Containerless processing in reduced gravity using the TEMPUS facility

Jan R. Rogers; Michael B. Robinson

doi:10.1117/12.244346

12 July 1996 Containerless processing in reduced gravity using the TEMPUS facility

Jan R. Rogers, Michael B. Robinson

Proceedings Volume 2809, Space Processing of Materials; (1996) https://doi.org/10.1117/12.244346
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

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).

Citation Download Citation

Jan R. Rogers and Michael B. Robinson "Containerless processing in reduced gravity using the TEMPUS facility", Proc. SPIE 2809, Space Processing of Materials, (12 July 1996); https://doi.org/10.1117/12.244346

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