Note: Progress on the use of MgB2 superconducting joint technique for the development of MgB2 magnets for magnetic resonance imaging (MRI)

YG Kim, JB Song, JC Kim, JM Kim, BH Yoo… - Review of Scientific …, 2017 - pubs.aip.org
This note presents a superconducting joint technique for the development of MgB 2
magnetic resonance imaging (MRI) magnets. The MgB 2 superconducting joint was …

Influence of Ni and Cu contamination on the superconducting properties of MgB2 filaments

A Jung, SI Schlachter, B Runtsch… - Superconductor …, 2010 - iopscience.iop.org
Technical MgB 2 wires usually have a sheath composite consisting of different metals. For
the inner sheath with direct contact to the superconducting filament, chemically inert Nb may …

Investigation of multifilament MgB2 superconducting joint technique for development of MRI magnets

BH Yoo, JC Kim, YG Kim, DY Hwang, JH Lee… - Review of Scientific …, 2018 - pubs.aip.org
This study presents the investigation of superconducting joints fabricated using multifilament
magnesium diboride (MgB 2) wires for the development of persistent-current mode magnetic …

Influence of reactivity of sheath materials with Mg/B on superconducting properties of MgB2

N Varghese, K Vinod, RG Abhilash Kumar… - Journal of Applied …, 2007 - pubs.aip.org
We investigated the influence of reactivity of commonly used sheath materials (Fe, SS, Cu,
and Ni) with Mg/B, processed by in situ powder in sealed tube method on superconducting …

Systematic study of the microstructures and electrical and superconducting properties of nanocarbon doped MgB2 tapes

X Zhang, Y Ma, Z Gao, D Wang, Z Yu… - Superconductor …, 2007 - iopscience.iop.org
A series of C doped and undoped MgB 2 tapes sintered at 600–950 C was fabricated. The
relationships between the critical current properties, crystallinity and microstructures were …

Stabilized in situ rectangular MgB2 wires: the effect of B purity and sheath materials

P Kováč, B Birajdar, I Hušek, T Holubek… - Superconductor …, 2008 - iopscience.iop.org
Stabilized four-filament SiC-added in situ MgB 2 wires were prepared by the rectangular
wire-in-tube (RWIT) technique, using boron powders of different purity (90% and 99%), SiC …

Observation of Flux Jump in (MgB2)0.96Ni0.04 Superconductor Doped with Milled Ni powders

Q Cai, Z Ma, Q Zhao, Y Liu - Journal of superconductivity and novel …, 2011 - Springer
Abstract Bulk (MgB 2) 0.96 Ni 0.04 samples doping with premilled Ni powders were sintered
at 750° C for 30 min. During sintering, liquid Mg–Ni phase prompts solid–solid reaction …

Characterization and the mechanism of formation of the ternary compound MgNi2. 5B2 in Ni-doped MgB2 bulk

Q Zhao, Y Liu, S Penner, L Yu, Z Dong… - Superconductor …, 2009 - iopscience.iop.org
Abstract (MgB 2) 1− x Ni x bulk samples (x= 0.0, 0.04 and 0.06) were synthesized using a
differential thermal analysis apparatus at 750 C. By means of scanning electron microscopy …

The effect of sample holder and current ramp rate on a conduction-cooled V–I measurement of MgB2

A Stenvall, I Hiltunen, J Järvelä, A Korpela… - Superconductor …, 2008 - iopscience.iop.org
In a voltage–current measurement of a superconductor the sample must be kept at a
constant temperature. Otherwise, the measured critical currents and n values are distorted …

Ex situ MgB2 barrier behavior of monofilament in situ MgB2 wires with Glidcop® sheath material

A Kario, A Morawski, W Häßler, K Nenkov… - Superconductor …, 2010 - iopscience.iop.org
Cost-effective MgB 2 wires are highly sought after to replace the widely used NbTi
conductors in superconducting magnets, eg for magnetic resonance imaging (MRI). One …