Materials Literature
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In this paper, we consider a fast and efficient numerical method for the modified Cahn–Hilliard equation with a logarithmic free energy for microstructure evolution. Even though it is physically more appropriate to use a logarithmic free energy, a quartic polynomial approximation is typically used for the logarithmic…
On the thermodynamic condition for forming a metastable phase from undercooled melt in a containerless state, we had proposed a criterion that crystals will preferentially form if they have a smaller entropy of fusion than the entropy of fusion of equilibrium crystals (Kuribayashi et al., Mater. Sci. Eng., A 449–451,…
We report hard x-ray photoemission spectroscopy measurements of the electronic structure of the prototypical correlated oxide ${\mathrm{Sr}}_{x}{\mathrm{Ca}}_{1\ensuremath{-}x}{\mathrm{VO}}_{3}$. By comparing spectra recorded at different excitation energies, we show that 2.2 keV photoelectrons contain a substantial s…
An approach to derive, from first-principles data, accurate and reliable potentials in the modified embedded-atom method in view of modeling the mechanical behavior of metals is presented in this work and applied to the optimization of a potential representative of lithium (Li). Although the theoretical background of…
Thermal response rates of plasmonic nanocomposite materials limit their capacity for adaptive control and scalable implementation. This work examines thermal dynamics in insulating and conductive dielectrics containing two- and three-dimensional disordered distributions of plasmonic gold nanoparticles (AuNP). It is sh…
The charge carriers type in antimony-doped ZnO (ZnO:Sb) microwires was studied using the hot probe technique. The wires were grown by a simple thermal evaporation method. Contrary to the expected p-type behavior reported for Sb doped ZnO thin films and nanowires, our hot probe measurements of representative single Sb-…
Problems associated with the modeling and vibration control of rectangular plates under dynamic loads with integrated polycrystalline NiTi shape memory alloy (SMA) ribbons are developed. In order to simulate the thermo-mechanical behavior of SMA ribbons under dominant axial and transverse shear stresses, a robust macr…
The antipodal introduction of two bromine atoms on the 2,12 β-pyrrolic position of 5,10,15,20-tetra(3,5-di-tert-butylphenyl)porphyrin was successfully achieved by a light-induced reaction of the substrate with excess NBS. Complexation with Ni(II) of the major regioisomer led to good quality crystals, suitable for X-ra…
High Voltage insulators are scattered throughout any HV network and a single insulator fault may cause an excessive outage. Reliability is a key issue for electric power systems and fault-free performance of insulators greatly reflects on the reliability of the system. Environmental influence is rather important for t…
The influence of annealing temperature on structural and optical properties of sol–gel routed spin-coated molybdenum tri oxide ( MoO 3 ) thin films are studied. The higher annealing temperatures improve the crystalline nature of the film. The X-ray diffraction (XRD) study reveals the formation of α-orthorhombic phase…
An innovative and novel technology method of processing called Turbo-Mixing Reactive Precipitation (TMRP) design proposed as an alternative to this current processing or conventional productions of fine precipitated calcium carbonate (nanoPCC) in turbo-mixing conditions. In this paper, the effect of the stirring rate…
In the article the author designed the circuit diagram of titanium in the Industry, and the prospects for the use of different types of waste in the production of titanium products. It is noted that the assessment metallofonda titanium, note the following: – in the circuit must be considered export titanium titanium p…
Commercial magnesia partially stabilized zirconia (MgO-PSZ) has been selected as the starting materials. Different sintering temperatures have been investigated to determine the optimal conditions. The sintering behavior and characteristic of MgO-PSZ are investigated in this work. Microstructures have been obviously a…
Beyond-CMOS devices concepts are greatly dependent on new functional materials to provide inspiration and innovation beyond the silicon status quo. Here, we propose a material framework specifically for beyond-CMOS devices. In doing so, material system examples and data points presented are taken from the Center on Fu…
Charge transport in organic semiconductors is dependent on a favourable supramolecular organization, yet how do we determine which packing architecture is best? As both molecular and supramolecular effects control charge transport, trends observed for one class of compounds may not hold true for another. By studying p…
Abstract [Cr III 8 M II 6 ] 12+ (M II =Cu, Co) coordination cubes were constructed from a simple [Cr III L 3 ] metalloligand and a “naked” M II salt. The flexibility in the design proffers the potential to tune the physical properties, as all the constituent parts of the cage can be changed without structural alterati…
Abstract Topology transformation of a star polymer to a linear polymer is demonstrated for the first time. A three‐armed star polymer possessing a mechanical linking of two polymer chains was synthesized by the living ring‐opening polymerization of δ ‐ valerolactone initiated by a pseudo[2]rotaxane having three hydrox…
Tb3+/Yb3+codoped α-NaYF4single crystals with various Yb3+concentrations and ~0.40 mol% Tb3+are grown by Bridgman method using KF (Potassium fluoride) as flux with a temperature gradient of 70 °C/cm-90 °C/cm across the solid-liquid interface. The effect and mechanisms of KF in the growing process are studied. The cryst…
Functionalized of Multi Wall Carbon Nanotubes (MWCNTs) were demonstrated using the nitric acid (HNO 3 ) oxidation technique in order to get opened caps, removing carbonaceous and metal particles impurities for carboxylic groups (-COOH). The surface morphology and the existence of the carboxyl-group on the MWCNTs were…
Among insulating materials, lithium fluoride (LiF) has been successfully used as ionizing radiation dosemeter for more than 60 years. Thermoluminescence (TL) has been the most commonly used reading technique to evaluate the absorbed dose. Lately, optically stimulated luminescence (OSL) of visible emitting color center…