Materials Literature
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We report on the effect of Ni doping on the thermoelectric properties of p-type BiCuSeO oxyselenide, with layer structure composed of conductive (Cu2Se2)2-layers alternately stacked with insulating (Bi2O2)2+layers along c axis. After doping with Ni, enhanced electrical conductivity coupled with a moderate Seebeck coef…
The use of green roofs is a growing practice worldwide, particularly in densely populated areas. In an attempt to find new methods for recycling crumb rubber, incorporation of crumb rubber into artificial medium for plant growth in green roofs and similar engineered environments has become an attractive option for the…
Background Heart valve replacement therapy with allogenic decellularized heart valve matrices allows an in vivo autologisation by repopulation of the foreign matrix with autologous cells. This method, which is superior based on experimental evidence to traditional heart valve replacements either of mechanical or gluta…
Free identical nanoobjects include metals, semiconductors, magnetic materials, polymers, bio molecules, are integrated together to form as multifunctional nanomaterials (MFNs), in which more than one behaviour can be rendered simultaneously. This summary showcases their exciting properties which are providing the emer…
To evaluate the effect of type of phosphate (P) material on reducing soil cadmium (Cd) extractability and radish Cd uptake in the field, two different P materials, fused superphosphate (FSP) and dipotassium phosphate (K2HPO4), were applied at rates of 0, 33.5, 100.5, and 167.5 kg P ha−1 before seeding radish (Raphanus…
In this study, high-resilience bonding polyester/Poly-paraphenylene terephthalamid intra-ply hybrid nonwovens with various fiber blending ratios and thermal treatment conditions were prepared through needle-punching and thermal bonding. The mechanical characteristics including tensile strength, tear strength, puncture…
Originating from discussions held in Rio de Janeiro in July 2010 and in Glasgow 2011, a proposal was made to International Federation for Heat Treatment and Surface Engineering (IFHTSE) that an int...
A study of the structural and mechanical properties of nanocrystalline TiAlSiN gradient coatings deposited by cathodic arc deposition techniques at 500 °C and post-annealed at 525 °C is presented. Analysis of the coatings, chemical composition and microstructure revealed that the coatings have a structure based on (Ti…
Ti/Al/TiC mixed powders were used as the raw materials for the fabrication of functionally graded material (FGM) in situ synthesis by spark plasma sintering. The sample was analyzed by SEM combined with Metallographic microscope and Energy Disperse Spectroscopy. The results show that dense Ti2AlC/TiC functionally grad…
We utilized first-principles density-functional-theory (DFT) calculations to evaluate the thermodynamic feasibility of a pyroprocessing methodology for reducing the volume of high-level radioactive materials and recycling spent nuclear fuels. The thermodynamic properties of transuranium elements (Pu, Np and Cm) were o…
The promise of magnetic bit-patterned media (BPM) in the hard disk drive industry hinges on its capability to extend the data storage density beyond that achievable by conventional continuous media. Its success, however, depends strongly on meeting the jitter and throughput requirements of BPM with a suitable fabricat…
Swiss rolls, consisting of a helically wound metal/dielectric laminate tape are utilized to achieve a novel ultrathin metamaterial absorber (MA) with a thickness of only about less than two percent of the incident wavelength. An intense magnetic resonance happens accompanied by strong absorption efficiency above 95% f…
Aluminum nitride nanofibers are synthesized by the direct reaction of aluminum fluoride with sodium azide. The reaction product (grayish white powder) is investigated using a scanning electron micro-scope. The results testify that the product has fibrous morphology with a fiber diameter reaching 100 nm. The effect of…
Abstract This paper discusses technical problems related with casting of titanium alloys in centrifugal vacuum furnaces. The potentials of an analysis of the centrifugal casting process carried out in the Flow3D software CFD (Computational Fluid Dynamics) were presented. Simulations were carried out on a model set, wh…
The non-linear dynamic characteristics and optimal control of a giant magnetostrictive film (GMF) subjected to in-plane stochastic excitation were studied. Non-linear differential items were introduced to interpret the hysteretic phenomena of the GMF, and the non-linear dynamic model of the GMF subjected to in-plane s…
A comparison of the results of synthesis of complex oxides system (2- x )ZnO- x CdO-SnO 2 was carried out from various precursors at the temperature modes characteristic of the traditional method of production of electrical contacts. Samples were synthesized from mechanical blends of powders ZnO, CdO, SnO 2 , and by a…
SiC-TiB2/B4C composites were fabricated by hot-press sintering B4C with silicon powder and tetrabutyl titanate (precursor of TiO2) as sintering and reinforcement agents. The influence of additives on hot-press sintering densification, microstructure and properties of composites were studied. The results showed that Ti…
Yttrium aluminium garnet (YAG) possesses many good properties, and usually uesd as sintering additives for silicon carbide ceramics. The YAG precursor solution was preformed by the coprecipitation process, then 8wt% prepared precursor solution was added and uesed as binder for samples' green bodies dry mould pressing.…
The effect of blend composition and Electron Beam (EB) irradiation on the crystallization and thermal behavior of Low Density Polyethylene (LDPE)/Ethylene-Propylene-Diene elastomer (EPDM) blends had been studied. Melting temperatures were found to remain unchanged upon variation of blend composition as well as irradia…
Heterogeneous nucleation in a conically shaped pit on the surface of a plane surface substrate is investigated. The growing process of a cluster on the substrate consists of three stages: growing within the conical cavity, at the cavity edge and outside the cavity. In every stage, the thermodynamic criterion of a clus…