Jc-B performance of an OCMG processed (Sm0.33Eu0.33Gd0.33)Ba2Cu3 Oy with sub-micron Gd2BaCuO5 second phase

Research output: Contribution to journalArticle

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Abstract

Microstructure and critical current density of the melt-textured (Sm0.33Eu0.33Gd0.33)Ba2Cu3 Oy (SEG-123) superconductors with varying contents of Gd2BaCuO5 (Gd-211) were studied by means of scanning electron microscopy, transmission electron microscopy (TEM), and magnetic measurements with SQUID. The TEM study showed sub-micron secondary phase particles regularly distributed in the SEG-123 matrix. The homogeneous distribution of Gd-211 resulted in a dramatically improved remanent critical current density, even in the samples with only 10 mol% Gd-211. The second peak height did not appreciably change with varying content of Gd-211 up to 30 mol%. Critical current density as high as 83 kA/cm2 was achieved at 77 K and magnetic field of 2.2 T along c-axis.

Original languageEnglish
Pages (from-to)742-745
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume378-381
Issue numberPART 1
DOIs
Publication statusPublished - 2002 Oct 1
Externally publishedYes

Fingerprint

critical current
current density
Transmission electron microscopy
SQUIDs
Magnetic variables measurement
Superconducting materials
transmission electron microscopy
Magnetic fields
Microstructure
Scanning electron microscopy
magnetic measurement
microstructure
scanning electron microscopy
matrices
magnetic fields

Keywords

  • (Sm,Eu,Gd)BaCuO
  • Flux pinning
  • Gd-211
  • Melt-textured
  • TE M

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Jc-B performance of an OCMG processed (Sm0.33Eu0.33Gd0.33)Ba2Cu3 Oy with sub-micron Gd2BaCuO5 second phase. / Miryala, Muralidhar; Jirsa, M.; Wu, Y.; Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 378-381, No. PART 1, 01.10.2002, p. 742-745.

Research output: Contribution to journalArticle

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abstract = "Microstructure and critical current density of the melt-textured (Sm0.33Eu0.33Gd0.33)Ba2Cu3 Oy (SEG-123) superconductors with varying contents of Gd2BaCuO5 (Gd-211) were studied by means of scanning electron microscopy, transmission electron microscopy (TEM), and magnetic measurements with SQUID. The TEM study showed sub-micron secondary phase particles regularly distributed in the SEG-123 matrix. The homogeneous distribution of Gd-211 resulted in a dramatically improved remanent critical current density, even in the samples with only 10 mol{\%} Gd-211. The second peak height did not appreciably change with varying content of Gd-211 up to 30 mol{\%}. Critical current density as high as 83 kA/cm2 was achieved at 77 K and magnetic field of 2.2 T along c-axis.",
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