Materials Literature
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Iron(II) poly(pyrazolyl)borate complexes have been investigated to determine the impact of substituent effects, intramolecular ligand distortions, and intermolecular supramolecular structures on the spin-state crossover (SCO) behavior. The molecular structure of Fe[HB(3,4,5-Me3pz)3]2 (pz = pyrazolyl ring), a complex k…
Laponite clay was modified with combinations of organic ammonium surfactant and/or covalently bound poly(methyl methacrylate) (PMMA). Two polymer attachment methods were explored, one through reaction of a methacrylate compound with the clay's silanol group followed by in situ free-radical polymerization of methyl met…
Digital woven textiles are one of the latest research areas of digital textiles. The key of research on design of digital woven fabrics lies in structural design. Nowadays, the application of digital design technology has fundamentally changed the concept of structural design of woven fabric, giving rise to design met…
We present an atomic-level criterion for material stability in an atomic system. The criterion draws on the strong ellipticity condition in continuum elasticity theory; however, it is formulated directly in terms of atomic potential without resorting to the continuum concepts. Since the criterion is based on local ene…
A series of styrene-butadiene-rubber (SBR) composites have been vulcanized with different weight ratios of general purpose furnace carbon black, viz., 10, 30, 50, 70, and 90%. The compounded SBR composites have been characterized for physicomechanical properties, such as surface hardness, tensile strength, percentage…
Potassium (K) deficiency is emerging in intensively cropped soils of Kenya, but the magnitude of the problem has not been determined. This study was conducted to ascertain the possibilities of mapping K-deficient soils by the use of existing soil and climatic databases and validate the developed map. Mapping was done…
Nd8.1Dy0.9Fe76.95Co8.55B5.5 nanocomposite magnets annealed with and without a 10 T magnetic field were investigated in this article. The ribbons with coexisting amorphous and crystalline phases were selected to do this study. The results of Mössbauer spectroscopy revealed that the content of α-Fe increased when anneal…
In this work, we report a systematic study of the oxygen nonstoichiometry, high-temperature thermodynamics, and transport properties of the perovskite-related mixed conductor Sr 3 FeMO 6+ δ (M = Co, Ni). Thermogravimetry was used to determine the oxygen content change (6+δ) as a function of temperature ( T ) and equil…
The influence of partial fluorination on the lithographic performance of photoresists based on (meth)acrylate terpolymers containing polyhedral oligomeric silsesquioxane (POSS) pendant groups is investigated in bilayer schemes for 193 nm lithography. For the first time the capability of POSS-functionalized resists for…
For more than a decade, Tissue Engineering has been devoted to the reporting and discussion of scientific advances in the interdisciplinary field of tissue engineering. In this study, 779 original articles published in the journal since its inception were analyzed and classified according to different attributes, such…
We report on the magnetic properties of epitaxial La0.7Ba0.3MnO3 and La0.7Sr0.3MnO3 films on Si (100) and Si (111) substrates using SrTiO3 template layer, which demonstrate magnetic and electrical properties at and above room temperature. The magnetization data show magnetic transition and magnetic hysteresis at and a…
Abstract In reverse micelle systems, a large enhancement of the oxidation ability of dilute nitric acid was discovered, and its oxidation mechanism was explored. The Br− ion in the surfactant, CTAB, was oxidized to Br2 (or Br3−) in the CHCl3/CTAB/H2O reverse micelle system with W = 1.0–4.0 by diluted nitric acid (0.25…
This paper elucidates the effects of nucleating agents on the foaming behavior of polypropylene (PP) foams blown with butane in extrusion. The cell density was controlled by varying the talc content, and foam expansion was observed at a fixed blowing-agent content while varying the melt and die temperatures. As observ…
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The near-neutral pH environmentally assisted cracking (EAC) initiation and propagation behavior of X70 pipeline steel was investigated in NS4 solution deaerated with N2/5% carbon dioxide (CO2) under the low-frequency cyclic load. The test results show that an increase in the applied stress level promotes the crack ini…
It is well known that the cubic pyrochlore Bi1.5ZnNb1.5O7 exhibits higher permittivity and dielectric loss than monoclinic Bi2Zn2∕3Nb4∕3O7 due to structural disorder in the A sites of Bi1.5ZnNb1.5O7. We have studied systematically the impact of the ion substitution in the A site of monoclinic Bi2Zn2∕3Nb4∕3O7 on the st…
The brittle fracture (BF) surface of a 500 kV composite insulator was analyzed. It was operated for 6 years. Chemical compositions on the field failed BF surface were examined by X-ray fluorescence spectrum and FTIR spectroscopy. Test results showed that the chemical functional groups NO3-, NO2-, together with SO42-,…
A future fusion power plant will confine very hot ionised gas or ‘plasma’ containing the hydrogen isotopes deuterium and tritium in a toroidal magnetic chamber (or ‘tokamak'). The energy from the resulting fusion reactions will be released as energetic α particles and neutrons. The solid material lining of the inner w…
A minimal sequence from natural silks, the tetrapeptide GAGA, has been used as inspiration for the design of a new organogelator. Gels were obtained in several organic solvents, and their microscopic aspects were studied by transmission and cryo-scanning electron microscopies (TEM and cryo-SEM). FT-IR spectroscopy, ci…
Passivation of 304 and 316 stainless steels in various acid solutions was studied as a function of exposure time and acid concentration. Nitric acid, citric acid, and the commercial Citrisurf (a commercial citric acid–based passivating solution, Stellar Solutions, USA) were compared. The materials were studied by low‐…