymphoma solid tumour through poly(butyl cyanoacrylate) (PBC) nanoparticles. Doxorubicin loaded PBC (DPBC) nanoparticles were prepared by emulsion polymerization and characterized by particle size analysis, zeta potential a…
A new application of the recently described drop coating deposition Raman (DCDR) method facilitates the segregation and independent spectral characterization of mixture components. The quality of the normal (un-enhanced) Raman spectra are significantly improved as a result of reduced spectral interference from fluores…
Thiolalkylated polyethylene glycol (PEG) ligands have been designed and synthesised for use in the manufacturing of stable water soluble gold MPCs. In addition to ongoing work on the synthesis of size and shape selective aq. (aqueous) gold nanoparticles, the effect of avidin gold nanoparticle (AGNP) ratio on biotinyla…
The photoinduced alignment of ferroelectric liquid crystals (FLCs) onto photochemically stable azo-dye films was studied. The alignment quality of FLC display cells depends mainly on the difference between the FLC surface energy and the aligning substrates surface energy; however, the structure and thickness of FLC la…
The corrosion of bare steel under an aqueous boundary layer with dissolved carbon dioxide (CO2) was modeled to investigate the effect of CO2. The model incorporated the coupled effect of CO2 diffusion, hydration, local ionic equilibria, ferrous carbonate (FeCO3) precipitation, and steel corrosion. The model was verifi…
Abstract Accurate determination of overlayer thickness on samples with curved surfaces is of growing importance, especially in connection with nanometric materials systems. In this work two simple geometries are treated; closely packed spheres, well representing powder samples, and close‐packed cylinders, modelling fi…
Abstract A GaP(001) surface treated by (NH 2 ) 2 CS/H + solution has been studied by Auger electron spectroscopy (AES) and XPS. The AES result indicates that the GaP(001) surface can be sulfurized by (NH 2 ) 2 CS/H + solution. Oxygen and nitrogen could be almost removed upon annealing at 550°C. The sulfur on the surfa…
In this work, a study of the particulate matter emitted from standard residual oil combustion and from natural gas reburning during oil combustion in a pilot scale furnace was carried out. The sizes, morphologies and chemical element distribution of particles were analyzed through scanning electron microscopy coupled…
The ferroelectric sodium-bismuth titanate Na0.5Bi0.5TiO3 (NBT) is now considered as one of the lead-free materials which could be used instead of the lead-bearing materials from the view point of environment impact. Several previous studies were focused on the preparation and properties of NBT as single crystals and c…
Abstract The present work is the first comprehensive account of the knowledge acquired from single crystals of the isotopic series M 2 Te 4 O 11 (M = La - Nd, Sm - Yb). In the crystal structure, the M 3+ cation is coordinated by eight oxygen atoms in the shape of a distorted square antiprism. Out of these polyhedra a…
This paper extends the experimental and numerical results presented previously and addresses the major criticisms raised. In addition, the most recent results are discussed. In acoustic cavitation experiments with chilled (ɛ0 °C) deuterated acetone (C 3 D 6 O), the production of tritium and 2.45 MeV neutrons [which ar…
We study the extended Hubbard model with both on-site $(U)$ and nearest neighbor $(V)$ Coulomb repulsion using the exact diagonalization method within the dynamical mean field theory. For a fixed $U$ $(U=2.0)$, the $T\text{\ensuremath{-}}n$ phase diagrams are obtained for $V=1.4$ and $V=1.2$, at which the ground state…
The use of conductive polymers as a substitute for metallic conductors and semiconductors has attracted much attention in the literature. In particular, aromatic heterocyclic polymers constitute an important class because they possess chemical and electrical stability. The properties of these polymers are promising fo…
Abstract The preparation, crystal structure and magnetic properties of the first tetrameric Co II cluster with a unique planar triangular motif, [Co 4 L 3 (H 2 O) 2 ](ClO 4 ) 2 ·2H 2 O ( 1 ), based on a carboxylic‐functionalized 1,5‐diazacyclooctane (DACO) bridging ligand [1,5‐bis(2‐carboxyethyl)‐DACO], are reported.…
Abstract PTFE surfaces have been exposed to neutral atoms and molecules, and to electrons originating from a modified RF nitrogen plasma, able to filter out the cations. The changes in surface energy of the modified polymer, determined by the water contact angle, are linearly related to the increase of the nitrogen co…
Novel Ag on TiO2 films are generated by semiconductor photocatalysis and characterized by ultraviolet-visible (UV/Vis) spectroscopy, scanning electron microscopy (SEM), and atomic force microscopy (AFM), as well as assessed for surface-enhanced Raman scattering (SERS) activity. The nature and thickness of the photodep…
Abstract Several 2- and 3-(phenylazo)pyridine derivatives were prepared. Most of their trans isomers have a large absorption band (∼2 × 104 M−1 cm−1 (1 M = 1 mol dm−3)) around 320 nm and a small absorption band (∼400 M−1 cm−1) around 450 nm. All of these compounds photoisomerize upon irradiation of the shorter (trans-…
Abstract— We studied the infrared reflectance (IR), Raman, and cathodoluminescence (CL) spectroscopic signatures and scanning electron microscope‐cathodoluminescence (SEM‐CL) images of three different types of impact glasses: Aouelloul impact glass, a Muong Nong‐type tektite, and Libyan desert glass. Both backscattere…
The oxidation behavior of SiCN–ZrO 2 fibers and SiCN at 1350°C are compared. The as‐measured parabolic rate constants for the two materials are nearly the same (15–20 × 10 −18 m 2 /s). However, after implementing a correction for the difference in the compositions, the rate constant is 13.2 × 10 −18 m 2 /s for the fib…