Solidification of Eutectic Bi32.5In51Sn16.5 Alloy under Microgravity Using a Drop Tube-Reference-Cited by-同舟云学术

Solidification of Eutectic Bi_32.5In₅₁Sn_16.5 Alloy under Microgravity Using a Drop Tube

Published:2010-10 Issue: Volume:660-661 Page:587-592
ISSN:1662-9752
Container-title:Materials Science Forum
language:
Short-container-title:MSF

Author:

Toledo Rafael Cardoso¹,Mattos M.B.¹,An Chen Y.¹,Bandeira I.N.¹

Affiliation:

1. Instituto de Pesquisas Espaciais - INPE

Abstract

Containerless solidification of Bi32.5In51Sn16.5 eutectic alloy under microgravity conditions was investigated by using a 3 m length drop tube. The Bi-In-Sn system is an important material for lead-free solder and fuse element for electrical protection. It has a low eutectic melting temperature of 60°C, which is suitable for experiments in restricted environments like the International Space Station (ISS), where the security requirements are very strict. Droplets, with diameters in the range of 200 to 400 m, solidified under microgravity, were obtained consistently with irregular ternary eutectic structure, whereas, previous results under normal gravity presented both regular lamellar and irregular structures.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

https://www.scientific.net/MSF.660-661.587.pdf

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