2001/09/05 by B. A. Glowacki, B.A Glowacki, M Majoros +5 · 21 citations
Materials Science · Physics and Astronomy · #Copper #Electrical conductor #Electrical resistivity and conductivity #Intergranular corrosion #Magnetic field #Magnetization #Magnetometer #Metallurgical and Alloy Processes #Physics of Superconductivity and Magnetism #Scanning SQUID microscopy #Squid #Superconductivity #Superconductivity in MgB2 and Alloys #cond-mat.mtrl-sci #cond-mat.supr-con
paper · pdf · doi:10.1016/s0921-4534(02)00986-3
published in Physica C Superconductivity 372-376, 1254-1257 (Elsevier BV) · Paper presented at EUCAS'01 conference, Copenhagen, 26 - 30 August 2001
arxiv created 2001/09/05 · openalex publication_date 2002/08/01 · arxiv updated 2015/06/24 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The new class of Mg-B superconducting conductors was prepared using the standard in-situ powder-in-tube, PIT, method where Mg+2B mixture was used to fill the copper and silver tubes. Study of the intergranular current, grain connectivity and superconducting phases in wires were conducted by AC susceptibility measurements and direct four point transport measurements. Using SQUID magnetometer, magnetisation versus magnetic field (M-H) curves of the round wires after reactive diffusion were measured at temperatures 5K and magnetic field up to 5T to define the Jcmag . The direct current density measurements of the in-situ Cu-MgB2 performed at 4.2K gave the value of 109 Am-2 .