Enhancement of flux pinning properties in nanosized MgO added Bi-2212 superconductor through neutron irradiation

Zaahidah Atiqah Mohiju, Nasri A. Hamid, Yusof Abdullah

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

For superconducting material to maintain high critical current density, Jc in any applications, effective flux pinning centers are needed. The addition of small size MgO particles in bulk Bi2Sr2CaCu2O8 (Bi-2212) superconductor has been proven to enhance the effective flux pinning centers in the superconducting material by creating a desired microstructure with appropriate defects. To further enhance the pinning properties, radiation is one of the convenient ways to improve the microstructure of the material that has correlation with basic properties of superconductors. Neutron irradiation is one of the niche techniques that can be used to perform the task. Defects with larger radius have dimension comparable to the coherence length of the material and thus improved its superconducting properties. In this paper, a small amount of nanosized MgO particles was used to create defects in the Bi-2212 superconducting material. The Bi- 2212/MgO compounds were heat treated, followed by partial melting and slow cooling. Part of the samples was subjected to neutron irradiation using the TRIGA-MARK-II research reactor at the Malaysian Nuclear Agency. Characterization of non-irradiated and irradiated samples was performed via the temperature dependence on electrical resistance measurements, X-ray Diffraction Patterns (XRD), and Scanning Electron Microscopy (SEM) with Energy Dispersive X-ray (EDX) analysis. From the analysis, there was changed in the critical current density and transition temperature of samples subjected to neutron irradiation due to formation of point defects in the microstructure. Higher critical current density indicates better flux pinning properties in the Bi-2212/MgO compounds.

Original languageEnglish
Title of host publicationAdvancing Nuclear Science and Engineering for Sustainable Nuclear Energy Knowledge
Subtitle of host publicationProceedings of the International Nuclear Science, Technology and Engineering Conference 2016, NuSTEC 2016
EditorsMohd Nasri A. Hamid, Abdul Aziz Mohamed, Faridah Mohamad Idris, Abu Hassan Husin
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735414679
DOIs
Publication statusPublished - 06 Jan 2017
Event7th International Nuclear Science, Technology and Engineering Conference 2016, NuSTEC 2016 - Shah Alam, Selangor, Malaysia
Duration: 08 Aug 201610 Aug 2016

Publication series

NameAIP Conference Proceedings
Volume1799
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference7th International Nuclear Science, Technology and Engineering Conference 2016, NuSTEC 2016
CountryMalaysia
CityShah Alam, Selangor
Period08/08/1610/08/16

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Mohiju, Z. A., A. Hamid, N., & Abdullah, Y. (2017). Enhancement of flux pinning properties in nanosized MgO added Bi-2212 superconductor through neutron irradiation. In M. N. A. Hamid, A. A. Mohamed, F. M. Idris, & A. H. Husin (Eds.), Advancing Nuclear Science and Engineering for Sustainable Nuclear Energy Knowledge: Proceedings of the International Nuclear Science, Technology and Engineering Conference 2016, NuSTEC 2016 [040004] (AIP Conference Proceedings; Vol. 1799). American Institute of Physics Inc.. https://doi.org/10.1063/1.4972928