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The Coarsening in Solid-Liquid Mixtures
(CSLM) experiment is a materials science space flight experiment whose purpose is to investigate the
kinetics of competitive particle growth within a liquid matrix. During coarsening, small particles
shrink by losing atoms to larger particles, causing the larger particles to grow. In this experiment
solid particles of tin will grow (coarsen) within a liquid lead-tin eutectic matrix. By conducting
this experiment in a microgravity environment, a greater range of solid volume fractions can be studied,
and the effects of convection present in terrestrial experiments will be negligible. The flight
hardware consists of two separable pieces of equipment, the sample processing unit (SPU) and the
electronic control unit (ECU).
The objective of this test, which was conducted on Tuesday, May 22, 2001, was to determine whether
the acoustic emission levels emitted from the CSLM-2 experiment met the noise emission limits for
Microgravity Science Glovebox (MSG) Investigations.
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