Formation of porous inner architecture at the interface of magnetic pulse welded Al/Cu joints

Porous inner architecture has been revealed at the interface of magnetic pulse welded aluminum/copper (Al/Cu) joints. These materials could serve the purpose of heterogeneous architectured materials, while their makeup of inner architecture of porous interface with the pore sizes of sub-micron to a...

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Bibliographic Details
Main Authors: Sapanathan, T., Raoelison, R. N., Yang, K., Buiron, N., Rachik, M.
Format: Conference Proceeding
Language:English
Subjects:
Air gaps
Aluminum
Architecture
Cavitation
Coalescing
Copper
Electric potential
Energy storage
Morphology
Porous media
Welding
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Summary:Porous inner architecture has been revealed at the interface of magnetic pulse welded aluminum/copper (Al/Cu) joints. These materials could serve the purpose of heterogeneous architectured materials, while their makeup of inner architecture of porous interface with the pore sizes of sub-micron to a few microns, could offer potential attributes in energy storage application. Two welding cases with various impact intensities are compared. An input voltage of 6.5 kV with an initial air gap of 1.5 mm and a higher voltage of 7.5 kV with a large initial air gap of 5 mm are respectively considered as two cases with low and high velocity impacts. Overall morphology of the porous medium was revealed at the interface either in layered or pocketed structures. The allocation of the porous zone and pore sizes vary with the impact condition. The low velocity impact welding conditions also produces smaller pores compared to the high velocity impact case, where the pore sizes varies in submicron to a few microns (
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4963505