Effect of Nano-SiC Doping on the Superconducting Critical Parameters in MgB_2/Fe Wires and Tapes

• Authors: D. Gajda , A. Zaleski , A. Morawski , A. Kario
• Languages of publication: EN

Abstracts

EN

In this paper the results of critical current measurements for MgB_2 wires and tapes in iron sheath with and without nano-SiC doping are presented. We focus on power-in-tube processing technique, using both in situ and ex situ methods. In situ MgB_2 wires and tapes were fabricated from MgH_2 and B or Mg and B powders. The methods such as hydrostatic extrusion and rolling were used. The samples were annealed under high Ar gas pressure (hot isostatic pressing) at 750°C and 1.0 GPa for 40 min. It was found that critical current of MgB_2/Fe superconducting wire or tape with nano-SiC dopant increased in higher magnetic field values in comparison to pure MgB_2. A significant difference of J_c in tapes made by in situ way from MgH_2 and Mg were found.

Keywords

EN

74.70.Ad; 74.25.Sv

Discipline

• 74.25.Sv: Critical currents
• 74.70.Ad: Metals; alloys and binary compounds (including A15, MgB2, etc.)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 1
• Pages: 371-374

Dates

published

2008-01

received

2007-07-09

Contributors

author

D. Gajda

• International Laboratory of High Magnetic Fields and Low Temperatures, Gajowicka 95, 53-421 Wrocław, Poland

author

A. Zaleski

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences , Okólna 2, 50-422 Wrocław, Poland

author

A. Morawski

• Institute of High Pressure Physics, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warszawa, Poland

author

A. Kario

• Institute of High Pressure Physics, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warszawa, Poland

References

• 1. J. Nagamatsu, N. Nakagawa, T. Muranaka, Y. Zenitani, J. Akimitsu, Nature 410, 63 (2001)
• 2. A. Kario, A. Morawski, B.A. Głowacki, T.Łada, M. Smaga, R. Diduszko, D. Kolesnikov, A.J. Zaleski, A. Kondrat, D. Gajda, Acta Phys. Pol. A 111, 693 (2007)
• 3. S.X. Dou, S. Soltanian, J. Horvat, X.L. Wang, S.H. Zhou, M. Inescu, H.K. Liu, P. Munroe, M. Tomsic, Appl. Phys. Lett. 81, 3419 (2002)
• 4. H.L. Xu, Y. Feng, G. Yan, C.S. Li, Z. Xu, Supercond. Sci. Technol. 19, 1169 (2006)

Identifiers

DOI

10.12693/APhysPolA.113.371