Published January 1, 2015 | Version v1
Journal article Open

Effect of the initial filling density on the critical current of in-situ Fe/MgB2 wires

  • 1. Abant Izzet Baysal Univ, Dept Phys, TR-14280 Bolu, Turkey
  • 2. Int Lab High Magnet Fields & Low Temp, PL-53421 Wroclaw, Poland
  • 3. Abant Izzet Baysal Univ, Dept Chem, TR-14280 Bolu, Turkey

Description

We report a comparative study on the fabrication of in-situ monofilamentary superconducting Fe sheathed MgB2 wires as a function of the initial tube filling density. The wire samples are fabricated by means of a standard Powder-in-Tube (PIT) method with two different initial powder filling densities. Transport measurements are applied under high magnetic fields, of up to 10 T, obtained in a Bitter magnet. We find that increasing the initial filling density improved the critical current of the Fe/MgB2 wires, and a high I-c (4.2 K) = 140 A at B = 5 T is achieved. (C) 2015 Elsevier B.V. All rights reserved.

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