UPM Institutional Repository

Microstructure and superconducting properties of Ca substituted Y(Ba1-xCax)2Cu3O7-δ ceramics prepaed by thermal treatment method


Citation

Dihom, Mustafa Mousa and Shaari, Abdul Halim and Baqiah, Hussein and Al-Hada, Naif Mohammed and Chen, Soo Kien and Azis, Rabaah Syahidah and Awang Kechik, Mohd Mustafa and Talib, Zainal Abidin and Abd Shukor, Roslan (2017) Microstructure and superconducting properties of Ca substituted Y(Ba1-xCax)2Cu3O7-δ ceramics prepaed by thermal treatment method. Results in Physics, 7. pp. 407-412. ISSN 2211-3797

Abstract

The effect of Ca substitution in Ba site of Y(Ba1−xCax)2Cu3O7−δ, (x = 0.00, 0.04, 0.08, 0.1 and 0.125), ceramics prepared by thermal treatment method was investigated. Surface morphology, structural and superconducting were studied using field emission electron microscope (FESEM), X-ray Diffraction (XRD) and four-probe method. FESEM analysis showed an increasing of samples’ grain size, homogeneity and compactness with increasing of Ca substitution. From XRD, the samples had orthorhombic crystal structure of space group Pmmm besides small amount of unknown peaks. The critical temperature (Tc R=zero) decreased from 87 K for the pure sample to 80 K for sample with x = 0.08, and it remained the same for samples with x ⩾ 0.08. Sample with x = 0.04 showed the sharpest superconducting transition (ΔTc), which could be due to good microstructure morphology and better crystallinity.


Download File

[img] Text
Microstructure and superconducting properties of Ca.pdf
Restricted to Repository staff only

Download (2MB)

Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: https://doi.org/10.1016/j.rinp.2016.11.067
Publisher: Elsevier
Keywords: YBa2Cu3O7−δ; Ca substitution; Thermal treatment; X-ray Diffraction; Orthorhombic; Critical temperature
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 17 Mar 2020 07:25
Last Modified: 17 Mar 2020 07:25
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.rinp.2016.11.067
URI: http://psasir.upm.edu.my/id/eprint/54609
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item