Method for manufacturing a HTS coated tape with laser beam cutting

摘要

A method for manufacturing of a high temperature superconductor (=HTS) coated tape (20), with the following steps:
a) preparation of a substrate tape (1),
b) deposition of at least one buffer layer (2),
c) deposition of an HTS film (3),
d) deposition of a metallic protection layer (35) on the HTS film (3),
e) deposition of a metallic shunt layer (36),
is characterized in that earlier than the deposition of the metallic shunt layer (36), the partially prepared coated tape (10) undergoes a laser beam cutting in order to provide a desired tape form,
wherein the laser beam cutting is applied together with a gas flow and/or a liquid flow (23). The inventive method reduces the loss of the critical current and reduces or avoids a deterioration of the critical temperature in a HTS coated tape due to tape cutting.