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).

Details

Title
Thermophysical properties of liquid Zr52.5Cu17.9Ni14.6Al10Ti5—prospects for bulk metallic glass manufacturing in space
Author
Mohr, M 1 ; Wunderlich, R K 1 ; Hofmann, D C 2 ; H-J Fecht 1 

 Institute of Functional Nanosystems, Ulm University, Albert-Einstein-Allee 47, Ulm, Germany 
 Materials Development and Manufacturing Technology Group, NASA Jet Propulsion Laboratory /California Institute of Technology, Pasadena, CA, USA 
Pages
1-8
Publication year
2019
Publication date
Oct 2019
Publisher
Nature Publishing Group
e-ISSN
23738065
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2309512484
Copyright
© 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.