Effect of sintering time and temperature on superconducting properties of Chevrel phase wires made with micron-sized powder

✍ Scribed by A. Gupta; N. Cheggour; M. Decroux; V. Bouquet; P. Langlois; M. Massat; R. Flükiger; Ø. Fischer

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 238 KB
• Volume: 235-240
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(94)92492-9

✦ Synopsis

A systematic study of inductively measured T c, transport critical current density (Jc) and the field (Bmax) at which pinning force density is maximum has been made on newly developed Che-~,rel phase superconducting (CPS) wires. At fixed sintering temperatures, Bmax(4.2 K) increases monotonically to values > 0.16 Bc2 with increasing sintering times (ts). Simultaneously, the deterioration of Jc(4.2 K, 7.5 T) values and the inductive transition show a degradation of the CPS core. The emerging picture lends support to the evolution of well connected paths in a granular CPS core, however, limited by degradation due to Ph/S losses.