METHOD FOR GROWING MONOCRYSTALS OF BISMUTH GERMANATE

A method comprises melting original material, extension for rotating seeding agent, growth of cone part of crystal, extension of cylindrical part thereof, separation of crystal from the melt is carried out by increasing rate of extension to 100-200 mm/min. with subsequent cooling at a rate of 100-15...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	BONDAR VALERII HRYHORIIOVYCH, PYROHOV YEVHEN MYKOLAIOVYCH, HRYNIOV BORYS VIKTOROVYCH, RYZHYKOV VOLODYMYR DIOMYDOVYCH, KRYVOSHEIN VADYM IVANOVYCH
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A method comprises melting original material, extension for rotating seeding agent, growth of cone part of crystal, extension of cylindrical part thereof, separation of crystal from the melt is carried out by increasing rate of extension to 100-200 mm/min. with subsequent cooling at a rate of 100-150 degrees /hour. Before separation at first power of heating is increased by 2-3 % at 2-5 s, kept for 3-7 minutes, then the heating power is reduced by 7-15 % at 2-5 s, then after 5-10 s the rate of rotation is reduced to 12-15 rotations/min, thereafter separation of crystal is carried out, and before cooling it is kept above melt at unchanged power during 20-30 minutes.