Strength versus conductivity

Abstract

In the development of conductors for high-field coils one has to find a compromise between high strength (to i withstand the Lorentz force) and high conductivity (longer pulse time, minimal power, energy and volume required). Th e design of coils is a non-linear process that is partly based on educated guesses guided by trial and error. Based on the cor~cept of the "current carrying capability" a simple scheme for optimal choice of wire for the relatively simple cases of energy limited coils (or the innermost parts of power limited coils) is developed. On basis of this criterion, the optimal direction of research on new wires or materials is determined.

Beyond 60 T; a fruitful staircase to long-pulse 100 T fields

“…We will now consider the case of "isothermal" composite wires to show that further developments in ultrastrong conducting wires technology are of great importance. This aspect is developed in the related paper "strength versus conductivity" [2].…”

Microstructures and tensile deformation behavior of Cu–16wt.%Ag binary alloy

“…Therefore, this gives rise to an interesting question: whether one can fabricate some Cu-Ag binary alloys with high strength, good conductivity and elongation? Recently, some investigators have devoted to develop the Cu-Ag alloys for the application in high-field magnets [2][3][4][5]. During cold drawing and appropriate intermediate heat treatment, some Cu-Ag composites with high strength and high conductivity have been obtained [6][7][8][9][10].…”

Microstructure, mechanical properties and electrical conductivity of Cu–12 wt.% Ag wires annealed at different temperature

“…The main requirement for the conductor materials is the combination of high mechanical strength and good electrical conductivity. Cu-Ag is one of the most promising candidates for applications in magnet designs [4][5][6].…”