Materials Literature
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Hot isostatically pressed tailored hollandite waste forms were used to demonstrate the immobilization of Cs and Sr are separable from spent nuclear fuel, as well as Ba and Rb. Four hollandite formulations were investigated, two samples with ∼12 wt% waste loading (on an oxide basis) and two with ∼18 wt% waste loading.…
A systematic study of structural and phase transformations in Ti-Ta quenched alloys in a wide concentration range has been carried out. Boundaries of the concentration ranges of the hexagonal α′ and orthorhombic α″ phases have been determined. Morphological forms of the transformation products have been studied. Distr…
Spin-polarized density functional theory has been used to study the properties of seven kinds of divacancies in graphitic boron nitride sheets. We find that some divacancies are magnetic and the symmetry of the sheets is broken by the distortion of atoms which are close to the vacancies. According to the formation ene…
Anti-tumor potential of root extracts of Calotropis procera: methanolic extract (CM), hexane extract (CH), aqueous extract (CW) and ethylacetate extract (CE) and its possible mechanism against Hep2 cancer cells has been investigated. Cellular proliferation activities were assayed by tetrazolium bromide (MTT) colorimet…
We investigate vibrational behaviors in misch-metal filled antimony skutterudites in the time domain. At higher filling ratios of guest atoms, the vibration frequency approaches that of the cage structure and the amplitude becomes stronger. Furthermore, the reduction of lattice thermal conductivity over a wide tempera…
We report the synthesis of ZnS and ZnS:Cu (copper doped ZnS) quantum dots by chemical method at room temperature. In this technique ZnS and ZnS:Cu quantum dots are produced by simple chemical reactions where zeolite acts as matrix and plays the key role in controlling particle growth during synthesis. ZnS exhibits lum…
Five different compositions of the ternary system (ZnO) x (MgO) 30 (P 2 O 5 ) 70-x containing 8, 10, 13, 15 and 18 moL% of ZnO were prepared by the melt quenching technique. The complex permittivity studies were presented in the frequency range of 0.01 Hz to 1 MHz and over the temperature range of 303-573 K. The empir…
The measurement of dielectric spectroscopy over a broad frequency range of 0.01–107 Hz has been conducted to examine the segmental motions in poly[3-hydroxybutyrate-co-3-hydroxyvalerate] (PHBV) biopolymers. The ac conductivity at either low temperatures or high frequencies is almost temperature independent, indicating…
The particle/polymer/solvent suspension system shows complicated microstructure. When the suspension system experiences an industrial process such as coating and drying, the system experiences microstructural change. In this study, we investigated the microstructural change during the drying of a silica/polyvinyl alco…
Abstract The reversion type cure kinetic and induction time models were successfully utilized to predict the isothermal and nonisothermal evolution of the state of cure in vulcanization of the unfilled and carbon black (CB)-filled IR compounds measured by APA 2000. The rate constants for the reversion reaction and the…
Abstract The multiwalled carbon nanotubes (MWCNT) filled styrene–butadiene rubber (SBR) composites were prepared by incorporating MWCNT in a SBR/toluene solution and subsequently evaporating the solvent. These composites have shown a significant improvement in Young's modulus and tensile strength with respect to SBR g…
Electronic and magnetic properties of a layered compound LaMnPO are examined in relation to a newly discovered iso-structural superconductor LaFeAs(P)O. Neutron diffraction measurements, together with temperature dependent magnetic susceptibility, clarify that LaMnPO is an antiferromagnet at least up to 375 K. The spi…
Simple closed-form analytic solutions have been obtained for the effect of initial residual stress on the bending stiffness of a symmetric trilayer plate/beam and for the combined effect of surface elasticity and initial surface stress on the bending stiffness of a nanofilm/nanobeam.The relative effect of the initial…
Solid-state lighting (SSL) is emerging as a highly competent field and a possible alternative to existing lighting technologies. Development of a suitable phosphor is an important aspect of SSL. The aim of this review is to summarize status of Inorganic Phosphors towards SSL applications. Various examples have been ta…
5-Fluorouracil is one of the oldest chemotherapy drugs and it has been in use for decades. It is an active medicine against several types of cancer and effectively blocks the replication of DNA viruses. The present study assessed the potential of diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy to d…
Magnetic properties and magnetocaloric effects of La 1− x R x Fe 11.5 Si 1.5 ( R = Pr, (0 ≤ x ≤ 0.5); R = Ce and Nd, (0 ≤ x ≤ 0.3)) compounds are investigated. Partially replacing La with R = Ce, Pr and Nd in La 1− x R x Fe 11.5 Si 1.5 leads to a reduction in Curie temperature due to the lattice contraction. The subst…
Recently superconductivity at the interface between the insulators ${\text{LaAlO}}_{3}$ and ${\text{SrTiO}}_{3}$ has been tuned with the electric-field effect to an unprecedented range of transition temperatures. Here we perform a detailed finite-size scaling analysis to explore the compatibility of the phase-transiti…
The synthesis and characterization of yttrium hydroxyl carbonate (Y(OH)CO 3 2− ) and yttrium nitrate hydroxide hydrate (Y(OH)NO 3 H 2 O) precursor materials as well as Y 2 O 3 nanoparticles are reported. The resultant precursor particle size is about 10–12 nm with a narrow size distribution by the enzymatic decomposit…
The improvement of heat conduction in electrical power equipment has become a very important issue. Thermoplastic and thermosetting polymers, which are mainly used for their insulating properties, have a relatively low thermal conductivity. One approach to change this is to introduce inorganic fillers which have high…
We describe a cycling failure mode in Ge2Sb2Te5-based phase change memory, based on density difference of GST in different phases and the SET/RESET thermal operations. Voids that develop and merge with each other within GST programming volume after cycling eventually lead to cell failure. By adding suitable amount of…