A method of welding single crystals

C - Chemistry – Metallurgy – 30 – B

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C30B 33/04 (2006.01) B23K 26/34 (2006.01) C30B 11/00 (2006.01) C30B 13/00 (2006.01) C30B 19/00 (2006.01) C30B 33/06 (2006.01) F01D 5/00 (2006.01)

Patent

CA 2423146

A method of single crystal welding is provided for the production of a single crystal region (1) on a surface (2) of a monocrystalline 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) by 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 the energy beam (4). The characteristic (8) of the energy distribution in the energy beam (4} is s.et, in this connection, such that the lateral thermal flow (H1) from the melt into the single crystal substrate (3) is minimized.

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