METHOD AND APPARATUS FOR PULLING-DOWN SINGLE CRYSTAL

PROBLEM TO BE SOLVED: To provide a method for obtaining a hollow single crystal from the melt of a raw material having inferior wettability to a crucible. SOLUTION: The melt 8 of the raw material 7 held inside the crucible 11 having a cylindrical shape with a plugged bottom and a through-hole 11b pe...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TODA KAZUSHIGE, ONODERA AKIRA
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE APPARATUS THEREFOR CHEMISTRY CRYSTAL GROWTH METALLURGY PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE REFINING BY ZONE-MELTING OF MATERIAL SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE SINGLE-CRYSTAL-GROWTH UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL
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