Materials Literature
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In this paper, the effect of the sintering temperature on the low-field dielectric behavior of nonstoichiometric Pb0.95La0.05(Fe2/3W1/3)0.65Ti0.35O3 relaxor ferroelectrics is investigated. The x-ray patterns and the scanning electron microscope images are used to detect the pyrochlore phase and the perovskite structur…
Glass fibre reinforced unsaturated polyester composites were subjected to water immersion tests in order to study its water absorption behaviour its effects on mechanical properties. Water absorption tests were conducted by immersing composite specimens into three different environmental conditions included distilled…
Soy protein composites films (SF) have been prepared using soy protein isolate (SPI), salicylic acid (SA) and glycerol as a plasticizer. To prepare water resistant soy protein composites films (SF-B), 2, 2-diphenyl-2-hydroxyethanoic acid (DPHEAc) was used. Different amounts of SA were added in both SF and SF-B films.…
Boron carbonitride films of various compositions have been grown by plasma-enhanced chemical vapor deposition using N -trimethylborazine as a single-source precursor and nitrogen as a plasma gas and an additional nitrogen source. Experiments were performed at various deposition temperatures and rf powers. The films we…
It is a truth universally acknowledged that a Heusler compound in possession of a good order must be in want of a high spin polarization. In the present work, we investigated the spin polarization of the Heusler compound Co2FeAl by spin polarized tunneling through a MgO barrier into a superconducting Al–Si electrode.…
Hydroxyapatite nanoparticles were obtained in the course of reaction in microemulsion system stabilized by surfactant (sodium bis-2-ethylhexylsulfosuccinate). By the methods of X-ray phase analysis, IR spectroscopy, elemental analysis, and electron microscopy the presence of crystals in the samples of hydroxyapatite a…
The human NAD-dependent isocitrate dehydrogenase (IDH) is a heterotetrameric mitochondrial enzyme with 2alpha:1beta:1gamma subunit ratio. The three subunits share 40-52% identity in amino acid sequence and each includes a tyrosine in a comparable position: alphaY126, betaY137, and gammaY135. To study the role of the c…
Kapundaite, ideally (Na,Ca) 2 Fe 4 3+ (PO 4 ) 4 (OH) 3 ∙5H 2 O, is a new mineral (IMA2009-047) from Toms phosphate quarry, Kapunda, South Australia, Australia. The new mineral occurs as cavernous aggregates of fibers up to several centimeters across, associated with leucophosphite, natrodufrenite, and meurigite-Na cry…
Gold nanoparticles were synthesized with various discharge durations using solution plasma processing (SPP), and the effects of the discharge duration between 120 and 900?s on the size and shape of the gold nanoparticles were investigated using UV?Vis NIR spectrophotometry and transmission electron microscopy (TEM). T…
A calcium strontium barium niobate (Ca0.28Ba0.72)0.25(Sr0.60Ba0.40)0.75Nb2O6 (CSBN25) single crystal has been grown using the Czochralski technique. The point group and space group of CSBN25 were determined by x-ray powder diffraction analysis to be tetragonal 4 mm and P4bm, respectively. The complete set of dielectri…
Small-angle neutron scattering with polarization analysis reveals that Fe3O4 nanoparticles with 90 Å diameters have ferrimagnetic moments significantly reduced from that of bulk Fe3O4 at 10 K, nominal saturation. Combined with previous results for an equivalent applied field at 200 K, a core-disordered shell picture o…
The collapse of transient bubble clouds near a solid surface was investigated to test a scheme for mitigation of cavitation-induced damage. The target was a porous ceramic disk through which air could be forced. Transient cavitation bubbles were created using a shock-wave lithotripter focused on the surface of the dis…
The conductivity and ion and proton transfer numbers were measured in La1 − x Sr x Sc1 − y Mg y O3 − α system (x = y = 0.10–0.20). The partial conductivities (total ion, proton, oxygen, hole) and their effective activation energies were calculated. The measurements were carried out in air with respect to humidity (pH2…
Samples of the CAB-1 alloy in the initial state and irradiated with fast neutrons at an fluence of 2 × 10 21 neutrons/cm 2 have been studied by small-angle neutron scattering. It has been demonstrated that the observed large scattering cross sections are associated with the presence of nanosized pores with radii R ∼ 5…
Single-phase samples of A 3 TeO 6 (A—Mn, Co, Ni) oxides and solid solutions in a (Mn 1-x B x ) 3 TeO 6 , B—Co, Cd system belonging to the structural series of magnesium orthotellurate were obtained by solid-phase synthesis. The temperature behavior of the ceramics’ magnetization, thermal capacity, and dielectric prope…
The surface of palm kernel was modified by acrylic acid (AA). Low density polyethylene (LDPE) was filled by palm kernel shell at various 0, 10, 20, 30 and 40 php. The effect of AA as a coupling agent on LDPE/PKS biocomposites on tensile properties and morphology was investigated. The results show that the increasing o…
Abstract The influence of alloying elements, including rhenium and ruthenium, on the physicochemical and structural parameters of single crystal nickel-base superalloys has been analyzed. The results were used in computer designing of a single crystal nickel-base superalloy containing rhenium and ruthenium. The optimi…
Abstract We describe here a strategy for the synthesis of HyperMacs – long‐chain branched analogues of hyperbranched polymers. The building blocks for HyperMacs, AB 2 macromonomers, are synthesized by living anionic polymerization and, as such, are well‐defined in terms of molecular weight (MW) and polydispersity. Siz…
The influence of Pr content on structure, magnetic properties, and magnetic entropy changes of La1−xPrxFe11.44Si1.56 was investigated. X-ray diffraction analysis showed that the 1:13 phase with cubic NaZn13-type structure was obtained by a short time annealing (1300 K and 3 h) in melt-spun ribbons, which in contrast r…
Using the highly precise full-potential linearized augmented plane-wave method, magnetostriction of ferromagnetic shape memory alloy Fe3Pt in the cubic L12 structure is investigated. Being consistent with experiments, the giant magnetostrictive coefficient (λ001) of −1050 ppm was calculated from strain-induced magneto…