Plasma heating for containerless and microgravity materials proc

Details Plasma heating for containerless and microgravity materials proc Plasma heating for containerless and microgravity materials proc

1993-11-15

1994-12-20

Paschall, Mark H.

Electric heating

Metal heating

By arc

219123, 21912152, 21912159, 361144, B23K 1000

Patent

active

053748018

ABSTRACT:
A method for plasma heating of levitated samples for containerless microgravity processing is disclosed. A sample is levitated by electrostatic, electromagnetic, aerodynamic, or acoustic systems, as is appropriate for the physical properties of the particular sample. The sample is heated by a plasma torch at atmospheric pressure. A ground plate is provided to help direct the plasma towards the sample. In addition, Helmholtz coils are provided to produce a magnetic field that can be used to spiral the plasma around the sample. The plasma heating system is oriented such that it does not interfere with the levitation system.

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