Experiments were carried out to study the morphological stability of Bi- 1 atomic % Sn alloys using the MEPHISTO directional solidification apparatus aboard Space Shuttle Columbia (STS-87, launched Nov. 19, 1997) and in ground-based studies. The Seebeck signal and temperature measurements indicate that convection was significant for ground-based studies. In the space-based experiments, interface breakdown was observed at growth velocities of 6.7, 27, and 40 microns/sec, but not at 1.8 and 3.3 microns/sec.
In-Situ Monitoring of a Bismuth-Tin Alloy Solidification Using MEPHISTO
1999-02-01
Conference paper
No indication
English
In-Situ Monitoring of Crystal Growth Using Mephisto: Preliminary Flight Results
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