Method and device for producing secondary seeds

Method and device for producing secondary seeds

A device, or a method, for producing secondary seeds for the growth of single crystals from hydrothermal growth solutions has a growth container 10 which is intended to hold the hydrothermal growth solution 11 and into which at least two covers 12, 13 optionally fastened to a holder 14 dip. Those cr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ELLMEYER WALTER MAG, POSCH UWE, KRENN FRANZ
Format: Patent
Sprache:eng ; ger
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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Beschreibung
Zusammenfassung:A device, or a method, for producing secondary seeds for the growth of single crystals from hydrothermal growth solutions has a growth container 10 which is intended to hold the hydrothermal growth solution 11 and into which at least two covers 12, 13 optionally fastened to a holder 14 dip. Those crystal surfaces of a primary seed 1 which have a higher growth rate than other crystal surfaces of the primary seed 1 are therefore covered from the adjacent growth solution, the covers 12, 13 projecting beyond the edge of the covered crystal surfaces. It is in this way possible to control the shape and size of the secondary seeds needed for the actual crystal growth.