Materials Literature
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A modified cathodic disbondment (CD) test was carried out over a period of 14 months using 13 different pipeline coatings. During the test the current was recorded every 4 h. Certain types of coatings developed blisters after 60 days. The formation of the blisters resulted in characteristic spikes in the current. Othe…
Abstract We report the sonophysically‐exfoliated methods access to the preparation of homogeneous‐free multi‐walled carbon nanotubes (MWCNTs) in water solution. Highly stable, uniform, individual MWCNTs are entirely performed through sodium dodecylsulfate surfactants by means of a tip sinicator. HRTEM images show that…
The waterborne polyurethane (PU) prepolymer was prepared based on the polyester polyol (N220), isophorone diisocyanate (IPDI), and dimethylol propionic acid (DMPA). The waterborne polyurethane-acrylate (PUA) dispersions were prepared with different proportions of acrylate by in situ dispersion technique. The structure…
We report aggregated nanostructure formation of water insoluble meso-tetramesitylporphyrin (MTMP) induced by hydrogen chloride (HCl) vapor on a glass plate. The formation of aggregated nanostructures of MTMP was confirmed by UV-vis, time-resolved emission spectral techniques, atomic force microscopy (AFM), and high re…
Based on density functional theory calculations including an on-site Hubbard U term, we investigate the effect of substrate-induced strain on the properties of ferrimagnetic hematite-ilmenite solid solutions and heterostructures. While the charge compensation mechanism through formation of a mixed Fe2+, Fe3+-contact l…
OBJECTIVE: The objective of this work was to explore a new modality of cell tracking that uses multifunctional nanoparticles. The tracking of transfused cells in vivo is an important step to study the therapeutic course and mechanism of cell therapeutics. BACKGROUND DATA: Several methods of cell tracking have been dev…
Northern Finland is home to a yacht builder that has become legendary among yachtsmen whose primary focus is cruising but who nevertheless crave top-notch performance. Baltic Yachts relies on high-tech composites when producing the strong yet light structures that enable it to meet their high expectations. George Mars…
Abstract By combining azide and the ( Z )‐1,1,1‐trifluoro‐4‐(quinolin‐8‐ylamino)but‐3‐en‐2‐one enaminone ligand, HL, an azido‐bridged copper(II) one dimensional polymer was synthesized in a one‐pot reaction. The solved and refined crystal structure evidenced the unusual single and asymmetric end‐to‐end coordination mo…
Oxygen is essential for many forms of life and its depletion in the body and the environment can lead to deleterious effects. Low oxygen conditions, even anoxia, are associated with eutrophication of lakes and rivers, wherein an over abundance of nutrients often caused by pollution result in excessive plant growth and…
Severe plastic deformation by equal-channel angular pressing according to the Conform schedule (ECAP-Conform) is used for the first time to produce long titanium rods in a nanostructured state. As a result of ECAP-Conform followed by drawing, the ultimate strength of Grade 4 titanium increases to 1350 MPa, and its yie…
The paper presents the results obtained in studies of the physicochemical characteristics of modified polysaccharides prepared by the catalytic oxidation of starch with molecular oxygen in an alkaline medium. The amorphous-crystalline structure of starch was partially retained after oxidation. The differential scannin…
Generally, the useful life of a rubber component is governed by its susceptibility to failure by either mechanical or chemical deterioration. There are well established laboratory tests to address the failure properties of elastomers – fracture mechanics analyses for mechanical durability and accelerated aging tests f…
The effect of 244Cm decay (T 1/2 = 18 years) on the radiation and chemical stability of the pyrochlore Gd1.935Cm0.065TiZrO7 was examined. Irradiation leads to degradation of its structure. The amorphization dose at room temperature is 4.60 × 1018 α-decay g−1 (or 0.60 displacements per atom, dpa). It is close to the co…
Epitaxial Ba(Zr0.3Ti0.7)O3 thin films were grown by radio frequency magnetron sputtering on (100) MgO substrate. Dielectric measurements at low frequencies (10 Hz–1 MHz) indicate that the material is a ferroelectric relaxor in nature. The temperature dependence of relative permittivity (εr) follows the modified Curie–…
A reaction of iron nitrate with magnesium salicylate and reactions of iron and cobalt chlorides with ammonium salicylate in the presence of water, methanol, DMAA, and DMF gave the trinuclear heterometallic complexes: [hexa-μ-salicylato-μ3-oxo-0.4-dimethylacetamide-2.6-aquadiiron(III)magnesium(II)] tetra(dimethylacetam…
Large-size and high-quality 0.85Pb(Zn1/3Nb2/3)O3–0.15PbTiO3 (0.85PZN-0.15PT) single crystals were grown by a modified Bridgman method using an allomeric 0.69Pb(Mg1/3Nb2/3)O3–0.31PbTiO3 single crystal as a seed. The as-grown 0.85PZN-0.15PT single crystals exhibit a tetragonal perovskite structure, which changes wholly…
In this paper, we study the thermoelectric power under strong magnetic field (TPSM) in quantum dots (QDs) of nonlinear optical, III-V, II-VI, GaP, Ge, Te, Graphite, PtSb2, zerogap, Lead Germanium Telluride, GaSb, stressed materials, Bismuth, IV-VI, II-V, Zinc and Cadmium diphosphides, Bi2Te3 and Antimony respectively.…
Triaxial braid composite materials are beginning to be used in fan cases for commercial gas turbine engines. The primary benefit for the use of composite materials is reduced weight and the associated reduction in fuel consumption. However, there are also cost benefits in some applications. This paper presents a descr…
We stereoscopically studied the angle-dependent interlayer magnetoresistance ${R}_{zz}(\ensuremath{\theta},\ensuremath{\phi})$ of the organic conductor $\ensuremath{\kappa}\text{\ensuremath{-}}{(\text{BEDT-TTF})}_{2}\text{Cu}{(\text{NCS})}_{2}$. A pressure of 7 kbar was applied to render the sample fully metallic. The…
A free-energy functional for a crystal that contains both the symmetry conserved and symmetry broken parts of the direct pair correlation function is developed. To test how accurately this free-energy functional describes the symmetry breaking first-order phase transition of freezing, we use it to investigate the crys…