Materials Literature
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Molecular self-assembly is a powerful tool in materials design, wherein noncovalent interactions like electrostatic, hydrophobic, hydrogen bonding, and van der Waals can be exploited to produce supramolecular nanostructures that are functional and highly tunable. Biomolecules are attractive building blocks, as they ar…
The behavior of polyvinyl chlorine (PVC)/zinc oxide (ZnO) nanoparticles was investigated. To improve the dispersion and distribution of zinc nanoparticles within the host polymer (PVC), they were treated with water before being added to the polymer. The nanocomposite samples were prepared by casting method using diffe…
In this work, we present the results from a chemical speciation study of binary and ternary complexes formed by Ni(II) ion with picolinic acid and the amino acids = Arginine (HArg), Tryptophan (HTrp), Asparagine (HAsn), Glutamine (HGln), Lysine (HLys), Valine (HVal), Leucine (HLeu) and Isoleucine (HIle). The analysis…
Abstract Nanoscale dot patterns are important in various fields. However, it is still a challenge to fabricate ordered nanopatterns on substrates through a polymer self‐assembly approach. In this work, it is reported that polypeptide‐based rod‐coil block copolymers can self‐assemble into surface micelles on substrates…
H2 plasma treatment was performed on carbon-based nonwoven fabrics (c-NFs) in a 900 W microwave plasma-enhanced chemical vapor deposition system at 750 °C and 40 Torr. Consequently, the electromagnetic wave shielding effectiveness (SE) of the c-NFs was significantly enhanced across the operating frequency range of 0.0…
Abstract We experimentally investigated the spectral dependence of the third-order susceptibility $$\chi^{\left( 3 \right)}$$ χ 3 of Au triangular nanoplates in a broad wavelength region (400–1,000 nm). Complex shaped plasmonic nanoparticles provide a promising route to achieve control of their optical properties at t…
The article deals with the evaluation of interactions between abrasive particles and treated sample surfaces. It represents a summary of the knowledge gained from research the wear of tools for crushing unwanted growths. Samples of materials were tested under laboratory conditions. The hardness of HRC and HV10 was eva…
Sintering additives and micro-powder injection molding offer an effective method to densify boron carbide (B4C) and make B4C components with complex shapes. By adjusting the proportion of three kinds of powders (SiC, Al2O3 and Y2O3), four kinds of sintering additives were prepared. The feedstock uniformity, debinding…
This paper reviews the developing progress on the synthesis of the silicon quantum dots (Si-QDs) via the different methods including electrochemical porous Si, Si ion implantation, and plasma enhanced chemical vapor deposition (PECVD), and exploring their featured applications for light emitting diode (LED), color-con…
With 2-thenoyltrifluoroacetone (tta) as the first ligand and phenanthroline derivatives as the second ligand, two europium(III) complexes, Eu(tta)3L1 (L1 = 11-nitrodipyrido[3,2-a:2',3'-c]phenazine) (1) and Eu(tta)3L2 (L2 = 11-methoxydipyrido[3,2-a:2',3'-c]phenazine) (2), have been synthesized and their structures were…
To clarify the effects of deep rolling parameters on residual stress, two-dimensional and three-dimensional finite element models were developed using the Chaboche hardening model. Both two-dimensional and three-dimensional simulation results were compared with experimental results. The three-dimensional model is more…
Abstract Motivated by interesting physical and chemical properties created by doping and topological quantum state, we perform the density functional theory and the Boltzmann transport equation to systematically investigate the geometric structures, stabilities, electronic structures, thermal conductivities and thermo…
A new two-dimensional (2D) phase of Si on Si111 is discussed that consists of ordered adatoms atop a honeycomb framework that contains ordered antiphase boundaries and periodic multi-atom vacancies within the honeycomb. As proposed earlier, this new polymorph is not a simple extension of bulk-like covalent bonding as…
Abstract In this paper, a novel bi‐layered chiral metamaterial (CMM) based design is proposed, which exhibits broadband operation of asymmetric transmission (AT) of linearly polarized waves. Simulation results of the proposed design shows wide‐band AT response (transmission efficiency greater than 90%) in the microwav…
With the slackening of fossil fuels and anxious about greenhouse gas emission culminate, the ever-expanding requirement for green renewable energy, and also to set up the energy with more efficiency. In this context, thermoelectric technology has been of great significance considering the potential growth of electrica…
Graphenylene and naphthylene have recently been proposed as two-dimensional carbon allotropes conceptually defined by the assembly of phenyl-like (P) or naphthyl-like (N) units with the creation of side squarelike rings. These structures can be cut into one-dimensional (1D) nanoribbons displaying electronic properties…
ZnO nanopowders with hexagonal wurtzite structure were synthesized by hydrothermal method with different concentrations of Fe. X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectroscopy, X-ray photoelectron spectroscopy The morphology, structure and optical properties of the samples were tested an…
Plasmons are known to promote light–matter interaction, providing a powerful tool to increase the rate of energy transfer between donor and acceptor molecules that are appropriately located near a plasmonic particle, a phenomenon called plasmon-coupled resonance energy transfer (PC-RET). In this work, we utilize a Mie…
Carburizing is used in applications where there is a high demand for surface hardness and abrasion resistance along with core toughness requirements. Carburizing is mainly used for parts which are subjected to abrasion, such as shafts, pins, gears, cams, etc. At the same time as the hardness of the surface layer incre…
Abstract The W–La 2 O 3 –Y 2 O 3 –ZrO 2 materials were prepared by vacuum hot pressing sintering process. The microstructure was characterized by scanning electron microscopy (SEM). The effects of sintering temperature, sintering pressure, holding time and heating rate on relative density, hardness and microstructure…