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TEMPUS-A microgravity electromagnetic levitation facility for parabolic flights.

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The TEMPUS facility uses electromagnetic levitation during parabolic flights to study metal melts without gravity-induced convection. This contactless method enables precise measurements of thermophysical properties and microstructure formation in undercooled liquids.

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Area of Science:

  • Materials Science
  • Physics
  • Aerospace Engineering

Background:

  • Studying thermophysical properties and microstructure formation of reactive melts is challenging due to gravity-induced convection and contamination.
  • Electromagnetic levitation (EML) offers contactless handling but is affected by strong levitation forces on Earth.
  • Parabolic flights provide short-duration microgravity, reducing these disturbing forces.

Purpose of the Study:

  • To detail the TEMPUS (Temperature and Materials Properties Under Space conditions) facility for contactless melt investigations.
  • To demonstrate the advantages of combining microgravity, EML, and contactless measurements for studying melts.
  • To present experimental planning, operation, and data recording within parabolic flight campaigns.

Main Methods:

  • Utilizing the TEMPUS electromagnetic levitation facility aboard an aircraft during parabolic flights (∼22 s free fall).
  • Employing contactless handling and measurement techniques to avoid sample contamination.
  • Leveraging reduced gravity to minimize electromagnetic levitation forces.

Main Results:

  • Successful investigation of thermophysical properties and microstructure formation of hot, reactive metal/semiconductor melts.
  • Extended sample temperature range into the undercooled liquid state.
  • Demonstrated significant advantages of microgravity-assisted EML for melt studies.

Conclusions:

  • The TEMPUS facility effectively enables contactless, undisturbed studies of melts in microgravity.
  • Combining microgravity and EML significantly enhances the study of thermophysical properties and microstructure.
  • This approach is crucial for advancing research on undercooled melts and reactive materials.