Effect of Forced Convection by Crucible Design in Solution Growth of SiC Single Crystal
| Autor: | Masahiro Aoshima, Tomohisa Kato, N. Senguttuvan, Yuji Matsumoto, Koichi Takei, Toru Ujihara, Kazuhisa Kurashige, Masahiko Hiratani, Fujii Kuniharu, Hajime Okumura |
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| Rok vydání: | 2015 |
| Předmět: |
Centrifugal force
Convection Materials science Meteorology Mechanical Engineering Crucible Micro-pulling-down Mechanics Condensed Matter Physics Rotation Forced convection Physics::Fluid Dynamics Mechanics of Materials Combined forced and natural convection Condensed Matter::Superconductivity General Materials Science Convection cell |
| Zdroj: | Materials Science Forum. :22-25 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.821-823.22 |
| Popis: | In this paper, we will discuss how to cope with the smoother growth front and higher growth rate by the forced convection. When the rotation rate of the upper part of the solution is different from that of the lower part in the crucible, the centrifugal force of the upper part is different from that of the lower part. As a result, a forced convection occurs in the solution. This kind of convection was achieved with accelerating/decelerating rotation of crucible and a plate fixed on the bottom of the crucible. By optimizing conditions of rotation program patterns and the crucible design for the forced convection, the growth rate could almost be doubled while maintaining smooth morphology. |
| Databáze: | OpenAIRE |
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