The flux pinning properties of yttrium substitution in Bi-2223 superconductor / Siti Sarah Nordin

Nordin, Siti Sarah (2017) The flux pinning properties of yttrium substitution in Bi-2223 superconductor / Siti Sarah Nordin. [Student Project] (Unpublished)

Abstract

This report present the study of flux pinning properties as well as the superconducting properties of Bi1.6-xYxPb0.4Sr2Ca2Cu3O superconductor. The samples with varying value of Y (x =0.00, 0.02, 0.05, 0.10 and 0.20) were prepared by using solid state method. The samples were characterized by using four point probe and X-ray diffraction (XRD). The critical temperature, Tc and critical current density, Je measurement were done using four point probe method without applied magnetic field. Pure sample (x = 0.00) was observed to have the highest value of Tc and Jc. The Tc (onset) and Tc (zero) for pure sample are 111 K and 97 K respectively. The Jc value for pure sample is 1.590 A/cm2 at temperature 40 K. The flux pinning properties were observed using four point probe method with applied magnetic field varying from O.OOT to 0.33T. The Jc-B characteristic show that pure sample has better flux pinning properties compared to other samples and has the better peak position of Fp/Fpmax in the magnetic field. The XRD pattern shows that all samples exhibit orthorhombic structure and peak at 20 = 26° is being diminished at x = 0.10 and 0.20. From the results, it is show that yttrium substituted samples reduced the superconducting properties and as well as the flux pinning properties of the Bi2223 superconductor.

Metadata

Item Type: Student Project
Creators:
CreatorsID Num. / Email
Nordin, Siti SarahUNSPECIFIED
Subjects: Q Science > QD Chemistry
Q Science > QD Chemistry > Physical and theoretical chemistry
Divisions: Universiti Teknologi MARA, Pahang > Jengka Campus > Faculty of Applied Sciences
Item ID: 23900
Uncontrolled Keywords: Flux pinning properties, Superconducting properties, solid state method, X-ray diffraction, Four point probe method, Magnetic field
URI: http://ir.uitm.edu.my/id/eprint/23900

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