Development in processing of MgB 2 cryo-magnet superconductors - Archive ouverte HAL
Journal Articles Journal of Applied Physics Year : 2014

Development in processing of MgB 2 cryo-magnet superconductors

Abstract

Spark Plasma Sintering is a promising rapid consolidation technique that allows a better understanding and manipulating of sintering kinetics and therefore makes it possible to obtain MgB2-based ceramics with tailored microstructures. Commercial MgB2 powders were spark plasma sintered with an applied mechanical pressure, leading to MgB2 pellets with 99% relative density. The obtained samples show a sharp superconducting transition with an onset at 38.5 K. The critical current density was measured equal to 5.6 × 104 A/cm2 at 20 K under 1 T applied field. Otherwise, the trapped field was also investigated. A 5 mm thick pellet with a 20 mm diameter prepared with optimized processing temperature demonstrated a trapped field of 1.2 T at 15 K and up to 2.5 T at 10 K.
No file

Dates and versions

hal-01921416 , version 1 (13-11-2018)

Identifiers

Cite

J. Noudem, M. Aburras, P. Bernstein, Xavier Chaud, M. Muralidhar, et al.. Development in processing of MgB 2 cryo-magnet superconductors. Journal of Applied Physics, 2014, 116 (16), pp.163916. ⟨10.1063/1.4900725⟩. ⟨hal-01921416⟩
39 View
0 Download

Altmetric

Share

More