Investigation on the mechanical properties of sintered porous copper compacts

Ahmed, Y. M. Z.; Riad, M.I.; Zaky, A.I.; Abdelaziz, M. H.; Shalabi, Mohamed M.H.

doi:10.1016/j.cpart.2007.09.001

Cited by 7 publications

(1 citation statement)

References 10 publications

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“…5a). Figure 5b summarizes the compressive yield strength of porous Cu parts versus relative lattice density [47][48][49][50][51] . The lattice made of LaB 6 -doped Cu has a yield strength of 23 MPa at a relative lattice density of 0.3, which is 3.5 times higher than the strength of the same lattice made of pure Cu of the same relative lattice density.…”

Section: Mechanical and Conductivity Propertiesmentioning

confidence: 99%

Manufacturing of high strength and high conductivity copper with laser powder bed fusion

Liu,

Zhang,

Niu

et al. 2024

Nat Commun

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Additive manufacturing (AM), known as 3D printing, enables rapid fabrication of geometrically complex copper (Cu) components for electrical conduction and heat management applications. However, pure Cu or Cu alloys produced by 3D printing often suffer from either low strength or low conductivity at room and elevated temperatures. Here, we demonstrate a design strategy for 3D printing of high strength, high conductivity Cu by uniformly dispersing a minor portion of lanthanum hexaboride (LaB6) nanoparticles in pure Cu through laser powder bed fusion (L-PBF). We show that trace additions of LaB6 to pure Cu results in an improved L-PBF processability, an enhanced strength, an improved thermal stability, all whilst maintaining a high conductivity. The presented strategy could expand the applicability of 3D printed Cu components to more demanding conditions where high strength, high conductivity and thermal stability are required.

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