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Thermocapillary convection in floating zones under simulated reduced-gravity conditions
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Kou, Sindo |
| Copyright Year | 1997 |
| Description | The objective was to study thermocapillary convection in a transparent floating zone. The floating zone process is a unique process for crystal growth in that the melt is free from contamination by a crucible. Microgravity is ideal for the floating zone process because there is no significant gravity to cause the molten zone to collapse as under normal gravity. Since gravity-induced buoyancy convection is suppressed, surface- tension-induced thermocapillary convection dominates in the molten zone. In floating zone crystal growth, thermocapillary convection can be strong enough to cause formation of dopant striations and a convex growth front - both are undesirable in crystal growth. |
| File Size | 95356 |
| Page Count | 5 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19980001897 |
| Archival Resource Key | ark:/13960/t0vq7w063 |
| Language | English |
| Publisher Date | 1997-07-16 |
| Access Restriction | Open |
| Subject Keyword | Materials Processing Collapse Crystal Growth Zone Melting Striation Buoyancy Float Zones Crucibles Capillary Flow Convexity Microgravity Convection Transparence Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
