Materials Literature
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We theoretically propose a three-dimensional (3D) plasmonic ruler based on orthogonal plasmonic gap modes which have different wavelengths. The ruler consists of three silver nanoblocks with two ten-nanometer air gaps. First, in a two-block structure, the lateral displacement of one block can be determined by the abso…
A new theoretical route employing the concept of chemical hardness has been developed to predict the surface tension γ and the changes of the standard enthalpies (CSEs) of sublimation ΔsH0 of alkali halides. The values of these quantities have been calculated by means of the ratios ηM/V1/3m where ηM and Vm are the mol…
In this paper, we have investigated the structural, electronic and optical properties of ZnAl2Te4 defect chalcopyrite semiconductor using generalized gradient approximation (GGA) within density functional theory (DFT). We have calculated the optimized lattice constants (a and c) and compared with the available experim…
Abstract We report a simple experiment to demonstrate optically-driven resonance on a macroscopic object. Utilising dynamic force microscopy in ambient environment, the resonant motion of a cm-sized cantilever driven by an amplitude-modulated diode laser is directly observed. Our versatile setup involves a host of exc…
The present study explores the influence of variables like particle size of coal, load, speed and sliding distance on weight loss in manganese-steel (Mn-steel). The observations are made using pin-on-disc apparatus. Specimen prepared from Mn-steel used for the wear test. The size and shape of specimen is in accordance…
The article presents tests results of the influence of extrusion process on the microstructure and mechanical properties of magnesium alloy with lithium and rare earth elements with symbols LAE442 and LAE842.Microstructures of magnesium alloys after extrusion were compared with microstructure after casting and homogen…
The present work provides a study on high concentration of arsenic removal from acid leaching solution of zinc oxide dust by water-quenched slag. The water-quenched slag is a waste slag produced from fuming furnace of lead pyrometallurgical process and used as a substitute of ferrous sulfate heptahydrate to precipitat…
The barium titanate material is the most intensively studied perovskite material due to its wide use in the ceramic industry. Barium titanate is also technologically important material owing to its ferroelectric behaviour at and above room temperature. The paper presents an effective implementation of boundary element…
The properties of composite copper coatings with inclusions of ultradispersed diamonds (UDD) and diamond soot (DS) in copper citrate electrolyte have been investigated. The concentrations of diamond-containing additives have been varied in the range of 0.2–2 g/l. Sizes of copper microcrystals, UDD and DS particles wer…
Permasalahan pada struktur terowongan dan jembatan bentang panjang adalah kesulitan pengecoran dan sifat getas beton yang menyebabkan retak-retak. Maka, diperlukan penelitian tentang penambahan serat pada beton untuk mendapatkan beton dengan durabilitas dan workablity lebih baik. Penelitian ini bertujuan mengetahui pe…
UV–Visible spectra of (a) MMA series and (b) CMMA series show the contrasting differences in their film transparency.
layers on a silica glass substrate and by measuring the fluorescence intensity of a solution of quantum dots dropped on the chip.
INTRODUCTION: Chronic diseases, including myocardial scar healing and heart failure remission, impose huge social and economic burdens, and novel approaches are needed. Several therapeutic modalities are currently being evaluated, including cell therapy, stem cell conditioning, and cardiac tissue engineering. Areas co…
Abstract In its orthorhombic T d polymorph, MoTe2 is a type-II Weyl semimetal, where the Weyl fermions emerge at the boundary between electron and hole pockets. Non-saturating magnetoresistance and superconductivity were also observed in T d-MoTe2. Understanding the superconductivity in T d-MoTe2, which was proposed t…
Zn-Al-Cu alloys are characterised by very good tribological properties: high resistances to abrasive wear and adhesive wear, resistance to dry friction, low friction coefficient. Important disadvantages of Zn-Al alloys include, among others low structural and dimensional instability in as-cast stage and during long-pe…
A cast AZ91 magnesium alloy was processed via backward extrusion (BE) method at different temperatures of 250, 350 and 450C. Metallography investigations were conducted at three different regions of BE-processed cup (wall, bottom and flow channel). The main feature observed at the wall of the BE cup was mechanical twi…
The effect of cone size on interfacial bonding strength of bimetallic composite pipe manufactured by drawing approach is studied on base of the plane strain assumption and ideal elastic-plastic model, a simple expression for the effect of cone size on the bonding strength of bimetallic composite pipes is proposed. The…
This paper presents experimental testing of the mechanical characteristics and properties of samples made of high-strength low-alloy steel with two different multi pass V grove butt welded joint. Two sample groups are tested: the root pass is made by manual metal arc welding process for the former and metal inert gas…
Проведено акустико-эмиссионное исследование алюминиевых сплавов, подвергнутых испытаниям на статическое растяжение. Часть исследованных образцов содержала в рабочей части сварное соединение, что давало возможность выявить влияние на акустическую эмиссию дефектов, сосредоточенных в зоне сварного шва. При испытаниях опр…
Numerous researchers are closely connected with the production and studies of partially green biocomposites. Various polymer matrices, mainly polyolefines and natural fibres as reinforcement and their combinations, are used. Some scientists use various by-products of the timber industry in preparing wood plastic compo…