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Journal of Materials Science

, Volume 42, Issue 18, pp 7745–7749 | Cite as

Comparative study of electrical and mechanical properties of fire-refined and electrolytically refined cold-drawn copper wires

  • Mònica Martínez
  • Ana I. Fernández
  • Mercè Segarra
  • Helena Xuriguera
  • Ferran EspiellEmail author
  • Núria Ferrer
Article

Abstract

A comparison is made between FRHC (fire-refined high-conductivity) and ETP (electrolytically tough pitch) copper wire in cold-drawn samples. Conductivity and mechanical properties are evaluated as a function of the annealing temperature. The fire-refined copper samples with controlled amounts of impurities show the higher annealing temperatures needed to achieve the 100.0% IACS (International Annealed Copper Standard) required to be an electrical conductor. Nevertheless, FRHC copper keeps its mechanical properties for a wider range of annealing temperatures than ETP copper, thereby becoming an interesting alternative for some industrial applications such as trolley wire or fire detection systems. The applicability as trolley wire is evaluated by comparing ETP copper with commercial grades, and an electrical conductivity-tensile strength chart for this application is presented.

Keywords

Copper Wire Copper Base Alloy Refined Copper International Anneal Copper Standard Fire Detection System 

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Mònica Martínez
    • 1
  • Ana I. Fernández
    • 1
  • Mercè Segarra
    • 1
  • Helena Xuriguera
    • 1
  • Ferran Espiell
    • 1
    Email author
  • Núria Ferrer
    • 2
  1. 1.Department of Materials Science and Metallurgical EngineeringUniversity of BarcelonaBarcelonaSpain
  2. 2.La Farga Lacambra, SAUBarcelonaSpain

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