Materials Literature
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We investigate the self-assembly behavior of Janus particles with different geometries at a liquid-liquid interface. The Janus particles we focus on are characterized by a phase separation along their major axis into two hemicylinders of different wettability. We present a combination of experimental and simulation da…
In this work, we report the multifunctional character of neodymium-doped LaF₃ core/shell nanoparticles. Because of the spectral overlap of the neodymium emission bands with the transparency windows of human tissues, these nanoparticles emerge as relevant subtissue optical probes. For neodymium contents optimizing the…
Single-layer single-crystalline SnSe nanosheet with four-atomic thickness of ~1.0 nm and lateral size of ~300 nm is presented here by using a one-pot synthetic method. It is found that 1,10-phenanthroline plays an important role in determining the morphology of the SnSe product as three-dimensional SnSe nanoflowers ar…
In the article the spectroscopic properties of Yb<sup>3+</sup>/Ho<sup>3+</sup> codoped tellurite glass has been investigated. Upconversion luminescence at the wavelengths of 545 nm (<sup>5</sup>S<sub>2</sub> (<sup>5</sup>F<sub>4</sub>) → <sup>5</sup>I<sub>8</sub>) and 654 nm (<sup>5</sup>F<sub>5</sub> → <sup…
This report presents the first crystal structure determination of the mineral schaurteite, ideally Ca(3)Ge(SO(4))(2)(OH)(6)·3H(2)O, tricalcium germanium bis-(sulfate) hexa-hydroxide trihydrate. This single-crystal X-ray diffraction study investigated a natural sample from the type locality at Tsumeb, Namibia. Schaurte…
Ethanol is used as a precursor during the growth of zinc oxide (ZnO) by low-pressure chemical vapor deposition (LPCVD). By adding ethanol, the surface of the deposited ZnO layer is flattened and its roughness is decreased about sevenfold. The layers become increasingly stressed and their resistivity grows significantl…
In this study, porous ceramics having cordierite crystalline phases were made from kaolin, talc and α-alumina at 1200 °C for 1 h. Coal powders and starch were used as pore-forming materials, respectively. Physical and chemical properties and microstructure of two samples were studied. The study results indicate that t…
Abstract In order to investigate the influence of modified Keggin‐polyoxometalates and supported gold particles on reactivity and reaction pathways in thermal 2‐propanol oxidation, titanium‐substituted, insoluble Cs + ‐salts of the Keggin‐heteropolytungstate (H 3 PW 12 O 40 ) Cs 3 PW 12 O 40 1 , Cs 5 PW 11 TiO 40 · n…
The level of protective material performance attributes are well defined and highly regulated, however the attributes related to the thermo physiological comfort of materials are not. In this chapter, the application of new materials to firefighting protective clothing systems used in extreme heat is addressed, with a…
A novel method of preparation O-Carboxymethyl chitosan (OCMC) was studied that the product was prepared by reaction of Schiff's base of chitosan. Schiff base of chitosan (BCTS) was synthesized by the reaction of chitosan with aromatic aldehyde, then BCTS reacted with chloroacetic acid and removed the group of amino pr…
The structural, surface, and thermomechanical properties of intrinsic and argon incorporated tetrahedral amorphous carbon films deposited using the filtered cathodic vacuum arc process are reported. Argon atoms were simultaneously incorporated during the deposition of the films using an argon ion gun in the energy ran…
Non-polar ZnCdO films, grown over m- and r-sapphire with a Cd concentration ranging between 0.8% and 5%, have been studied by means of slow positron annihilation spectroscopy (PAS) combined with chemical depth profiling by secondary ion mass spectroscopy and Rutherford back-scattering. Vacancy clusters and Zn vacancie…
Over the past ten years, understanding the self-assembly process within mesostructured silica films has been a major concern. Our characterization approach relies on two powerful and complementary techniques: in situ time-resolved FTIR spectroscopy and ex situ solid-state NMR. As model systems, three silica/surfactant…
The study was aimed at assessing the potential of enzyme-embedded antibiotic-releasing polycaprolactone (PCL)-based electrospun fibres for tunable drug delivery. This was attempted by incorporation of gentamicin sulphate (GS) in the biocompatible polymer (PCL) matrix, with the degradation of the matrix being ensured b…
A scanning grating is designed and fabricated as a significant dispersing component of a microspectrometer. The designed scanning grating utilizes the slight vertical comb offsets induced mainly by the fabrication imperfections and residual stress in silicon on insulator (SOI) as starting electrodes. According to the…
Every few years, some samples of insulators should be taken from overhead lines to monitor their operational condition. Since most insulators are not installed in standard atmospheric conditions, their performance evaluation using flashover voltage needs a correction factor to obtain the real breakdown voltage from te…
The domain structure and its changes with temperature were investigated for an epitaxial NdCo 5 thin film with in-plane texture in which a spin-reorientation transition takes place from the easy c -axis via the easy cone to the easy plane. Scanning electron microscopy with polarization analysis reveals a transition fr…
Dense Z r B 2 ‐ S i C ceramics containing 40 vol% Z r C particles are fabricated via hot pressing method. Then the sintered ceramics are oxidized in air up to 1500°C, and the oxidation kinetics of the ceramic composites is deduced in combination with the reacted fraction curves. As indicated by the experimental result…
Thermal contact conductance of metal-dielectric systems is a key parameter that has to be taken into account for the design and reliability of nanostructured microelectronic systems. This paper aims to predict this value for Si-Cu interfaces using molecular dynamics simulations. To achieve this goal, a modified embedd…
A nonequilibrium phase (Sr1-xLax)Fe2As2was formed by epitaxial film-growth. The resulting films emerged superconductivity along with suppression of the resistivity anomaly, which is associated with magnetic and structural phase transitions. The maximum critical temperature was 20.8 K, which is almost the same as that…