Materials Literature
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Skin and garment constitute a dynamic contact system for human body comfort and protection. Although dermatological injuries due to fabric actions during human body movement are common, there is still no general guidance or standard for measuring or evaluating skin/garment contact interactions, especially, during inte…
Volume is indexed by Thomson Reuters CPCI-S (WoS).The literature on fracture accumulated over the past few decades is abundant. It would be too overwhelmingly difficult to name every original contribution to the field by different individuals. Yet, a quick glance through even very limited part of the vast fracture lit…
Nonstoichiometric Na(x)CoO2 (0.5 < x < 1) consists of CoO2 layers made up of edge-sharing CoO6 octahedra and exhibits strongly anisotropic magnetic susceptibilities as well as metallic properties. A modified Curie-Weiss law was proposed for systems containing anisotropic magnetic ions to analyze the magnetic susceptib…
The structural studies of potassium hexatitanates prepared under both hydrothermal and solid state conditions were carried out. Fourier Transform Infra-red spectroscopy (FTIR) results revealed that potassium hexatitanate structure consisted of TiO6 octahedral units irrespective of the preparative conditions and partic…
Within the maximum entropy principle we present a general theory able to provide, in a dynamical context, the macroscopic relevant variables for carrier transport under electric fields of arbitrary strength. For the macroscopic variables the linearized maximum entropy approach is developed including full-band effects…
Attempts were made to synthesize various compositions in the system Sr1−xLaxTi1−xMnxO3 (x⩽0.50) by solid state ceramic route. A few compositions were also synthesized by citrate nitrate route. Solid solution forms in all the compositions investigated. Crystal structure remains cubic up to x=0.10 similar to SrTiO3, whi…
BACKGROUND: To compare the performance of clear and photochromic spectacle lenses in children and adolescents, with respect to visual acuity and satisfaction with day-to-day activities. METHODS: Fifty full-time spectacle wearers, aged 10 to 15 years, were randomly assigned to wear clear and Transitions photochromic sp…
Thin films of La0.7Sr0.3MnO3 (LSMO) have been grown on the ferroelectric 0.68Pb(Mg1∕3Nb2∕3)O3–0.32PbTiO3 (PMN-PT) single-crystal substrates. The ferroelectric polarization of the PMN-PT induces a large decrease in the resistivity and an upward shift in the Curie temperature of the LSMO films, which was interpreted in…
A salt-inclusion samarium selenogermanate compound, NaSmGeSe4 x 0.25 Na2Se was isolated from a reaction of Na2Se, Sm, GeSe2, and Se. The new structure consists of isolated GeSe4 units and bicapped trigonal-prismatic SmSe8, which are linked together to form corrugated anionic layers. The topology of the layer is simila…
The itinerant-electron metamagnetic (IEM) transition and magnetocaloric effects (MCE’s) in the La0.8Ce0.2Fe13−xSix (x=1.6,1.4,1.2,1.0) compounds have been investigated by x-ray powder diffraction and magnetic measurements. The La0.8Ce0.2Fe11.4Si1.6 compound exhibits giant values of the isothermal magnetic entropy chan…
A pseudo-1-3-type multiferroic composite consisting of Pb(Zr,Ti)O3 (PZT) rod array (with base) and Terfenol-D/epoxy matrix was prepared by the dice-and-fill technique. Simple series and parallel mixture rules well described the measured dielectric and piezoelectric constants. Large magnetoelectric coefficients were ob…
Measurement of the ionic conductivity for the CA-NH4CF3SO3-DMC system was carried out at frequencies of 50 Hz to1 MHz and also at temperatures of 298 K to 313 K. The plot of log σ versus 1000/T shows a linear behavior suggesting that the samples obey the Arrhenius relationship. The electrical relaxation of the system…
A highly ordered and crystallized titania (TiO(2)) nanotube array is fabricated by a low-voltage anodization plus a post-embedding calcination process. Polyoxophosphotungstate-titania (POPTA-TiO(2)) composite catalyst is synthesized by embedding POPTA in TiO(2) tubule channels to improve the photoelectrochemical prope…
In this study surface modified SBA‐15, coated with octadecyltrichlorosilane (C18), is considered as an alternative adsorbent for metal ions in water. The SBA‐C18 was loaded with Bis(2,4,4-trimethylpentyl) phosphinic acid (cyanex 272) as the metal ion extractant. The adsorption characteristics of phosphinic acid loaded…
The velocity of ultrasonic longitudinal and transverse waves in ${\mathrm{Zr}}_{46.75}{\mathrm{Ti}}_{8.25}{\mathrm{Cu}}_{7.5}{\mathrm{Ni}}_{10}{\mathrm{Be}}_{27.5}$ bulk metal glass has been measured at $298\phantom{\rule{0.3em}{0ex}}\mathrm{K}$ after its annealing for different times at $523\phantom{\rule{0.3em}{0ex}…
Al doped zinc oxide thin film was prepared by dc facing-target sputtering method and its structural, optical, and electrical transport properties have been investigated. The average transmittance of the films is greater than 90% in the wavelength region of 450–700nm while the resistivity is as high as 3×10−3Ωcm. The b…
Nanocrystalline diamond (NCD) films with thicknesses in the range of 0.12–1.5μm were deposited on silicon substrates in CH4∕H2∕O2 gas mixtures by microwave plasma-enhanced chemical vapor deposition. The morphology and structure of these NCD films were analyzed by field-emission scanning electron microscopy, x-ray diff…
An optically stable, novel class of fluorophores (quantum dots) for in situ hybridisation analysis was tested to investigate their signal stability and intensity in plant chromosome analyses. Detection of hybridisation sites in situ was based on fluorescence from streptavidin-linked inorganic crystals of cadmium selen…
Magnetoinductive waves propagating along a set of resonant metamaterial elements are studied under the condition when the wave travels round a closed circular path and the total phase shift is an integral multiple of 2π. The resonant frequency of the circulating wave is shown to be related to the resonant frequency of…
Abstract The fraction of directly‐bound carbonyls of surface‐adsorbed poly(methyl methacrylate) (PMMA) was determined using transmission Fourier‐transform infrared (FTIR) spectroscopy. The small size of the silica used allowed these measurements to be made directly in the transmission mode from dried casts deposited o…