Materials Literature
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A method for transfer of vanadium dioxide films from one substrate to another is proposed. This transplantation reveals a significant influence of elastic stresses arising during the film synthesis and as a result of the structural phase transition in the film on the temperature and shape of hysteresis of the optical…
A comparative X-ray diffraction study of the initial single-phase metal-oxide compound-strontium iron molybdate Sr 2 FeMoO 6 − δ (SFMO)-and that subjected to additional isothermal annealing shows that this heat treatment leads to the appearance of a SrMoO 4 (SMO) phase. Small-angle neutron scattering measurements indi…
In this paper, a pulsed scanning method for the total electron emission yield measurement of insulating materials is proposed. A total electron detector with big hollow space and insulating spacer, and a pulsed yield scanning measurement system is recommended. This method can avoid influence from the charged surface o…
We report our ab - initio calculational results for the electronic structures and the magnetooptical (MO) properties of the ferromagnetic Co2MnX full Heusler alloys where X = Ge, Sn and Pb. Employing the +U corrections for the 3d bands of transition-metal atoms in addition to the conventional local density approximati…
We prepared string like assemblies of aligned single-wall carbon nanotubes (SWCNTs) in a (6,5) nearly single-chiral state. We observed that by simply adjusting the temperature and incubation time of SWCNT monodispersed solutions, string-like assemblies of aligned SWCNTs could be generated. Polarized Raman and scanning…
A hydrazide compound (N-4) was used as a nucleating agent to induce the crystallization of poly (lactic acid) (PLA). PLA/N-4 samples were prepared by melt blending in an internal mixer. The melting and crystallization behavior and spherulitic morphology of the samples doped with different contents of N-4 were investig…
Corrosion affects the durability of civil infrastructure assets, including water production, supply, and storage systems. “Green” corrosion inhibitors will extend the life of industrial equipment for water systems. Special green inhibitors are obtained from plants growing in desert regions of the State of Baja Califor…
A phthalonitrile precursor 4-(3-hydroxypropylmercapto)phthalonitrile (3) was synthesized via a base-catalyzed nucleophilic aromatic nitro displacement of 4-nitrophthalonitrile with the 3-mercapto-1-propanol. A novel tetrasubstituted metal-free phthalocyanine (4) ( M = 2 H ) and its metal complexes (5–8) ( M = Zn , Ni…
The materials engineering data base relevant to fusion irradiation is poorly populated and it has long been recognized that a fusion spectrum neutron source will be required, the facility IFMIF being the present proposal. Reevaluation of the regulatory approach for the EU proposed DEMO device shows that the purpose of…
Using hybrid functional calculations, we find that under the experimental pressure of 36.7 GPa, layered Sr 3 Fe 2 O 5 undergoes a spin-state transition (SST) from high spin to intermediate spin. This transition is triggered by an electron depletion of the highest crystal-field level x 2 − y 2 . On the other hand, a re…
The article presents the results of investigation of thermal expansion of ChS-139 steel in the temperature range 20–720 °C. Measurements were carried out by dilatometric method with DIL-402C unit manufactured by NETZSCH (Germany) with the error (1.5–2)×10 −7 K −1 . The approximation dependences of thermal coefficient…
An abaya is a traditional Muslim woman's outer garment. It is black and worn on a day-to-day basis when women are outside their homes. The abaya absorbs most of the heat from sunlight in a hot climate as it is black, making the wearer very uncomfortable. In order to reduce absorption of heat in an abaya and to make th…
Differential thermal analysis (DTA) equipment for utilization in a high magnetic field of 45 T was developed. From the DTA experiments, the decomposition temperature (MnBi → Mn1.08Bi+liquid: 632 K at zero field) T t was found to increase linearly at a rate of 2 KT−1 in fields up to 18 T and to deviate from that linear…
Space charge existed in polymer subjected DC high electrical stress has attracted more and more attention over the world. Various methods of inhibiting space charge generation and accumulation had been attempted in order to reduce insulation deterioration. In the present paper, the polyethylene/montmorillonite nanocom…
ASDEX Upgrade (AUG) has been converted to all W plasma facing components (PFCs) in 2007 and JET has implemented the ITER like wall (ILW) project (2011) using the same PFC configuration as ITER during its active phase, namely Be in the main chamber and tungsten in the divertor. As a result of the all metal PFCs both de…
This paper reports a micromachined metamaterial which is tunable between anisotropic and isotropic state. The tuning rescales the metamaterial lattice constant instead of changing the element structure. It realizes a resonance independent change of transmission and tunes the transmitted phase of polarized THz wave. Th…
The effect of the introduction of nano-fillers into polyethylene on space charge accumulation is usually studied in electric fields reaching 100kV/mm using thin 100 μm samples, which is much thinner than the insulation in actual HVDC cables. Our previous work showed that space charge distributions in LDPE and its nano…
The toxicity of CuO engineered nanoparticles (ENPs) to chlorella pyrenoidosa was investigated in this study. CuO ENPs inhibited the growth of algal cells significantly, while the Cu ion and CuO bulk particles (BPs) showed lower toxicity than ENPs. The black dots observed in cells using Transmission electron microscopi…
Multifunctional (poly(diallyldimethyl ammonium chloride)/ sodium poly(4-styrene sulfonate)) n ((PDDA/PSS) n ) thin films were fabricated by layer-by-layer assembled on the glass substrate. The monolayer silica nanoparticles were prepared on the (PDDA/PSS) n films. The SiO2-polyelectrolyte coatings exhibit antireflecti…
Oxide Dispersion Strengthened steels are materials for the first wall of proposed nuclear fusion reactors including DEMO. They contain a nanoparticle dispersion of Y2O3which restricts dislocation motion. The particles act as low energy sites capable of trapping helium. The experiments reported here focus on the mechan…