Results 31 to 40 of about 337,493 (302)

ELECTRODEPOSITION OF COPPER POWDER FROM MIXTURE SULPHATE –CHLORIDE ACIDIC SOLUTION

open access: yesIraqi Journal for Mechanical and Materials Engineering, 2018
This paper studies the preparation of Copper powder from Copper Sulphate aqueous solution(CuSO4.5H2O), sulfuric acid (H2SO4) and copper chloride (CuCl2.2H2O)by using the process of electro-deposition.
Sundus A Jasim
doaj   +1 more source

Partially alloyed copper powder

open access: yesMetal Powder Report, 1991
Abstract Generally copper-based sintered materials are manufactured by compacting and sintering either a mixture of copper powder and other metal powders, or atomized alloy powders. However, the mixed powder is easy to segregate and the alloyed powder is inferior in compactibility.
O. Iwatsu   +3 more
openaire   +1 more source

Josephson squelch filter for quantum nanocircuits

open access: yes, 2009
We fabricated and tested a squelch circuit consisting of a copper powder filter with an embedded Josephson junction connected to ground. For small signals (squelch-ON), the small junction inductance attenuates strongly from DC to at least 1 GHz, while ...
C. J. P. M. Harmans   +5 more
core   +1 more source

Influence of Shielding Gas and Mechanical Activation of Metal Powders on the Quality of Surface Sintered Layers [PDF]

open access: yes, 2016
The thesis analyses the influence of argon shielding gas and mechanical activation of PMS-1 copper powder and DSK-F75 cobalt chrome molybdenum powder on the surface sintered layer quality under various sintering conditions.
Arkhipova, D. A.   +2 more
core   +1 more source

An Oxalate-Bridged Copper(II) Complex Combining Monodentate Benzoate, 2,2'-bipyridine and Aqua Ligands:Synthesis, Crystal Structure and Investigation of Magnetic Properties [PDF]

open access: yes, 2020
A dinuclear copper(II) complex of formula [{Cu(bipy)(bzt)(OH2)}2(μ-ox)] (1) (where bipy = 2,2'-bipyridine, bzt = benzoate and ox = oxalate) was synthesised and characterised by diffractometric (powder and single-crystal XRD) and thermogravimetric (TG/DTG)
Briganti, Matteo   +7 more
core   +1 more source

Sintering behavior of Cu-Al pre-alloyed powder

open access: yesJin'gangshi yu moliao moju gongcheng
ObjectivesDiamond tools are required to possess high self-sharpening properties and long service life. The method of adding low-melting point elements with copper, iron, and other elements to form intermetallic compounds is used to enhance the hardness ...
Qi YU   +5 more
doaj   +1 more source

Ultrasonic preparation, stability and thermal conductivity of a capped copper - methanol nanofluid [PDF]

open access: yes, 2019
This paper describes a two-step method to prepare novel copper-methanol nanofluids capped with a short chain molecule, (3-Aminopropyl)trimethoxysilane (APTMS).
Emekwuru, Nwabueze   +3 more
core   +1 more source

Using hydrophilic ionic liquid, [bmim]BF4-ethylene glycol system as a novel media for the rapid synthesis of copper nanoparticles. [PDF]

open access: yesPLoS ONE, 2012
In this work, we present a novel method for the synthesis of copper nanoparticles. We utilize the charge compensatory effect of ionic liquid [bmim]BF(4) in conjunction with ethylene glycol for providing electro-steric stabilization to copper ...
Manika Dewan   +4 more
doaj   +1 more source

Copper Nanoparticles Prepared fromOxalic Precursors [PDF]

open access: yes, 2011
The synthesis of nanoparticles of copper metal via a soft chemistry route is presented in this paper. The method is based on the thermal decomposition under nitrogen or hydrogen of oxalic precursors with a well-controlled morphology and particle size ...
Baco-Carles, Valérie   +2 more
core   +4 more sources

Influence of layer-by-layer laser sintering conditions on the quality of sintered surface layer of products [PDF]

open access: yes, 2015
The influence of technological modes of sintering: the displacement velocity of laser beam V, laser power P, scanning step S and preheating temperature of powder material t on the quality of sintered surface layer of aluminum powder PA-4, copper powder ...
Borovikov, I. F.   +3 more
core   +1 more source

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