Materials Literature
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A huge variety of optical colour centres can be found in diamond, emitting in its whole wide transparency range. Although several of these centres have been demonstrated as single-photon emitters, none of them meets all of the requirements of an ideal single-photon source. In this view, we discuss the properties of pr…
Cancer is a leading cause of morbidity and mortality worldwide, with recent advancements resulting in modest impacts on patient survival. Nanomedicine represents an innovative field with immense potential for improving cancer treatment, having ushered in several established drug delivery platforms. Nanoconstructs such…
Considering the title of this paper, one might think that everything has been said, shown, proven and discussed already on ageing and failure of electrical insulating materials, based on at least half century of research work and field feedbacks. However, perhaps there is still room to collect ideas and speculate on a…
We successfully synthesized Au-ZnO hybrid nanoparticles with a novel hexagonal pyramid-like structure. The growth process of the as-prepared hybrid nanopyramids is clearly discussed. Because of their homogeneous composition and controlled morphology, the Au-ZnO hybrid nanopyramids demonstrate better photocatalytic eff…
In this study, the volume-acceleration model was introduced to determine the initial condition for bubble motion during underwater explosion. Subroutines, which defined the initial and boundary conditions of the fluid field, were developed based on MSC.DYTTAN software. Numerical simulations were compared with the resu…
Mullite nanocomposite was synthesized using kaolin with different Si/Al molar ratios in the range of 1.1- 4.31. The synthesized samples were analyzed and characterized using XRD and SEM techniques and effects of Si/Al molar ratio on mullite nanocrystal morphology have been investigated. SEM results showed that the mul…
In the present work 99.98% commercial pure copper, 99.5% commercial pure nickel and 99.5% commercial pure aluminum were imposed on high strain levels of ~24, ~8 and ~44 by equal channel angular pressing (ECAP) via route Bc, respectively. Microstructures and mechanical properties are investigated by TEM observations, t…
BaIn 0.3 Ti 0.7 O 2.85 (BIT07) is a promising electrolyte for solid oxide fuel cells, due to its chemical compatibility with most of the cathode electrode material such as LSM and Ln 2 NiO 4 . The present work is aimed on the fabrication of anode‐supported half cells with thin BIT07 electrolyte. For this, Ni‐8YSZ cerm…
In this work, coupled effects of thickness and annealing temperature on both microstructure and residual stress of electroplated copper thin films are studied. Microstructure is investigated by Electron Backscattered Diffraction (EBSD) and residual stress is estimated from samples curvature. All films exhibit highly t…
New nanocomposite films were prepared from a dispersion of organically modified montmorillonite as the filler and flexible polyurethane as the matrix. The polyurethanes containing a small amount of carboxylic groups were synthesized from 4,4′-diphenylmethane diisocyanate (MDI), 1,4-butanediol (1,4-BD), and poly(tetram…
Polymers are one of the key engineering materials and are widely used in many fields of economic development, and scientific and technological innovation. During their rapid development throughout the 20th century, polymers deeply influenced the entire world economy. The more than 129 peer-reviewed papers presented he…
The size-dependence of the vibrational mode frequencies of octahedron-shaped gold nanocrystals has been measured by micro-Brillouin spectroscopy. A finite element analysis reveals that the nine well-resolved peaks observed are due to confined acoustic modes with each peak arising from more than one mode. The elastic c…
We have investigated the magnetic and magnetotransport properties of Ge1-xMnxTe (x = 0.1) grown by molecular-beam epitaxy. Our results show that the sample exhibits two ferromagnetic transition temperatures at TC = 34 K and TC* = 100 K. We infer that Tc is a long-range ferromagnetic ordering in view of sufficient carr…
Abstract We investigate extrusion film casting (EFC) of polypropylene (PP) and examine the effects of varying the concentration of nucleating agent, dimethyl dibenzylidene sorbitol (DMDBS); melt temperature at the die exit; and the draw ratio. Addition of DMDBS increases the PP crystallization temperature, and consequ…
Nanosized hexagonal BaTiO3 particles were synthesized at 1373 K, grain growth was prevented by reducing the temperature of the cubic–hexagonal phase transition. Crystal structures of nanosized hexagonal Mn- and Ga-doped BaTiO3 were studied by high-energy synchrotron radiation powder diffraction at BL02B2 of SPring-8.…
Inorganic nanoparticles are of technological interest in many fields. We created silicate nanoparticle hydrogels that effectively incorporated biomolecules that are unstable and involved in complicated reactions. The size of the silicate nanoparticles strongly affected both the physical characteristics of the resultin…
We report the successful fabrication of (Er 3+ , Yb 3+ )-co-doped ZnO transparent hybrid materials by controlling compositions and crystallization. The singly precipitated ZnO nanocrystals were preferentially oriented along the c -axis on the glass surface, leading to an intense luminescence at the bandgap energy of Z…
Abstract The morphology and mechanical properties of foams made out of a series of ethylene‐α‐olefin copolymers having well‐characterized rheological properties were investigated. A compression foaming molding technique was implemented, using azodicarbonamide as the blowing agent. The polymers differed in the amount o…
The formation enthalpy of BiFeO3 from oxides is studied by density-functional theory. It is predicted to be a small negative value by local density approximation plus U calculations, which is used to study the phase equilibria and chemical potential-temperature phase diagram of BiFeO3 by the calculation of phase diagr…
An energy landscape view of phase separation and nonideality in binary mixtures is developed by exploring their potential energy landscape (PEL) as functions of temperature and composition. We employ molecular dynamics simulations to study a model that promotes structure breaking in the solute-solvent parent binary li…