When will copper contamination constrain global steel recycling?

Katie Daehn

University of Cambridge

Katie is a second-year PhD student with the "Use Less" group led by Professor Julian Allwood at the University of Cambridge. The broad goal for her PhD is to determine the feasibility and energy requirements for operating a steel circular economy, thus far focusing on the control of tramp elements. Katie wants to understand if we will be able to make tomorrow's demanded products using the projected scrap supply, and what interventions, strategies or new processes are needed to reduce quality losses in the mixing and melting of scrap metal.Katie graduated with an Honors Bachelors in Materials Science and Engineering and Honors Research Distinction in Welding Engineering from The Ohio State University in 2015. She grew up in Columbus, Ohio. She is the third generation of metallurgists in her family and is excited to be working in this area where metallurgy and sustainability meet.


Copper in steel causes metallurgical problems and cannot be removed from the melt. Globally trading scrap for use in tolerant applications and dilution with primary iron sources can manage contamination issues to an extent.... [ view full abstract ]


  1. Katie Daehn (University of Cambridge)
  2. André Cabrera Serrenho (University of Cambridge)
  3. Julian Allwood (University of Cambridge)

Topic Areas

• Management and technology for sustainable and resilient energy, water, food, materials, , • Circular economy , • Sustainable consumption and production


TS-10 » Materials Criticality and Resilience 2 (11:30 - Tuesday, 27th June, Room G)

Presentation Files

The presenter has not uploaded any presentation files.