, Volume 47, Issue 11, pp 36–40 | Cite as

Electrochemical magnesium sensors for Use in aluminum processing

  • Jeffrey W. Fergus
Aluminum Overview


Improvements in process control during the production and reclamation of aluminum alloys can be achieved through in-situ measurement of the magnesium content in the molten alloy. Electrochemical sensors are compact, can be inserted directly into molten aluminum, and produce a continuous direct current voltage proportional to the logarithm of the magnesium content. This article describes and compares electrochemical magnesium sensors based on three different electrolytes— MgCl2-CaCl2, MgF2, and β″ alumina.


Oxygen Partial Pressure Solid Electrolyte MgF2 Magnesium Content Molten Alloy 
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Copyright information

© TMS 1995

Authors and Affiliations

  • Jeffrey W. Fergus
    • 1
  1. 1.Auburn UniversityUSA

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