Laser sintering of cold-pressed Cu powder without binder use
hal.structure.identifier | University of Nebraska–Lincoln | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | CONSTANTIN, Loïc | |
hal.structure.identifier | University of Nebraska–Lincoln | |
dc.contributor.author | FAN, Lisha | |
hal.structure.identifier | DGA/Mission pour la Recherche et l'Innovation Scientifique [DGA/MRIS] | |
dc.contributor.author | MORTAIGNE, Bruno | |
hal.structure.identifier | University of Nebraska–Lincoln | |
dc.contributor.author | KERAMATNEJAD, Kamran | |
hal.structure.identifier | University of Nebraska–Lincoln | |
dc.contributor.author | ZOU, Qiming | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
hal.structure.identifier | University of Nebraska–Lincoln | |
dc.contributor.author | AZINA, Clio | |
hal.structure.identifier | University of Nebraska–Lincoln | |
dc.contributor.author | LU, Yong Feng | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
hal.structure.identifier | University of Nebraska–Lincoln | |
dc.contributor.author | SILVAIN, Jean-François | |
dc.date.issued | 2018-11 | |
dc.identifier.issn | 2589-1529 | |
dc.description.abstractEn | In this work, laser sintering (LS) of cold-pressed copper (Cu) powder without using a binder was demonstrated. To promote the densification of the final part, the Cu powder was cold pressed beforehand, thereby forming a densely packed powder bed for the LS. The densification and microstructural evolution study show that the cold-pressed powder led to an increase of up to 11% in the relative density and a decrease of 10 times in the surface roughness. The influence of the scan speed on the densification and sintering quality was studied. A relatively slow scan speed, 25 µm/s, allowed sufficient atomic diffusion during the LS process and ultimately produced dense Cu parts without cracks and open pores. The introduction of the cold-pressing step into the LS process is critical for achieving high-density powder metallurgy parts without using binders. | |
dc.language.iso | en | |
dc.publisher | Elsevier | |
dc.subject.en | Cold pressing | |
dc.subject.en | Densification | |
dc.subject.en | Copper powder | |
dc.subject.en | Laser sintering (LS) | |
dc.title.en | Laser sintering of cold-pressed Cu powder without binder use | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1016/j.mtla.2018.08.021 | |
dc.subject.hal | Chimie/Matériaux | |
bordeaux.journal | Materialia | |
bordeaux.page | 178-181 | |
bordeaux.volume | 3 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-01916743 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-01916743v1 | |
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