Development of Multi-Filament Textured-Powder Bi-2212/Ag Wire With Enhanced Local Area Ratio [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 653.8 Shorthand
• Thông tin xuất bản: Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2021
• Mô tả vật lý: Size: Article No. 6400605 : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 257852
• Chủ đề: 1. 17 wind energy; 2. 36 materials science; 3. 43 particle accelerators; 4. 70 plasma physics and fusion technology; 5. Bi-2212

Tóm tắt

 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.