Powder-in-tube and thick-film methods of fabricating high temperature superconductors having enhanced biaxial texture
AssigneeUT-Battelle, LLC
InventorsAmit Goyal, Donald M. Kroeger
Life of this patent
Estimating the term…
Abstract
A method for forming an electronically active biaxially textured article includes the steps of providing a substrate having a single crystal metal or metal alloy surface, deforming the substrate to form an elongated substrate surface having biaxial texture and depositing an epitaxial electronically active layer on the biaxially textured surface. The method can include at least one annealing step after the deforming step to produce the biaxially textured substrate surface. The invention can be used to form improved biaxially textured articles, such as superconducting wire and tape articles having improved Jc values.
Claims47
A method for forming an electronically active biaxially textured article, comprising the steps of:
- providing a substrate having a single crystal metal or metal alloy surface;
- deforming said substrate in a plurality of incremental deformations to form an elongated substrate surface having a biaxial texture surface, and
- depositing an epitaxial electronically active layer on said biaxially textured surface.
A powder-in-tube (PIT) method for forming an electronically active biaxially textured article, comprising the steps of:
- providing a single crystal metal or metal alloy tube;
- filling the tube with at least one electronically active precursor of electronically active material;
- deforming said tube to form a biaxially textured sheath;
- annealing said tube, wherein an epitaxial biaxial electronically active layer is formed from said precursor on said biaxially textured sheath.
A method for forming textured alloy articles having biaxial texture, comprising the steps of:
- providing a substrate having a single crystal metal surface;
- deforming said substrate to form an elongated substrate surface having biaxial texture on said elongated substrate surface, and
- diffusing a second metal into said elongated substrate surface to form a biaxially textured alloy, said second metal being different from said first metal.
Dependencies are inferred from the claim text.