The effect of low-temperature auto-ignition of W–Cu2O nanopowders with core-shell structure

Krinitcyn, M. G.; Svarovskaya, N. V.; Лернер, М. И.

doi:10.1016/j.vacuum.2021.110837

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“…The as-synthesized W/Cu particle metal may oxidize when exposed to air [21] and it is especially crucial for the copper whose electric resistance greatly depends on the content of oxygen. Therefore, particles should be subjected to hydrogen reduction before using any consolidation method.…”

Section: Introductionmentioning

confidence: 99%

Micron- and Nanosized Alloy Particles Made by Electric Explosion of W/Cu-Zn and W/Cu/Ni-Cr Intertwined Wires for 3D Extrusion Feedstock

et al. 2023

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A novel approach to electric explosion of intertwined wires to obtain homogeneous powder mixtures intended for preparing feedstock for extrusion 3D printing has been applied. The powder were composed of spherical micron- and nano-sized W/Cu particles in-situ alloyed by Zn and Ni during electric explosion of intertwined dissimilar metal wires is offered. The mean particle size measured by micron-sized particles was not more than 20 μm. The average number size of these particles was 3 μm and it was dependent on the energy input. The powders contained phases such as α-W, β-W/W3O as well as FCC α-Cu(Zn) and α-Cu(Ni) solid solutions with the crystalline lattice parameters 3.629 and 3.61 A, respectively.

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Section: Introductionmentioning

confidence: 99%