Effects of Ag addition on superconductivity and microstructure of DyBa 2Cu3O7-δ-Ag composite

B. Musa, A. K. Yahya, F. Md. Salleh, Roslan Abd. Shukor

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

Abstract

This paper reports on the effects of Ag addition on physical properties of high temperature superconductors DyBa2Cu3O 7-δ (Dy123). A series of the Dy123 - Agx composite was prepared by solid state reaction method with varying amount of metallic silver (x = 0 - 0.3). Resistance versus temperature measurement was done using the four-point-probe method in the temperature range of 79 K to 300 K. Pure DyBa2Cu3O7-δ was found to superconduct with Tc onset of 91 K and Tc zero of 78 K. Addition of Ag at x = 0.05 caused both Tc onset and Tc zero to increase to 93 K and 84 K, respectively. However, Tc onset and T c zero dropped for higher silver contents. We found that the optimum silver content in DyBa2Cu3O7-δ for best superconducting behavior and hardness is between x = 0.05 and 0.10. Microstructure analysis using SEM and EDAX showed that most of the silver is uniformly distributed along the grain boundaries filling the pores and hence increasing the hardness of the samples.

Original languageEnglish
Title of host publicationMaterials Science Forum
Pages41-44
Number of pages4
Volume517
DOIs
Publication statusPublished - 2006
EventInternational Conference on Functional Materials and Devices, ICFMD-2005 - Kuala Lumpur
Duration: 6 Jun 20058 Jun 2005

Publication series

NameMaterials Science Forum
Volume517
ISSN (Print)02555476

Other

OtherInternational Conference on Functional Materials and Devices, ICFMD-2005
CityKuala Lumpur
Period6/6/058/6/05

Fingerprint

Superconductivity
Silver
Microstructure
Composite materials
Hardness
High temperature superconductors
Solid state reactions
Temperature measurement
Energy dispersive spectroscopy
Grain boundaries
Physical properties
Scanning electron microscopy
Temperature

Keywords

  • DyBaCuO-Ag
  • Hardness
  • Superconductor

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Musa, B., Yahya, A. K., Md. Salleh, F., & Abd. Shukor, R. (2006). Effects of Ag addition on superconductivity and microstructure of DyBa 2Cu3O7-δ-Ag composite. In Materials Science Forum (Vol. 517, pp. 41-44). (Materials Science Forum; Vol. 517). https://doi.org/10.4028/0-87849-404-9.41

Effects of Ag addition on superconductivity and microstructure of DyBa 2Cu3O7-δ-Ag composite. / Musa, B.; Yahya, A. K.; Md. Salleh, F.; Abd. Shukor, Roslan.

Materials Science Forum. Vol. 517 2006. p. 41-44 (Materials Science Forum; Vol. 517).

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

Musa, B, Yahya, AK, Md. Salleh, F & Abd. Shukor, R 2006, Effects of Ag addition on superconductivity and microstructure of DyBa 2Cu3O7-δ-Ag composite. in Materials Science Forum. vol. 517, Materials Science Forum, vol. 517, pp. 41-44, International Conference on Functional Materials and Devices, ICFMD-2005, Kuala Lumpur, 6/6/05. https://doi.org/10.4028/0-87849-404-9.41
Musa B, Yahya AK, Md. Salleh F, Abd. Shukor R. Effects of Ag addition on superconductivity and microstructure of DyBa 2Cu3O7-δ-Ag composite. In Materials Science Forum. Vol. 517. 2006. p. 41-44. (Materials Science Forum). https://doi.org/10.4028/0-87849-404-9.41
Musa, B. ; Yahya, A. K. ; Md. Salleh, F. ; Abd. Shukor, Roslan. / Effects of Ag addition on superconductivity and microstructure of DyBa 2Cu3O7-δ-Ag composite. Materials Science Forum. Vol. 517 2006. pp. 41-44 (Materials Science Forum).
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