Production of metallic strips for deposition of biaxially textured layers of superconductor material comprises forming alloy containing nickel, copper, silver or their alloys and additive, rolling, recrystallization annealing and annealing

摘要

Production of metallic strips comprises initially forming an alloy containing nickel, copper, silver or their alloys and 0.2-5 at.% of an additive selected from oxidizable, nitridable, boridable and/or carbidable elements; rolling into a strip; recrystallization annealing; and annealing. Production of metallic strips made of nickel, copper, silver or their alloys comprises initially forming an alloy containing nickel, copper, silver or their alloys and 0.2-5 at.% of an additive selected from oxidizable, nitridable, boridable and/or carbidable elements; rolling into a strip; recrystallization annealing; and annealing under an oxygen, nitrogen, boron or carbon partial pressure which lies above the equilibrium partial pressure of the oxides, nitrides, borides and carbides of the additive elements but below the equilibrium partial pressure of the oxides, nitrides, borides and carbides of the base elements. Preferred Features: The additive is present in an amount of 1-2 at.%. The strip is annealed in oxygen at 750-1000 deg C.