Abstract
The coarsening of solid Sn-rich particles in Pb-Sn liquid in a microgravity environment is examined. Volume fractions from 0.1 to 0.8 are analyzed. The low volume fraction samples allow for a direct comparison to coarsening theories with out any adjustable parameters. It was found that the system was not coarsening in a self similar manner, but rather evolved toward the steady-state conditions predicted by theory. The steady-state regime was not reached, even though for volume fractions 0.1 and 0.2, there was a increase of the average particle size by a factor of nearly 3. Also the spatial correlations for volume fractions ≤ 0.3 evolved in time. The evolution of these volume fractions agree with the predictions of a theory describing transient coarsening. We show that the rate at which the coarsening process approaches steady-state decreases as the volume fraction increases.
| Original language | English (US) |
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| State | Published - Dec 1 2001 |
| Event | 2001 Conference and Exhibit on International Space Station Utilization - Cape Canaveral, FL, United States Duration: Oct 15 2001 → Oct 18 2001 |
Other
| Other | 2001 Conference and Exhibit on International Space Station Utilization |
|---|---|
| Country/Territory | United States |
| City | Cape Canaveral, FL |
| Period | 10/15/01 → 10/18/01 |
ASJC Scopus subject areas
- Space and Planetary Science
- Electrical and Electronic Engineering