A METHOD OF WELDING SINGLE CRYSTALS

A method of single crystal welding is provided for the production of a single crystal region (1) on a surface (2) of a moncrystalline substrate (3) by means of an energy beam (4). The method of single crystal welding includes the supply of a coating material (5), the formation of a melt (6) b y melt...

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Bibliographische Detailangaben
1. Verfasser:	BETZ, JURGEN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE APPARATUS THEREFOR BLASTING CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CRYSTAL GROWTH CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINE TOOLS MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PERFORMING OPERATIONS 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 SOLDERING OR UNSOLDERING STEAM ENGINES TRANSPORTING UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A method of single crystal welding is provided for the production of a single crystal region (1) on a surface (2) of a moncrystalline substrate (3) by means of an energy beam (4). The method of single crystal welding includes the supply of a coating material (5), the formation of a melt (6) b y melting the coating material (5) by means of the energy beam (4) and the melting of a surface layer (71, 72) of the single crystal substrate (3) by t he energy beam (4). The characteristic (8) of the energy distribution in the energy beam (4) is set, in this connection, such that the lateral thermal flow (H1) from the melt into the single crystal substrate (3) is minimised.< /SDOAB>