Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
This is the eleventh issue of physica status solidi (b) focussed on materials and models exhibiting negative Poisson's ratio (PR), called auxetics, and other systems of “negative” characteristics 1. It contains 22 papers, from which the first 17 papers concern auxetics, the following 4 are related to negative stiffnes…
First Name is required invalid characters Last Name is required invalid characters Email Address is required Invalid Email Address Invalid Email Address
A novel method of the ion-beam-induced crystallization of quantum-size semiconductor eterostructures has been proposed. Using atomic force (AFM) and transmission electron microscopy (TEM), the capacitance–voltage ( C – V ) method, and photoluminescence (PL) measurements, we have studied the main regularities of ion-be…
In this work, we report that the biodistribution and excretion of carbon nanohorns (CNHs) in mice are dependent on their size and functionalization. Small-sized CNHs (30-50 nm; S-CNHs) and large-sized CNHs (80-100 nm; L-CNHs) were chemically functionalized and radiolabeled with [(111)In]-diethylenetriaminepentaacetic…
Geopolymers can be transformed into ceramics upon sintering. This paper reports the effect of temperature on the physical, mechanical properties and characteristics of kaolin geopolymer ceramic. The nepheline ceramic was fabricated through geopolymerization. The geopolymer samples were exposed to temperature from 900…
2,6-lutidine molecules mix with water at high and low temperatures but in a wide intermediate temperature range a 2,6-lutidine/water mixture exhibits a miscibility gap. We constructed and validated an atomistic model for 2,6-lutidine and performed molecular dynamics simulations of 2,6-lutidine/water mixture at differe…
To extend the working life of molds in continuous-casting machines, a heat- and wear-resistant layer is formed on the narrow M1 copper walls prior to final repair, by spraying on aluminum and chromonickel coatings. The first step is to determine the coating structure, phase composition, and the hardness and microhardn…
We define V (α, β) (α < 1 and β > 1), the new subclass of analytic functions with bounded positive real part, $$V\left( {\alpha ,\beta } \right): = \left\{ {f \in A:\alpha < \operatorname{Re} \left\{ {{{\left( {\frac{z}{{f\left( z \right)}}} \right)}^2}f'\left( z \right)} \right\} < \beta } \right\}$$ , and study some…
Magnetic shielding made from permalloy is frequently used to provide a time-stable magnetic field environment. A low magnetic field and low field gradients inside the shield can be obtained by using demagnetization coils through the walls, encircling edges of the shield. We first introduce and test the computational m…
In this study, cold metal transfer (CMT) plug welding of 1 mm thick Mg AZ31 to 1 mm thick hot-dipped galvanized mild steel (i.e., Q235) was studied. Welding tests were performed and the process variables optimized with Mg AZ61 wire and 100% argon shielding gas for a plug weld located in the center of the 25 mm overlap…
Wrinkles commonly develop in a thin film deposited on a soft elastomer substrate when the film is subject to compression. Motivated by recent experiments [Agrawal et al., Soft Matter 8, 7138 (2012)]1744-683X10.1039/c2sm25734c that show how wrinkle morphology can be controlled by using a nematic elastomer substrate, we…
The study was carried out to determine radioactivity concentrations in surface soil samples of the city of Edirne in connection with the potential radiological hazards due to Chernobyl event. The natural radionuclide ((226)Ra, (232)Th and (40)K) contents were determined for nine different locations in nine different t…
The possibility of attaining an superhard state in multilayer vacuum-arc ZrN/CrN coatings with a layer thickness of about 20 nm has been established. It has been shown that the application of a constant negative potential for structural engineering during deposition leads to the formation of solid solutions due to mix…
The validity of virial analysis to infer global MHD equilibrium poloidal beta βp and internal inductance ℓi from external magnetics measurements is examined for low aspect ratio configurations with A<2. Numerical equilibrium studies at varied aspect ratio are utilized to validate the technique at finite aspect ratio.…
We report the structural, electronic, and magnetic study of Cr-doped Sb 2 Te 3 thin films grown by a two-step deposition process using molecular-beam epitaxy (MBE). The samples were investigated using a variety of complementary techniques, namely, x-ray diffraction (XRD), atomic force microscopy, SQUID magnetometry, m…
The present paper describes a novel way to detect early stages in the gradual transformation of SAE 52100 bearing steel material to white etching cracks (WEC). The underlying transformation is recorded and investigated by a complementary use of Barkhausen noise measurements, ultrasonic measurements and scanning electr…
Seedless okra pods were extracted in 0.05 M NaOH, freeze-dried (OE) and added to pudding formula at 0, 2, 4, 6 and 8%. The effect of OE on the quality of pudding was investigated using rapid visco-analyzer (RVA), Brookfield viscometer and texture analyzer, in addition to sensory evaluation. The RVA data showed that sa…
The system steel-slag-refractory and reactions of non-metallic inclusions at its interfaces are decisive in numerous metallurgical processes. In order to obtain the desired steel cleanness level, a detailed understanding of the occurring interactions is needed. This study focuses on the in-situ observation of differen…
Thermocapillary breakdown of a liquid film flowing due to gravity over a vertical plate with a heater of 150×150 mm is studied in a wide range of liquid properties (in particular, dynamic viscosity at the initial temperature varies from 0.91·10 -3 to 16.9·10 -3 Pa·s) and film Reynolds number (Re = 0.15-53.5). It is fo…
Abstract Parameters of specific surface area as well as surface charge were used to determine and compare sorption properties of soils with different physicochemical characteristics. The gravimetric method was used to obtain water vapour isotherms and then specific surface areas, whereas surface charge was estimated f…