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- Title
High Critical Current Density in the Textured Nanofiber Structure in Multifilament MgB 2 Wires Made by the Powder-In-Tube (PIT) Technique.
- Authors
Gajda, Daniel; Zaleski, Andrzej J.; Morawski, Andrzej J.; Małecka, Małgorzata; Tran, Lan Maria; Rindfleisch, Matt; Durejko, Tomasz; Czujko, Tomasz
- Abstract
We show that the structure of multifilament MgB2 wires made by the powder-in-tube (PIT) method can be texturized by annealing the structure under high isostatic pressure. Our results show that we obtained continuous fibers with a uniform diameter of 250 nm in all 36 filaments, a small grain size of approximately 50 nm and a high density of the superconducting material. These results contribute to a significant improvement in the critical current density in high magnetic fields, e.g., 100 A/mm2 at 14 T and 4.2 K.
- Subjects
CRITICAL currents; SUPERCONDUCTING wire; SUPERCONDUCTORS; MAGNETIC fields; GRAIN size
- Publication
Materials (1996-1944), 2022, Vol 15, Issue 15, p5419
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma15155419