Development of Multi-Filament Textured-Powder Bi-2212/Ag Wire With Enhanced Local Area Ratio
- Texas A & M Univ., College Station, TX (United States)
- Accelerator Technology Corp, College Station, TX (United States)
- Texas A & M Univ., College Station, TX (United States); Accelerator Technology Corp, College Station, TX (United States)
- Commonweath Fusion Systems, Boston, MA (United States)
The performance and cost of Bi-2212/Ag wire is limited by the large fraction of Ag matrix (~3:1) that is required in the oxide-powder-in-tube fabrication process. An alternative fabrication process is being developed in which fine-powder Bi-2212 is uniaxially compressed to form bars with a thin Ag foil sheath. The fine powder naturally textures (aligns the a-b planes perpendicular to the direction of compaction) with texture >80% using 200 MPa compression. A billet is formed by stacking trapezoidal- cross-section bars in a symmetric 8-12-16 pattern around an Ag rod and enclosed in an Ag-wall extrusion can. Here, the billet is extruded and drawn to fine wire. Results are presented on present status of the development and testing.
- Research Organization:
- Accelerator Technology Corp., College Station, TX (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- SC0020716
- OSTI ID:
- 1847603
- Report Number(s):
- DOE-ATC-20716; TRN: US2303096
- Journal Information:
- IEEE Transactions on Applied Superconductivity, Vol. 31, Issue 5; Conference: International Cryogenic Materials Conference; ISSN 1051-8223
- Publisher:
- IEEECopyright Statement
- Country of Publication:
- United States
- Language:
- English
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