Composition changes in thin-filament MgB2/Ti/GlidCop® wires heat treated at variable periods

Rosová, A.; Kòváč, Pavol; Hušek, I; Kopera, Ľ

doi:10.1016/j.jallcom.2013.03.236

Cited by 2 publications

(1 citation statement)

References 13 publications

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“…The small difference between wires 2 and 3 (with Nb and Ti barriers) can possibly be attributed to the already mentioned more uniformly deformed Ti barriers leading to more uniform MgB 2 filaments affecting the stress tolerance positively. Another reason can be in interface reactions, which were shown at the GlidCop ® /Ti interface leading to the creation of a layered zone containing phases such as TiCu, TiCu 4 and Ti 2 Cu [33,34]. Similarly, irreversible values ε irr =0.45% for wire 4 and 0.55% for wire 5 can be influenced by the Al 3 Ti phase, which was observed at the Ti/HITEMAL ® interface [35].…”

Section: Properties Of Metallic Components and Composite Wiresmentioning

confidence: 99%

Current densities and strain tolerances of filamentary MgB₂ wires made by an internal Mg diffusion process

Kòváč¹,

Kopera²,

Kováč³

et al. 2019

Supercond. Sci. Technol.

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Engineering current densities and tensile strain effects in filamentary MgB2 wires manufactured by the diffusion of magnesium into boron (IMD) process have been examined at a 4.2 K and with an external field of 6–7.5 T. MgB2 wires with 6 or 7 filaments, Nb or Ti barriers and Monel®, GlidCop® and HITEMAL® outer sheaths were examined and compared with commercially produced MgB2 conductors. IMD wires allow for higher engineering current densities in comparison to commercial wires produced by the powder-in-tube (PIT) process, but a uniform Mg/B ratio in the as-formed IMD wires is extremely important for long-length homogeneity. IMD and PIT wire samples were loaded progressively to determine the irreversible strain limit (εirr) and stress limit (σirr) defined as the maximum loaded strain or stress where the critical current (Ic) is still reversible. It was found that the strain tolerances of the tested MgB2 wires are affected by the metallic components used. The wire with the lowest content of metallic elements (Nb/Monel®) led to the lowest strain tolerance (εirr = 0.30%). Alternately, the wire with stronger GlidCop®/Monel® sheath resulted in the best strain tolerance (εirr > 0.50%).

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Section: Properties Of Metallic Components and Composite Wiresmentioning

confidence: 99%

Current densities and strain tolerances of filamentary MgB₂ wires made by an internal Mg diffusion process

Kòváč¹,

Kopera²,

Kováč³

et al. 2019

Supercond. Sci. Technol.

View full text Add to dashboard Cite

show abstract

Laser stimulated kinetics effects on the phase transition of the ferromagnetic/superconducting MgB2/(CrO2) bilayer thin films

Alzayed

Kityk

Soltan

et al. 2014

Journal of Alloys and Compounds

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Composition changes in thin-filament MgB2/Ti/GlidCop® wires heat treated at variable periods

Cited by 2 publications

References 13 publications

Current densities and strain tolerances of filamentary MgB₂ wires made by an internal Mg diffusion process

Current densities and strain tolerances of filamentary MgB₂ wires made by an internal Mg diffusion process

Laser stimulated kinetics effects on the phase transition of the ferromagnetic/superconducting MgB2/(CrO2) bilayer thin films

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Composition changes in thin-filament MgB2/Ti/GlidCop® wires heat treated at variable periods

Cited by 2 publications

References 13 publications

Current densities and strain tolerances of filamentary MgB2 wires made by an internal Mg diffusion process

Current densities and strain tolerances of filamentary MgB2 wires made by an internal Mg diffusion process

Laser stimulated kinetics effects on the phase transition of the ferromagnetic/superconducting MgB2/(CrO2) bilayer thin films

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Product

Resources

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Current densities and strain tolerances of filamentary MgB₂ wires made by an internal Mg diffusion process

Current densities and strain tolerances of filamentary MgB₂ wires made by an internal Mg diffusion process