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

Mustafa Mousa Dihom, Abdul Halim Shaari, Hussein Baqiah, Naif Mohammed Al-Hada, Chen Soo Kien, Rabaah Syahidah Azis, Mohd Mustafa Awang Kechik, Zainal Abidin Talib, Roslan Abd. Shukor

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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.

Original languageEnglish
Pages (from-to)407-412
Number of pages6
JournalResults in Physics
Volume7
DOIs
Publication statusPublished - 2017

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ceramics
microstructure
field emission
electron microscopes
substitutes
void ratio
diffraction
homogeneity
crystallinity
critical temperature
x rays
grain size
crystal structure

Keywords

  • Ca substitution
  • Critical temperature
  • Orthorhombic
  • Thermal treatment
  • X-ray Diffraction
  • YBaCuO

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Microstructure and superconducting properties of Ca substituted Y(Ba1− xCax)2Cu3O7−δ ceramics prepared by thermal treatment method. / Dihom, Mustafa Mousa; Shaari, Abdul Halim; Baqiah, Hussein; Al-Hada, Naif Mohammed; Kien, Chen Soo; Azis, Rabaah Syahidah; Kechik, Mohd Mustafa Awang; Talib, Zainal Abidin; Abd. Shukor, Roslan.

In: Results in Physics, Vol. 7, 2017, p. 407-412.

Research output: Contribution to journalArticle

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

AU - Kien, Chen Soo

AU - Azis, Rabaah Syahidah

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