Materials Literature
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We have investigated the formation of embedded nanocrystals (NCs) in SiNx using Ga+ focused-ion beam irradiation of SiNx membranes, followed by rapid thermal annealing (RTA). During irradiation, redeposition is enhanced by developing side walls, leading to enhanced near-surface [Ga] and [Si]. Subsequent RTA leads to t…
We report comprehensive measurements of the magnetic, transport, and thermal properties of the Heusler-type compound Fe2+xV1-xAl, with x values near the ferromagnetic quantum critical point, xc ∼ 0.05. At T ∼ 60 K, a prominent Schottky-like anomaly appeared in the specific heat; this anomaly was correlated with a smal…
Two novel organogelators (TEG and TAG) based on tetraphenylethylene and 3,4,5-tris(dodecyloxy) benzoic acid were synthesized through ester bond and amido bond linkages, respectively. Compounds TEG and TAG were able to induce gelation in ethanol. Aggregation-induced enhanced emission was observed in these organogelator…
The p-type skutterudite compounds of ( Pr 0.25 Nd 0.75)x Fe 3 CoSb 12 (x = 0.67–0.78) have been successfully synthesized by levitation melting followed by annealing and spark plasma sintering. The thermoelectric properties have been characterized by the measurements of Seebeck coefficient, electrical conductivity and…
The functional life of a zinc oxide arrester block is largely dependent on its energy absorption capability. This capability is an important performance characteristic of a lighting arrester which leads to enhanced reliability of a surge protection system. An arrester block is usually cylindrical in shape with two fla…
Abstract The new water‐soluble palladium(II) complexes Na2{trans‐[PdCl2(mTPPMS‐κP)2]} (1), (CN4H7)Na{trans‐[PdCl2(mTPPMS‐κP)2]} (2) and the 2D polymer trans‐{Pd‐μ‐[mTPPMS‐1κP:2κO‐Na1/2(H2O)]‐μ‐[mTPPMS‐1κP:2κO′‐Na′1/2(H2O)]‐μ‐[8TTH‐1κS:2κO6–Na1/2(H2O)]‐μ‐[8TTH‐1κS:2κO6‐Na′1/2(H2O)]}n (3) {mTPPMS = Ph2P[3‐OS(O)2C6H4]–;…
We have used the ratio of the integrated intensity of graphene's Raman G peak to that of the silicon substrate's first-order optical phonon peak, accurately to determine the number of graphene layers across our molecular-beam (MB) grown graphene films. We find that these results agree well both, with those from our ow…
[μ-N,N'-Bis(pyridin-3-yl)benzene-1,4-dicarboxamide-1:2κ(2)N:N']bis{[N,N'-bis(pyridin-3-yl)benzene-1,4-dicarboxamide-κN]diiodidomercury(II)}, [Hg2I4(C18H14N4O2)3], is an S-shaped dinuclear molecule, composed of two HgI2 units and three N,N'-bis(pyridin-3-yl)benzene-1,4-dicarboxamide (L) ligands. The central L ligand is…
Zinc oxide nanoparticles were successfully synthesized using cost effective modified combustion synthesis route employing zinc nitrate hexahydrate as oxidant and palm oil derived C8 fatty alcohol as fuel in various ratios. The calcined zinc oxide exhibited hexagonal phase with wurtzite structure. The crystallite sizes…
The history of the study of fluid solidification in stagnation flow is limited to a few cases. Among these few studies, only some articles have considered the fluid viscosity and yet pressure variations along the thickness of the viscous layer have not been taken into account and the energy equation has been assumed t…
Introduction: The bactericidal activity of Ag-NPs and Au-NPs impregnated with ceftriaxone, rifampicin and vancomycin is evalauted. Results: Ag-NPs impregnated with rifampicin, vancomycin and ceftriaxone showed a respective inhibition zone of 15.0 mm, 11.3 mm and 26.0 mm to E.coli. Whereas Au-NPs impregnated with rifam…
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We propose an approach to the description of orientational phase transitions that utilizes the specific features of orientational energy and entropy. The approach is applied to building a model for nematic phases in materials with nonpolar parallelepiped-type molecules with symmetry D(2h). The model operates with comp…
Electrical apparatus in industry for use in the presence of explosive gases must be specially designed to prevent the apparatus from igniting the gas. In the case of flameproof enclosures, any holes and gaps in the enclosure wall must be sufficiently long and narrow to prevent hot combustion products expelled by a gas…
Shanker Equation of State is used to study the volume compression of nanocrystalline materials under different pressure. On comparing with the experimental data it gives good results at low pressure, but for higher compression it deviates from the experimental points. Therefore, the Equation of State is modified empir…
This paper describes some studies on the development of shape memory alloy (SMA) core-sheath friction yarns. SMA wires for actuating purposes were utilised as a conductive element in the core-sheath friction yarn. A DREF 3000 friction spinning machine was used to produce the yarns. The conductive yarn was spun with th…
This letter investigates the potential of a low-temperature plasma grown silicon oxy-nitride (SiOxNy) film for surface passivation of silicon surfaces. Using Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy, the film composition is studied to identify the process condition for obtaining a s…
Miscible (Al/Nb) and immiscible (Cu/Nb) nanometallic multilayer systems were characterized by means of transmission electron microscopy techniques, primarily by automated crystallographic orientation mapping, which allows for the resolution of crystal structures and orientations at the nanoscale. By using this techniq…
Directional solidification is one of the most popular techniques for massive production of multicrystalline silicon. After growth and annealing, the ingot is cooled down by a designed cooling process, which is initialized by descending bottom insulation, and then is controlled both by power ramp‐down rate and by motio…
The atom-scale structure and properties of the interface between polymer electrolyte and electronic conductor are of great interest for novel electrochemical power sources including fuel cell, lithium batteries, and supercapacitors. Scanning tunneling microscopy, a well-known tool for imaging electronically conducting…