GROWING EQUIPMENT OF LITHIUM TETRABORATE SINGLE CRYSTAL

PROBLEM TO BE SOLVED: To provide growing equipment of a lithium tetraborate single crystal with a high quality that eliminates problems of inclusion of not a few light scattering materials of 10 μm or less in the lithium tetraborate single crystal grown by the conventional vertical Bridgman method a...

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Bibliographische Detailangaben
Hauptverfasser:	WAKABAYASHI HIROKO, YOKOGAWA HIROSHI
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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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide growing equipment of a lithium tetraborate single crystal with a high quality that eliminates problems of inclusion of not a few light scattering materials of 10 μm or less in the lithium tetraborate single crystal grown by the conventional vertical Bridgman method and can prevent the generation of the light scattering material in the lithium tetraborate single crystal. SOLUTION: In the growing equipment of the lithium tetraborate single crystal by the vertical Bridgman method, it is constituted by arranging a holder implement at the bottom of a growing vessel and installing a cooling tube linked with the holding implement to compulsorily cool the holding implement.Thus, the generation of the light scattering material into the lithium tetraborate single crystal is controlled. COPYRIGHT: (C)2005,JPO&NCIPI