Superconductivity of REBa2Cu3O7-δ (RE= Y, Dy, Er) ceramic synthesized via coprecipitation method

I. Hamadneh, A. M. Rosli, Roslan Abd. Shukor, N. R M Suib, S. Y. Yahya

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The REBa2Cu3O7-δ (RE= Y, Dy, Er) superconducting ceramics have been prepared via coprecipitation(COP) method from nearly saturated solutions of metal acetates and 2-propanol solution of oxalic acid. The metal oxalates powders were subjected to thermal treatment of 12 hours calcination at 900°C. The pelletized powder was sintered for 15 hr at 920°C. All samples showed a single step transition in the R-T curves. The TC(R=0) for samples Dy123, Y123and Er123 and were 93 K, 91 K and 90 K, respectively. XRD data showed single phase of an orthorhombic structure for all samples. SEM micrographs showed large grain sizes that are randomly distributed. These results showed that COP method using metal oxalates starting powders is very effective to synthesize high quality superconductors and shorten the sintering time required due to the formation of sub micron oxalate powders.

Original languageEnglish
Article number012063
JournalJournal of Physics: Conference Series
Volume97
Issue number1
DOIs
Publication statusPublished - 1 Feb 2008

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oxalates
superconductivity
ceramics
metals
oxalic acid
roasting
acetates
sintering
grain size
scanning electron microscopy
curves

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Superconductivity of REBa2Cu3O7-δ (RE= Y, Dy, Er) ceramic synthesized via coprecipitation method. / Hamadneh, I.; Rosli, A. M.; Abd. Shukor, Roslan; Suib, N. R M; Yahya, S. Y.

In: Journal of Physics: Conference Series, Vol. 97, No. 1, 012063, 01.02.2008.

Research output: Contribution to journalArticle

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