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Proceedings Paper

Containerless processing in reduced gravity using the TEMPUS facility
Author(s): Jan R. Rogers; Michael B. Robinson
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Paper Abstract

Containerless processing provides a high purity environment for the study of high-temperature, very reactive materials. It is an important method which provides access to the metastable state of an undercooled melt. In the absence of container walls, the nucleation rate is greatly reduced and undercooling up to (Tm-Tn)/Tm approximately 0.2 can be obtained, where Tm and Tn are the melting and nucleation temperatures, respectively. Electromagnetic levitation represents a method particularly well-suited for the study of metallic melts. The TEMPUS facility is a research instrument designed to perform electromagnetic levitation studies in reduced gravity. It provides temperatures up to 2600 degrees C, levitation of several grams of material and access to the undercooled state for an extended period of time (up to hours).

Paper Details

Date Published: 12 July 1996
PDF: 7 pages
Proc. SPIE 2809, Space Processing of Materials, (12 July 1996); doi: 10.1117/12.244346
Show Author Affiliations
Jan R. Rogers, NASA Marshall Space Flight Ctr. (United States)
Michael B. Robinson, NASA Marshall Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 2809:
Space Processing of Materials
Narayanan Ramachandran, Editor(s)

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