Materials Literature
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Catalytic wet air oxidation (CWAO) of o-chlorophenol in wastewater was studied in a stainless steel autoclave using four different Fe catalysts in the temperature range of 100-200 degrees C. Experimental results showed that high rate of o-chlorophenol and COD(Cr) (Chemical Oxygen Demand, mg/L) removal by CWAO was obta…
Amorphous carbon films of several thicknesses were prepared by graphite sputtering on crystalline silicon substrate. The samples were depth profiled with positron annihilation spectroscopy for open-volume measurements and characterized for their residual internal stress. It was found that after film growth the substra…
Coexistence of ferroelectric ferroelastic domains in some materials plays an important role in practical area of domain engineering. Here the problem is discussed theoretically from the point of view of elastic aspects. Domain quadruplets are considered, i.e., systems of four ferroelastic domains coinciding along one…
Abstract Gum and black‐filled vulcanizates having various crosslink densities were prepared from 2 types of rubber, namely, deproteinized natural rubber (DPNR) and synthetic cis ‐1, 4 polyisoprene vulcanizates (IR). Their mechanical properties, such as tensile strength, tear strength, abrasion loss, and heat buildup r…
An experimental study to investigate the various characteristics of the nonlinear behavior of a ferroelectric ceramic material under different electrical and mechanical loading conditions is reported. The nonlinear strain behavior under different loading conditions is obtained and used for studying the effect of resid…
The parameters for bolometric performance [temperature coefficient of resistance (TCR) and noise value] and magnetic sensitivity of pulsed-laser-deposited thin films of La0.7Ce0.3MnO3 and their dependence on the 200 MeV Ag ions irradiation are studied. It is observed that the TCR value and magnetic sensitivity can be…
Selected results obtained using THERMUS, a newly-developed statistical-thermal model analysis package, are presented.
Abstract A thermoplastic polyurethane elastomer/silica hybrid (TPU/SiO 2 ) was prepared using the sol–gel process. This work was undertaken to investigate the thermal and physical properties of this type of hybrid by employing different catalyst systems during sol–gel processing. Two types of catalyst systems includin…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation S.-J. Park, K. S. Kim, J. G. Eden; Nanoporous alumina as a dielectric for microcavity plasma devi…
Abstract We propose a modified kinetic equation for the galvanostatic electropolymerization of pyrrole based on equal rates of monomer disappearance and its galvanostatic electropolymerization associated with applied current ( I ). The equation is distinguished by a zero‐order kinetic plot and takes into account the e…
The critical thickness for ferroelectricity of a BaTiO3 film was determined by the first-principles discrete variational-Xα molecular orbital method and population analysis. Under the assumption that most ferroelectric perovskite oxides are predominantly ionic, a series of model clusters were developed for a BaTiO3 pa…
A two-dimensional periodically poled ferroelectric resonator is reported. The theoretical calculations, computer simulations by the finite element method and experimental data from the lithium tantalite samples reveal a domain acoustoelectric resonance. A polarization inversion in a y-rotated cut of a ferroelectric ch…
Purpose The dependence of seam slippage values on fabric construction parameters makes this property an interesting case for study. Design/methodology/approach In this study, made on a significant wool and blended fabrics sample, the seam slippage was measured, either in warp direction (weft yarns slip), or in weft di…
Abstract The main objective of this study is to investigate the barrier properties and mechanisms of polyethylene (PE), PE/modified polyamide (MPA), and PE/blends of MPA and ethylene vinyl alcohol copolymer (MPAEVOH) bottles against permeation of polar/nonpolar (acetone/white spirit) mixed solvents. The mixed solvent…
Purpose In order to characterize the temperature regulating ability of fabrics containing phase change material (PCM), the test instrument has been designed and built. Design/methodology/approach To assess temperature regulating ability, temperature regulating factor (TRF) is determined. TRF is defined by Hittle as a…
Appropriate addition of CuO/V2O5 and the reduction of the granularity of the raw materials particle decrease the sintering temperature of NiZn ferrite from 1200 degrees C to 930 degrees C. Furthermore, the magnetic properties of the NiZn ferrite prepared at low temperature of 930 degrees C is superior to that of the N…
We perform a study of the interfacial properties of a model suspension of hard sphere colloids with diameter ${\ensuremath{\sigma}}_{c}$ and nonadsorbing ideal polymer coils with diameter ${\ensuremath{\sigma}}_{p}$. For the mixture in contact with a planar hard wall, we obtain from simulations the wall-fluid interfac…
Abstract The surface modification of nano calcium carbonate (nCaCO 3 ) particles was carried out with a soluble compound of lanthanum via a coating process of chemical deposition, and nCaCO 3 particles covered with a compound of lanthanum (nCaCO 3 La) were prepared. The polypropylene (PP)/nCaCO 3 and PP/nCaCO 3 La c…
Abstract The effects of corn starch (CS) filler and lysine diisocyanate (LDI) as a coupling agent on the crystallization behavior of a poly(butylene succinate) (PBS)/CS ecocomposite were investigated using differential scanning calorimetry. In isothermal crystallization, n values for pure PBS were from 2.33 to 2.82. O…
Abstract The improvement of the oxygen‐barrier properties of poly(ethylene terephthalate) (PET) via blending with an aromatic polyamide [poly( m ‐xylylene adipamide) (MXD6)] was studied. The compatibilization of the blends was attempted through the incorporation of small amounts of sodium 5‐sulfoisophthalate (SIPE) in…