NASA NTRS · 19910012050
High-temperature metal purification using a compact, portable rf heating and levitation system on the wake shield
Abstract
The potential use of a compact, battery-operated rf levitator and heating system to purify high-temperature melting materials in space is described. The wake shield now being fabricated for the Space Vacuum Epitaxy Center will provide an Ultra-high vacuum (10(exp -14) Torr hydrogen, 10(exp -14) Torr helium, 10(exp -30) Torr oxygen). The use of the wake shield to purify Nb, Ti, W, Ir, and other metals to a purity level not achievable on earth is described.
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Hahs, C. A.. 1990-05-01. High-temperature metal purification using a compact, portable rf heating and levitation system on the wake shield. https://ntrs.nasa.gov/citations/19910012050
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