27 August 2017 to 1 September 2017
RAI Congress Center, Amsterdam, The Netherlands
Europe/Amsterdam timezone

Particle Reinforced Cu Matrix Conductors for High Field Pulsed Magnets

30 Aug 2017, 13:15
1h 45m
Posters Area

Posters Area

Poster Presentation of 1h45m F10 - Other Magnet Components Wed-Af-Po3.10

Speaker

Dr Ke Han (Nationa High Magnetic Field Laboratory)

Description

The high strength conductors used in pulsed magnets in the US National High Magnetic Field Laboratory (MagLab) are manufactured from Cu matrix composites. One of the composites is made from particle reinforced Cu. The fabrication of these composite conductors requires high deformation strain, which creates high densities of dislocations and reduced particle spacing. Both mechanical strength and electrical conductivity can be predicted from particle spacing and dislocation density. When dislocation density reaches a certain value, the particle size, distribution and shape becomes important to mechanical properties. We studied the particle size, distribution and shape in high-strength conductors with respect to the properties of the conductors. The two most important factors related to above parameters were dislocations near the interface between the particle and the matrix, and the stress concentration near the particles. By engineering these variations, the properties of the conductors can be optimized. This paper reports our understanding of the relationship between critical properties and particle distribution in composite conductors for high field pulsed magnets.
Acknowledgment: The work was undertaken in the National High Magnetic Field Laboratory, which is supported by NSF DMR-1157490, the State of Florida, and DOE.

Submitters Country USA

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Presentation Materials