Materials Literature
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BiFeO 3 (BFO) thin films have been grown on vicinal SrTiO 3 (STO) (001) substrates by dual-ion-beam sputtering. The Bi/Fe composition ratio was optimized by adjusting the beam current ratio of a dual-ion beam. The domain structure was controlled using a vicinal STO substrate along <100> and <110>. From the…
ZnO and Al ‐doped ZnO ceramics with high density and fine grain size were prepared using a two‐step sintering method. ZnO ceramics with a grain size of 1.2 μm and a density greater than 99% were obtained. The kinetic window for a ZnO nanoparticle TSS process was determined in this study. Dense AZO ceramics with homoge…
Cyclic loadingunloading in tension and compression has been used to quantify the anelastic behaviour, in the form of hysteresis loops, of pure Mg and three MgAl alloys (0.5, 2, and 9 at.% Al). The eect reached a maximum at a plastic strain of 0.02 for all of the materials, and decreased at higher strains. The amount o…
A Zr2.5 wt%Nb alloy was processed by equal-channel angular pressing and then tested under creep conditions at 623 K using a tensile stress within the range from 120 to 300 MPa. The results show conventional power-law creep with a stress exponent of n > 3 which is consistent with an intragranular dislocation process in…
The magnetic, magnetotransport, and magnetocaloric properties near compound phase transitions in Ni50Mn35In14Z (Z = In, Ge, Al), and Ni48Co2Mn35In15 Heusler alloys have been studied using VSM and SQUID magnetometers (at magnetic fields (H) up to 5 T), four-probe method (at H = 0.005-1.5 T), and an adiabatic magnetocal…
This review presents the advantages of biogenic synthesis of metallic sulfide nanoparticles, compared to chemical synthesis processes. The impact of biogenically synthesized sulfide nanoparticles is discussed from ecological point of view. This review also discusses the morphological characteristics and mechanistic as…
From the nearly mass-less electron to massive ions, charged particle microscopes have diversified over the last few decades. At present, a broad range of available charged particles with varying masses fulfill many applications: from imaging to analysis to nanofabrication.
The corrosion behaviour of Ni surface in the absence and presence of caffeine in 3.5% NaCl solution is studied using electrochemical impedance spectroscopy, open circuit potential, electrochemical noise analysis and linear scan voltammetry. The corrosion rate of the nickel surface decreases and the inhibition efficien…
Perlite nano-particles were prepared through a mechanical grinding process and surface-modified by poly(methyl hydrogen siloxane) (PMHS). Nanocomposites based on low-density polyethylene (LDPE) and different compositions of treated and untreated nano particles were prepared via melt mixing of the ingredients on a co-r…
Cable joint is used to connect different sections of cable because a cable section is limited to a certain length. The design of a cable joint mainly depends on the cable type, the applied voltage and the cores. These factors contribute to the way of how electric field stress is distributed at the cable joint. If ther…
Formation conditions are studied for bionanocomposite films prepared by mixing cationic chitosan with negatively charged nanoparticles of a synthetic clay (saponite) followed by gradual increasing of the charge of macromolecules by decreasing the pH of a medium. The data on the swelling of the bionanocomposite films i…
High-energy synchrotron radiation powder diffraction experiments have been carried out to investigate the crystal structure of solvothermally synthesized KNbO 3 (KN)/BaTiO 3 (BT) nanocomposite ceramics in which a ceramic grain consists of a BT nanoparticle thinly coated with KN crystals through the heteroepitaxial int…
Although the high nonlinearity, strontium tetraborate crystal SrB4O7 is angular non-phasematched in UV SHG process due to its low birefringence. In this Letter, we revealed that its birefringence can be significantly enhanced by uniaxial strain based on the first principles computations. The birefringence is thirteen…
Abstract Summary: This work evaluated the influence of the synthesis temperature on the polyaniline (PANI) properties obtained by in‐situ polymerization onto a poly (terephthalate) (PET) substrate. The residual mass of these syntheses was dried under vacuum, obtaining PANI powders for each temperature investigated. PA…
The aim of this study was to investigate the eects of two dierent treatments, as-cast setup and solution heat treatment, on the general electrochemical corrosion resistance of Ti7Cu alloy samples immersed in a 0.9 wt% NaCl solution at 25 C. The microstructure was examined by scanning electron microscopy and X-ray dira…
Essential oil of aerial parts of Helichrysum italicum subsp. italicum was obtained by hydrodistillation and analyzed by GC and GC/MS. 54 compounds accounting for 97.1 % of the oil were identified. This essential oil was characterized by having a high content of oxygenated monoterpenes (45.9%) with neryl acetate was a…
This article describes a new on-line method for capacitance and dissipation factor measurements of high voltage bushings, for recording grid transients and for partial discharge monitoring at power transformers. Failure statistics identify HV bushings as one of the major reasons for transformer failures, which motivat…
The effects of Li substitution on the crystal structure and the strain properties of Bi0.5-(Na0.82K0.18)0.5(Ti0.95Sn0.05)O3 ceramics have been investigated. Li substitution enhanced the grain growth and densification, as well as the electric-field-induced strain (EFIS). Without Li substitution, the EFIS was 0.31% unde…
The thermal rectification has potential application in the thermal management of electronics and energy saving. This paper investigates the thermal rectification in silicon nanofilm with cone cavity by the non-equilibrium molecular dynamics simulation. The results show that the thermal resistance caused by the cone ca…
Piezoresponse force microscopy (PFM) has emerged as the tool of choice for characterizing piezoelectric and ferroelectric materials at nanoscale, yet the interpretation of PFM remains to be difficult and sometimes ambiguous. Built on earlier works, we developed a numerical integration scheme to analyze the expected PF…