Mohr M, Wunderlich RK, Hofmann DC, Fecht HJ. Thermophysical properties of liquid Zr
52.5Cu
17.9Ni
14.6Al
10Ti
5-prospects for bulk metallic glass manufacturing in space.
NPJ Microgravity 2019;
5:24. [PMID:
31667336 PMCID:
PMC6814819 DOI:
10.1038/s41526-019-0084-1]
[Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 10/04/2019] [Indexed: 11/12/2022] Open
Abstract
Bulk metallic glasses are of critical interest for a wide range of applications, including their use in spacecraft gearboxes and mechanisms due to their excellent low-temperature, unlubricated wear resistance. Also of interest, is the potential for in-space manufacturing of metal alloys and the use of microgravity to determine fundamental thermophysical properties to inform ground-based modeling and experimentation. In this work, a Zr-based bulk metallic glass was processed in the electromagnetic levitator ISS-EML to determine undercooling, electrical resistivity, specific heat capacity, surface tension, and viscosity. A 6.5 mm sphere was vitrified during the processing, resulting in the first bulk metallic glass manufactured on board the international space station (ISS).
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