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Light-metal alloy detection using electrochemical sensing
Conferences & Talks

Spring Materials Research Society Meeting

8 March 2017



As vehicles become increasingly lightweighted to improve fuel economy, there will be greater need for recycling these alloys. Recycling the alloys will save energy (re-melting is far less energy-intensive than primary smelting) while lowering the cost of lightweight alloys. For high-value recycling, it is imperative to sort accurately to maintain the specific properties the material was alloyed to demonstrate. The state-of-the-art sorting methods are spectroscopic – they are expensive and have a fundamentally low signal-to-noise ratio for light elements, necessitating integration times of more than a minute. Long measurement times and high costs limit the economic incentive for recycling. We present a fast, accurate, and inexpensive alloy detection method based on a simple electrochemical mechanism.

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