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A hybrid electromagnetic-acoustic levitator for the containerless processing of undercooled meltsThe hybrid, acoustic-EM levitator discussed provides a small lifting force independently of its EM component by exciting an acoustic resonance that serves as a pressure node at the position of the EM-levitated specimen. The system also stabilizes and damps chaotic oscillations during specimen positioning, and can excite forced oscillations of levitated molten metals for drop-physics and thermophysical property measurements. Attention is given to the character and function of the atmosphere in the levitator. Noncontact temperature measurement is via single-color optical pyrometer.
Document ID
19920041113
Document Type
Conference Paper
Authors
Hmelo, Anthony B. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Banerjee, Sharbari (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wang, Taylor G. (Vanderbilt University Nashville, TN, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Subject Category
MATERIALS PROCESSING
Report/Patent Number
AIAA PAPER 92-0115
Funding Number(s)
CONTRACT_GRANT: JPL-958314
Distribution Limits
Public
Copyright
Other