Published in Applied Physics A
A set of novel Co-free high-entropy alloys CrxFeNi(3-x)Al (x = 0.25, 0.5, 0.75, 1, 1.25, 1.5) were fabricated by non-self-consumable vacuum melting method, and their solidification microstructures as well as compression properties were investigated. The research results firstly demonstrate that the solidification microstructures of Cr-0.25, Cr-0.5 ...
Published in Applied Physics A
The processing of promising magnetocaloric materials into spheres is one of the important issues on developing high-performance magnetic refrigeration systems. In the present study, we achieved in producing spherical particles of a giant magnetocaloric compound HoB2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{...
Published in Applied Physics A
AbstractIn this study, we explore by numerical computation a very sensitive biosensor with a high detection accuracy, a bimetallic rhodium (Rh)/gold (Au) nanostructure is proposed. A further improvement of the sensitivity and figure of merit (FoM) is obtained by applying a layer of LiNbO3\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackag...
Published in Applied Physics A
Undoped and Ce-doped CuO nanoparticles were synthesized by an energy-efficient sol–gel combustion method with citric acid as fuel. The as-synthesized samples were further annealed at 600 and 800 °C. The X-ray diffraction results revealed that the synthesized samples exhibit a monoclinic structure with the impurity phase (CeO2) at 600 and 800 °C. Us...
Published in Applied Physics A
Pulsed laser ablation in liquid is a very efficient technique for the synthesis of nanoparticles in colloidal form. In order to maximize the applicability of this technique, it is imperative to understand the dynamics of the underlying phenomena like the generation of cavitation bubbles and shock waves. Hence, in the present work, the dynamics of t...
Published in Applied Physics A
The lead-free Na0.5Bi0.50.94Ba0.06TiO3\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\left( {{\text{Na}}_{0.5} {\text{Bi}}_{0.5} } \right)_{0.94} {\text{Ba}}_{0.06} {\...
Published in Applied Physics A
The impact of surface modification through diverse dyes (Eosin-Y, D205, N719 and N3) on structural, morphological, optical, and electrical properties of CdS/P3HT hybrid solar cells is studied. X-ray diffraction (XRD) pattern shows that CdS nanospheres have a hexagonal structure with a preferential orientation of (002) with respect to indium tin oxi...
Published in Applied Physics A
This work focuses on design and fabrication of selective and sensitive electrochemical sensor for detection of neurotransmitter drug dopamine on SnS-C quantum dots modified glassy carbon electrode. The microwave irradiation approach was used to make SnS-C quantum dots in a simple one-step process. Highly porous nanocrystalline SnS quantum dots were...
Published in Applied Physics A
Heusler-type Fe2V0.90+xTa0.10Al1−x alloys have been processed by high-pressure torsion (HPT) to improve the thermoelectric performance via a significant decrease in thermal conductivity. Before HPT processing, the x = 0.08 alloy (Fe2V0.98Ta0.10Al0.92) has a thermal conductivity of 6.0 W m−1 K−1 at 300 K and a dimensionless figure of merit up to ZT ...
Published in Applied Physics A
Magnetic nanoparticle-coated graphene oxide (GO) can be oriented in polymers under magnetic field due to the anisotropy of GO and excellent magnetism of magnetic nanoparticles. In this study, ferroferric oxide nanoparticles coated GO (Fe3O4-GO) was synthesized successfully using oxidation-coprecipitation method. The synthesized Fe3O4-GO was then ad...
