Materials Literature
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Abstract The joint research project Particle Processing and Characterization was started in March 2003 under the EUROPA ERG1 Arrangement, with the objective to study the influence of crystallization and processing techniques on particle quality and its implication for the formulation of PBX with IM behavior. As sensit…
A simple, accurate and rapid colorimetric method using ninhydrin reagent was developed for the determination of polyamidoamine (PAMAM) dendrimers (G4, G5, and G6) and their derivates in aqueous medium. This method was based on the interaction of the primary amino group of PAMAM dendrimers with ninhydrin reagent to for…
This article reports on the imaging of the surface plasmon fields of lithographically designed micrometre-sized gold structures. We investigate rings made of disk-shaped particles and individual crescent-shaped particles. These structures are imaged with two techniques, dark field imaging of elastically scattered ligh…
In this paper, molecular dynamic simulations of crack propagation in body centre cubic (bcc) single crystal have been performed. The crack propagation behaviors on two different slip planes ({1 1 0} and {2 1 1}) have been investigated. A self-adaptive time step algorithm has been proposed to increase the stability of…
A mathematical model taking into account the branching of a polymer is developed for the synthesis of diene rubber with a neodymium-based catalytic system (NBCS) in a cascade of continuous reactors. The model is used to study the main branching characteristics of NBCS diene rubber. Relations for calculating the averag…
During the mid 18th century, the standard British Army issue weapon was the Brown Bess Musket. There are various accounts of the performance of this early form of firearm and its tactical deployment (e.g. Hanger 1816). Using a technical replica of the Brown Bess, range trials and computer modelling have been used to a…
Water decoction of Calotropis procera (Ait.) R.Br. is reported as a purulent wound healer in Indian System of Medicine — Ayurveda. Antibacterial activity of solvent fractions derived from the crude water decoction of C. procera against pathogenic and non-pathogenic bacterial strains has been evaluated. Dried apical tw…
Based on the general theory of dislocation and kink, we have constructed the three kink models corresponding to the 1/2 〈111〉{011} and 1/2 〈111〉{112} edge dislocations (EDs) in bcc Fe using the molecular dynamics method. We found that the geometric structure of a kink depends on the type of ED and the structural energ…
The mechanical properties and strain rate sensitivity of nanocrystalline nickel was studied as a function of grain size at different temperatures in tensile tests and with a nanoindenter in order to examine the different deformation mechanisms of nanocrystalline materials. The effect of lateral boundaries and hydrogen…
Density functional theory is used to investigate the surface structures and the energies of two possible terminated LaAlO3 (001) surfaces with oxygen vacancies, i.e. LaO- and AlO 2 -terminated surfaces. The large displacements of ions, deviated from their crystalline sites, can lead to the formation of the surface rum…
The rigid polyurethane-polyisocyanurate (PUR-PIR) foams containing 5-25 wt. % of the fillers (aluminum hydroxide, melamine, starch, talc, chalk or borax) were the subjects of investigations. A PUR-PIR foam without the filler was a standard control sample. Thirteen functional properties of the products were estimated,…
Based on the phenomenological Landau–Devonshire thermodynamic theory, the film thickness dependence of electrocaloric effect in epitaxial Ba0.6Sr0.4TiO3 thin films is investigated. Theoretical analysis shows that the Ba0.6Sr0.4TiO3 thin films grown on LaAlO3 and MgO substrates have the giant electrocaloric effect at r…
The temperature dependences of saturated vapor pressures of hexadecafluorinated zinc and vanadyl phthalocyanines (MPcF 16 , M = Zn, VO) and their unsubstituted analogues were studied by the Knudsen effusion method. The temperature dependences of saturated vapor pressures were used to calculate the thermodynamic parame…
The collective plasmon resonances in a monolayer formed by metal or metal-dielectric nanoparticles with dipole or quadrupole single-particle resonances are theoretically and experimentally studied. The extinction, scattering, and absorption spectra are calculated using an exact many-particle solution for the system of…
Abstract The aim of the present study was to investigate the suitability of the melt sonocrystallization technique to modify the undesirable properties of the nonsteroidal anti‐inflammatory drug (NSAID), flurbiprofen (FBP), e.g., poor flowability, solubility, and dissolution rate and, consequently, poor bioavailabilit…
Thin films of nickel phthalocyanine (NiPc) are deposited on an as-received and on a mildly sputtered PEDOT:PSS film, spin coated on fluorine tin oxide coated glass. The electronic properties of the PEDOT:PSS surface, both as loaded and upon thermal treatment and sputtering, as well as of the interfaces between NiPc an…
Development of the lignocellulosic‐biomass‐based biorefinery for making transportation fuels requires the production of valuable byproducts, minimizing the chemical consumables, and efficient water recovery and reuse. Our focus is on a liquid stream containing a variety of soluble lignin species and alkalinity that is…
X-ray photoelectron spectroscopy (XPS) was used to study the natural outside aging of industrial low density polyethylene (LDPE) under the influence of one year round weather. Two types of LDPE were studied. The first type was LDPE without additives and the second type was doped with 4% of hindered amine light stabili…
Abstract In this paper, maleic anhydride is directly coated on the surface of SrAl 2 O 4 : Eu 2+ , Dy 3+ (SAO‐ED) phosphors by an interfacial coordination chemistry method. Fourier transform infrared spectroscopy (FTIR), X‐ray photoelectron spectra (XPS), X‐ray diffraction (XRD), and scanning electron microscopy (SEM)…
Samples of lead zirconate titanate Pb ( Zr 0.53 Ti 0.47 ) O 3 with europium ( Eu ) doping concentration of 0, 0.5, 1.5, 3 mol% (PEZT) were fabricated by sol–gel method. XRD spectra showed that the introduction of Eu into PZT favored the growth of (100) orientation. With 3% Eu content, the preferential orientation of t…