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Related papers: X-Ray Diffraction Studies of Copper Nanopowder

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Co-reduction of multicomponent oxides with hydrogen provides a carbon-neutral approach toward sustainable alloy design. Herein, we investigate the hydrogen-based direct reduction, using in-situ high-energy X-ray diffraction of two precursor…

Materials Science · Physics 2025-10-09 Shiv Shankar , Barak Ratzker , Claudio Pistidda , Dierk Raabe , Yan Ma

Density functional theory and density functional tight-binding are applied to model electron transport in copper nanowires of approximately 1 nm and 3 nm diameters with varying crystal orientation and surface termination. The copper…

A major step towards the understanding of intrinsic properties of nano-objects depends on the ability to obtain assemblies of nanoparticles of a given size with reduced size dispersion and a well defined shape. The control of these…

Atomic and Molecular Clusters · Physics 2008-07-28 D. Alloyeau , C. Ricolleau , C. Langlois , Y. Le Bouar , A. Loiseau

Optical properties and morphology of laser generated Aluminum and Copper phthalocyanine nanoparticles (nAlPc and nCuPc) in water are experimentally studied. Near infrared laser source of nanosecond pulse duration was used for fragmentation…

General Physics · Physics 2019-04-12 I. I. Rakov , S. M. Pridvorova , G. A. Shafeev

Single-molecule based 3rd generation DNA sequencing technologies have been explored with tremendous effort, among which nanopore sequencing is considered as one of the most promising to achieve the goal of $1,000 genome project towards…

New Experiments with Spheres-Gas (NEWS-G) is a dark matter direct detection experiment that will operate at SNOLAB (Canada). Similar to other rare-event searches, the materials used in the detector construction are subject to stringent…

A comprehensive study of pulsed nitriding in AISI H13 tool steel at low temperature (400{\deg}C) is reported for several durations. X-ray diffraction results reveal that a nitrogen enriched compound (Epsilon-Fe2-3N, iron nitride) builds up…

Materials Science · Physics 2012-12-17 L. F. Zagonel , J. Bettini , R. L. O. Basso , P. Paredez , H. Pinto , C. M. Lepienski , F. Alvarez

Size selection of liquid-dispersed 2D nanomaterials is a prerequisite for size-dependent studies in earlier stage research and for their targeted application in commercial settings. Centrifugation is the most widespread method for reliably…

Carbon nanotubes play a fundamental role in the rapidly developing field of nanoscience and nanotechnology because of their unique properties and high potential applictions. In this article, the different synthesis method of CNTs are…

Materials Science · Physics 2007-05-23 Kalpana Awasthi , Anchal Srivastava , O. N. Srivastava

A complex oxalate precursor, CaCu3(TiO)4(C2O4)8.9H2O, was synthesized and the precipitate that obtained was confirmed to be monophasic by the wet chemical analyses, X-ray diffraction, FTIR absorption and TG, DTA analyses. The thermal…

Materials Science · Physics 2013-01-21 P. Thomas , K. Dwarakanath , K. B. R. Varma , T. R. N. Kutty

Liquid phase exfoliation is a commonly used method to produce 2D nanosheets from a range of layered crystals. However, such nanosheets display broad size and thickness distributions and correlations between area and thickness, issues that…

Measurements of polarization and temperature dependent soft x-ray absorption have been performed on Na_xCoO_2 single crystals with x=0.4 and x=0.6. They show a deviation of the local trigonal symmetry of the CoO_6 octahedra, which is…

Strongly Correlated Electrons · Physics 2009-11-11 T. Kroll , M. Knupfer , J. Geck , C. Hess , T. Schwieger , G. Krabbes , C. Sekar , D. R. Batchelor , H. Berger , B. Buechner

We report a new approach to achieve growth of highly crystalline nickel nanoparticles over an extended range of sizes (up to 100 nm in diameter) and time scales (up to several hours) by diffusional transport of constituent atoms. The…

Materials Science · Physics 2013-04-23 Igor Sevonkaev , Vladimir Privman , Dan Goia

Metal-polymer nanocomposites have been investigated extensively during the last years due to their interesting functional applications. They are often produced by vapor phase deposition which generally leads to the self-organized formation…

Materials Science · Physics 2013-09-19 L. Rosenthal , H. Greve , V. Zaporojtchenko , T. Strunskus , F. Faupel , M. Bonitz

We report the absorption/transmission properties of thin copper films slightly below the percolation limit produced by laser ablation; these samples show randomly positioned islands. Two types of films are grown: in the first type, copper…

Mesoscale and Nanoscale Physics · Physics 2017-12-27 Luis Guillermo Mendoza-Luna , Eva Mayra Rojas-Ruiz , José Luis Hernández-Pozos

We detail experimental results inferring ionization and temperature for warm dense copper plasmas at several times solid density (15 to 25 g/cm$^3$) and temperatures of 10 to 21 eV. Experiments performed at the OMEGA Laser Facility generate…

Homogenous graphitic nanofibres (GNFs) have been synthesised by heat treatment of electrospun polyacrylonitrile in dimethylsulphoxide, offering a new solution route of low toxicity to manufacture sub-60 nm diameter GNFs. Fibre beading…

Materials Science · Physics 2010-05-28 Zeynep Kurban , Arthur Lovell , Derek Jenkins , Steve Bennington , Ian Loader , Alex Schober , Neal Skipper

Truly spherical silver nanoparticles are of great importance for fundamental studies including plasmonic applications, but the direct synthesis in aqueous media is not feasible. Using the commonly employed copper-based etching processes,…

We established a production method of a good millimeter-wave absorber by using a 3D-printed mold. The mold has a periodic pyramid shape, and an absorptive material is filled into the mold. This shape reduces the surface reflection. The…

Instrumentation and Methods for Astrophysics · Physics 2020-01-22 S. Adachi , M. Hattori , F. Kanno , K. Kiuchi , T. Okada , O. Tajima

The nanoparticles (NPs) of Zn1-xCuxFe2O4 (ZCFO) spinels with x = 0, 0.2, 0.4, 0.6 and 0.8 were synthesized by a sol-gel combustion method using acetate precursor. The NPs of ZCFO were prepared by following calcination process at 600C for…

Materials Science · Physics 2019-10-02 Dinesh Kumar , Abhishek Kumar , Rajiv Prakash , Akhilesh Kumar Singh