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Effect of ni0.5zn0.5fe2o4 nanoparticles addition on tl-1212 high temperature superconductor

conference contribution
posted on 31.03.2021, 05:45 by W Kong, CM Jacob, Ing KongIng Kong, C Kong, EH Yap, R Abd-Shukor
© 2020 Trans Tech Publications Ltd, Switzerland. The effects of Ni0.5Zn0.5Fe2O4 nanoparticle addition on the superconducting and transport properties of (Tl0.85Cr0.15)Sr2CaCu2O7 (Tl-1212) superconductor were investigated in this paper. The Tl-1212 samples were produced by mixing high purity oxide powders through a solid-state reaction method. Nano Ni0.5Zn0.5Fe2O4 particles with compositions of 0.001 wt.%, 0.003 wt.%, 0.005 wt.%, 0.01 wt.% and 0.02wt.% with average size of 60 nm were added into the Tl-1212 powders. The transition temperatures (Tc-zero and Tc-onset) were measured using a four-point probe method. The highest Tc-zero recorded was 97 K which was exhibited by the pure Tl-1212 sample. The transport critical current, Ic, of the Tl-1212 samples were found through the 1 µV/cm criterion with temperature ranging from 30 K to 77 K. The sample with a composition of 0.003 wt.% displayed the highest value of Jc at 77 K with a value ranging up to 1780 mA/cm2. The Tl-1212 samples were characterised using scanning electron microscopy (SEM), powder X-ray diffraction method (XRD), energy dispersive X-Ray analysis (EDX), electrical resistance measurements and transport critical current density measurements. The Jc of the Tl-1212 superconductor has been improved through the addition of Ni0.5Zn0.5Fe2O4 nanoparticles but adding an excessive amount has caused its Jc to degrade.

History

Publication Date

01/01/2020

Proceedings

Solid State Phenomena

Editors

Suhaimi S Ozair LN Khalil A

Publisher

Trans Tech Publications

Place of publication

Switzerland

Series

Solid State Phenomena

Volume

307

Pagination

6p. (p. 98-103)

ISBN-13

9783035714524

ISSN

1012-0394

Name of conference

Regional Conference of Solid State Science and Technology (RCSSST)

Location

Melaka, Malaysia

Starting Date

06/11/2018

Finshing Date

08/11/2018

Rights Statement

The Author reserves all moral rights over the deposited text and must be credited if any re-use occurs. Documents deposited in OPAL are the Open Access versions of outputs published elsewhere. Changes resulting from the publishing process may therefore not be reflected in this document. The final published version may be obtained via the publisher’s DOI. Please note that additional copyright and access restrictions may apply to the published version.

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