On the Bridgman growth of lead–tin selenide crystals with uniform tin distribution
The application of T–x–y phase diagram for the control of the crystal composition of alloy crystals during Bridgman growth is illustrated using (Pb1−xSnx)1−δSe1+δ solid solutions as an example. Within the framework of the proposed approach, the axial segregation can be minimised if the feed composit...
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| Veröffentlicht in: | Journal of crystal growth 2009-06, Vol.311 (12), p.3257-3264 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | The application of T–x–y phase diagram for the control of the crystal composition of alloy crystals during Bridgman growth is illustrated using (Pb1−xSnx)1−δSe1+δ solid solutions as an example. Within the framework of the proposed approach, the axial segregation can be minimised if the feed composition is chosen in the regions of phase diagram where the iso-mole-fraction lines are perpendicular to isotherms. For the system Pb–Sn–Se the component distribution in crystals grown from a melt with δ=0, a Se-rich melt (δ>0) and a metal-rich melt (δ |
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| ISSN: | 0022-0248 1873-5002 |
| DOI: | 10.1016/j.jcrysgro.2009.03.031 |