Materials Literature
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Minimizing the weight and volume in a ship cable plant improves system efficiency or provides the capability to carry more critical payloads. Cabling should be as small as possible. This research developed an approach to the fundamental understanding needed to design, specify, and test cabling that has the minimum pru…
The influence of surface stress and small scale on the dynamic pull-in behavior of nano-bridges is investigated in this paper. For this purpose, the governing equation of motion is derived based on the modified couple stress theory and Homotopy Perturbation Method with an auxiliary term is employed to produce the appr…
This paper reports an approach to obtaining multiferroic properties in co-doped (Zn:Mn) BaTiO 3 near room temperature. Interestingly, an unusual magnetic hysteresis loop is observed in the co-doped compositions in which the central portion of the loop is squeezed. However, in the composition Ba 0.9 Zn 0.1 Ti 0.9 Mn 0.…
An Atomic Finite Element Analysis is developed in this paper. At atomic scale, the interatomic bonding forces of Van der Waals and the covalent chemical bond are taken into account. The methodology is applied to study the behavior of carbon nanotubes, whose development has experienced strong growth in recent years and…
Highly-efficient delivery of macromolecules into cells for both imaging and therapy (theranostics) remains a challenge for the design of a delivery system. Here, we suggested a novel hybrid protein-lipid polymer nanocapsule as an effective and nontoxic drug delivery and imaging carrier. The biodegradable nanocapsules…
The effect of alkaline and alkaline-earth metal oxides addition to the ZnO-Al2O3-SiO2 system on the glass formation has been studied and the crystallization behaviour of these glasses was investigated by DTA and XRD. The addition of alkaline metal oxides tends to hinder the glass formation and only the system containi…
The structure and properties of dispersions of pristine and covalently modified multiwalled carbon nanotubes (MWCNTs) in N , N -dimethylacetamide (DMAc), N -methyl-2-pyrrolidone (NMP), N , N -dimethylformamide (DMF) and water have been studied. It has been shown that the dispersions in NMP have the highest stability a…
Both negative and positive dielectric anisotropy liquid crystals have been used in fringe field switching (FFS) display devices. We compare the electro‐optic performances of single‐domain p‐FFS with two‐domain n‐FFS from device and material viewpoints. Quantum‐dot backlight enhanced FFS shows vivid colors with negligi…
Ceria-zirconia mixed oxides have been synthesized by hydrothermal synthesis process. Under hydrothermalconditions, water potential to control the direction of crystal growth, morphology, particle size and sizedistribution, because of the controllability of thermodynamics and transport properties by pressure andtempera…
Multi-level-cell (MLC) is a critical technology to achieve low bit cost for phase change memory. However, resistance drift is an intrinsic material property that kills memory window and imposes formidable challenges for MLC. In this work, we report a radically different sensing concept that exploits the non-linear R-V…
The calcium analogue of murmanite Triclinic: P1 ¯; structure determined a = 5.3470(6), b = 7.0774(7), c = 12.146(1)A ˚, a = 91.827(4),b = 107.527(4),g = 90.155(4)º11.69(100), 5.87(68), 4.251(89), 3.825(44), 2.940(47), 2.900(79), 2.752(26), 2.659(39) Type material is deposited in the collections of the Fersman Mineralo…
Abstract Lead-free (Na0.5Bi0.5)1-xBaxTiO3 (x = 0, 0.04 and 0.06) ceramics were fabricated by conventional solid phase sintering process. X-ray diffraction analysis shows that obtained specimens possess the perovskite structure. The microstructure study shows a dense structure, in good agreement with the relative densi…
The shock compression wave profiles in three modifications of boron carbide ceramic are studied in the compressive stress range 3–19 GPa. The Hugoniot elastic limit and the spall strength of the materials are determined. It is confirmed that the spall strength of high-hardness ceramic changes nonmonotonically with the…
Efficient parallel screening of combinatorial libraries is one of the most challenging aspects of the high-throughput (HT) heterogeneous catalysis workflow. Today, a number of methods have been used in HT catalyst studies, including various optical, mass-spectrometry, and gas-chromatography techniques. Of these, rapid…
We demonstrate the electrical and thermal transport properties of polycrystalline CoPn2 (Pn = As and Sb) between 300 and 900 K. CoAs2 shows semiconducting electrical transport up to 900 K, while CoSb2 exhibits degenerate conduction. Sign inversion of the Seebeck coefficient is observed at ∼310 and ∼400 K for CoAs2 and…
Specific features in the deformation of polycrystalline vanadium under shock-wave loading conditions have been studied by experimental and theoretical methods. Analysis of the full wave profiles was used to determine the dynamic elastic limit and spall fracture stress in a range of stain rates of 10 5 –10 7 s −1 . The…
The results of ab initio calculations of the structure and properties of thirteen carbon diamond-like phases with atoms located in equivalent crystallographic sites have been presented. The calculations have been performed by the B3LYP-GGA method. Nine of the studied phases have been obtained by linking or combining n…
Undoped and Mn-doped ZnO nanoparticles were successfully prepared by the hydrothermal method with different annealing temperature conditions. Structural, chemical and optical properties of the samples were studied by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), UV-Vis spectrophotometr…
The spectroscopic and photoluminescence characteristics of trivalent dysprosium (Dy(3+))-doped Sr0.5Ca0.5TiO3 phosphor materials synthesized via solid-state reaction method were studied. The X-ray diffraction profile confirmed the orthorhombic perovskite structure of the prepared samples. Judd-Ofelt analysis was carri…
Large amounts of acacia bark residues are produced each day after tannin extraction with hot water, being generally burned. This by-product was chemically characterized and used as filler in polypropylene (PP) composites, considering different particle sizes and concentrations. The materials produced by melt blending…