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Synthesis of Y2BaCuO5 nano-whiskers by a solution blow spinning technique and their successful introduction into single-grain, YBCO bulk superconductors
(2019-02-15)
The ability of single grain Y-Ba-Cu-O (YBCO) bulk superconductors to trap large magnetic fields is due generally to the presence of embedded, non-superconducting Y2BaCuO5 (Y-211) phase particles, in optimum amount, in the ...
Strong pinning and slow flux creep relaxation in Co-doped CaFe2As2 single crystals
(Pergamon-Elsevier Science Ltd, 2020-09)
We report on measurements of critical current densities Jc and flux creep rates S of freestanding Ca(Fe1−xCox)2As2 (x ≈ 0.033) single crystals with Tc ≈ 15.7 K by performing magnetization measurements. The magnetic field ...
Does the pelletization pressure modify the effective anisotropy of the grains in (Bi,Pb)2223 bulk system?
(Springer, 2017-09)
In this paper we present a new method to determine separately inter and intragranular magnitudes of polycrystalline superconducting materials, such as: intrinsic effective anisotropy, t= ρc/ ρa b, the slope of the linear ...
One-pot-like facile synthesis of YBa2Cu3O7-δ superconducting ceramic: Using PVP to obtain a precursor solution in two steps
(2020-03-01)
There are a variety of chemical routes used to produce advanced ceramic materials. The sol-gel-like methods are widely applied since the final samples present high stoichiometric and grain size homogeneity. However, with ...
Carbon nanotubes effects on the relaxation properties and critical current densities of MgB2 superconductor
(Amer Inst Physics, 2013-07-12)
Addition of nonsuperconducting phases, such as carbon nanotubes, can modify the superconducting properties of MgB2 samples, improving the critical current density and upper critical field. A full understanding of the flux ...
Superconductivity of nano-TiO2-added MgB2
(Elsevier Science BvAmsterdamHolanda, 2007)
Superconducting Yba2cu3o7-δ Films On Srtio3 By Electrodeposition Process
(Elsevier Science Publishers B.V., Amsterdam, Netherlands, 2000)