Materials Literature
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The purpose of this paper is to compare the structure and the mechanical properties of several model mixtures exclusively constituted of pure linear alkanes so as to better understand the conditions in which disorder appears within real systems. The molar distribution of all the studied mixtures is of “normal logarith…
Abstract Polycrystalline spherulites of L‐glutamic acid have been crystallized by pH‐shift precipitation from stirred aqueous solutions. The time dependent behaviour of the spherulites has been studied during the crystallization process and batch filtration tests have been performed. It has been shown that the FBRM me…
A new type of nanoporous carbon material by pyrolysis of styrene-acrylonitrile random copolymer (SAN)/multiwalled carbon nanotube (MWCNT) composite was prepared. The thermal decomposable styrene component of the SAN could act as a soft template to form abundant nanopores with the help of the pristine nanotubular frame…
X-ray microtomography was used to evaluate the inhomogeneous characteristics of newly-developed Al–Zn–Mg foam. Using the synchrotron K-edge subtraction technique, a highly heterogeneous distribution of Zn was quantified three-dimensionally (3D) in the cell wall of as-cast foam. Time-resolved analysis of the concentrat…
In this work the use of different ZnO nanostructures has been studied to assess the effect of morphology and surface modification on the performance of photovoltaic devices. ZnO nanostructures (nanoparticles, nanowires and nanofibres) have been produced by different techniques, and surface modified with pyrene-1-carbo…
Considering the electron–phonon scattering mechanisms as well as the number of conduction channels, the long single-walled carbon nanotube (SWCNT) has larger temperature coefficient of resistivity than that of the short SWCNT or that of the multi-walled carbon nanotube (CNT). A tens of micrometres length, suspended SW…
At last meeting, we reported a new type of surface-enhanced Raman Spectroscopy (SERS) substrates based on metal (Au or Ag) coated Si nanocones fabricated by a Bosch etching process. The substrate showed reliable SERS performance with an analytical enhancement factor greater than 6 × 10<sup>7</sup> for trans-1,2-…
The high level of accumulated expertise by ULIS and CEA/LETI on uncooled microbolometers made from amorphous silicon enables ULIS to develop VGA IRFPA formats with 17μm pixel-pitch to build up the currently available product catalog. This detector keeps all the innovations developed on the 25 μm pixel-pitch…
The book serves as educational material for students studying the subjects of building materials, construction material, materials science, building materials and items, ceramic materials, concrete and mortar technology, architectural material science. It contains basic theoretical material connected with different ki…
Using linear-response density-functional theory, we obtain the magnetic interactions in several iron pnictides. The ground state has been found to be non-collinear in FeSe, with a large continuum of nearly degenerate states lying very close to the magnetic 'striped' structure. The presence of non-collinearity also see…
This work addresses the advantages of the ultrasound stimulation method over the conventional heating method for the preparation of nanosized γ-Al 2 O 3 . The γ-Al 2 O 3 obtained by calcination of boehmite at 600 °C is derived from the inexpensive aluminum chloride salt by the precipitation route. Thermal evolution, p…
The same poly(oxyalkylene)−amidoacids (POA−amidoacid) were incorporated into two different types of ionic clays, anionic layered-double-hydroxides (Mg−Al LDH), and cationic montmorillonite (MMT). Conventionally, the intercalation is an ionic exchange reaction, i.e. anionic organic salts for LDH and cationic salts for…
Abstract The synthesis and optical properties of a highly soluble (>200 mg mL −1 ) and highly fluorescent ( Φ F in film = 0.64) 1,2,4‐linking hyperbranched poly(arylenevinylene) (1,2,4‐ hb ‐PAV) prepared via Wittig reaction of A 3 (biphenyl‐tricarbaldehyde) and B 2 (phosphonium salt) monomers is reported. The molec…
A Cu2+-doped 2, 4-dichlorophenol (2, 4-DCP) molecularly imprinted TiO2–SiO2 nanocomposite catalyst was prepared by molecular imprinting technique in combination with sol–gel methods. The prepared material was characterised by X-ray diffraction (XRD), infrared spectroscopy (IR), scanning electron microscopy (SEM), tran…
Protonex is a leading provider of advanced fuel cell power systems for portable, remote and mobile applications. Protonex has been working on optimizing longer endurance of PEM fuel cell systems for applications such as small UAVs and UGVs. These applications require power systems with high specific energy (Wh/kg). Wi…
In this study, in situ surface-enhanced Raman scattering (SERS) decoding was demonstrated in microfluidic chips using novel thin micro gold shells modified with Raman tags. The micro gold shells were fabricated using electroless gold plating on PMMA beads with diameter of 15 microm. These shells were sophisticatedly o…
Angle dispersive X-ray diffraction and Raman scattering studies have been carried out on Sr2MgWO6 up to ∼28 and ∼40 GPa, respectively. This compound is found to be structurally stable up to the highest pressure in this study. Bulk modulus of ambient phase is determined to be 128 ± 3.9 GPa which is in close agreement w…
The tetrabutylammonium (TBA(+)) salts of square-planar monoanionic gold complexes of the unsymmetrically substituted Ar,H-edt(2-) 1,2-dithiolene ligands (Ar,H-edt(2-)=arylethylene-1,2-dithiolato; Ar=phenyl (1(-)), 2-naphthyl (2(-)), and 1-pyrenyl (3(-))) were synthesized and characterized by spectroscopic and electroc…
Abstract We describe the development of phase morphology in polypropylene (PP)/ethylene–butene copolymer (EBM) blends in both extrusion through dies and in subsequent melt spinning to form filaments. This immiscible blend has a very low interfacial tension around 0.69 dynes/cm. In the die extrusion process, at low ext…
This research was focused on the study of delamination phenomena in metal–polymer laminates used in containers. The selected material was an electrolytic chromium coated steel (ECCS), protected by polyethylene teraphthalate (PET). The study employed an acetic acetate medium, which has been proved to degrade the PET co…