Microstructure and flux pinning of OCMG processed (Sm0.33Eu 0.33Gd0.33)Ba2Cu3Oy with sub-micron Gd2BaCuO5 second phase particles

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We present study of microstructure and magnetic properties of bulk melt-textured (Sm0.33Eu0.33Gd0.33)Ba 2Cu3Oy "SEG-123" superconductors with 30 mol% of fine Gd-211 particles. To improve flux pinning performance at 77 K, Gd-211 particles of various sizes were added to the SEG-123 matrix before melt-texture growth. Scanning electron microscopy showed that the homogeneity of 211 particle dispersion improved with increasing sub-micron size of initially added 211 powder. At the same time, the self-field critical current density, Jc improved and reached 107 kA/cm2 at 77 K (Ha∥c-axis). The size of Gd-211 particles did not affect pinning force density in high fields.

Original languageEnglish
Pages (from-to)619-622
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume392-396
Issue numberPART 1
DOIs
Publication statusPublished - 2003 Oct
Externally publishedYes

Fingerprint

Flux pinning
flux pinning
Powders
Superconducting materials
Magnetic properties
Textures
microstructure
Microstructure
Scanning electron microscopy
homogeneity
critical current
textures
current density
magnetic properties
scanning electron microscopy
matrices

Keywords

  • Flux-pinning for material index
  • LRE-BaCuO
  • Melt-textured
  • SEG-123
  • Ultra-fine Gd-211

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

@article{ac29ed39e07c4e7cadd0c14bca0f36a4,
title = "Microstructure and flux pinning of OCMG processed (Sm0.33Eu 0.33Gd0.33)Ba2Cu3Oy with sub-micron Gd2BaCuO5 second phase particles",
abstract = "We present study of microstructure and magnetic properties of bulk melt-textured (Sm0.33Eu0.33Gd0.33)Ba 2Cu3Oy {"}SEG-123{"} superconductors with 30 mol{\%} of fine Gd-211 particles. To improve flux pinning performance at 77 K, Gd-211 particles of various sizes were added to the SEG-123 matrix before melt-texture growth. Scanning electron microscopy showed that the homogeneity of 211 particle dispersion improved with increasing sub-micron size of initially added 211 powder. At the same time, the self-field critical current density, Jc improved and reached 107 kA/cm2 at 77 K (Ha∥c-axis). The size of Gd-211 particles did not affect pinning force density in high fields.",
keywords = "Flux-pinning for material index, LRE-BaCuO, Melt-textured, SEG-123, Ultra-fine Gd-211",
author = "Muralidhar Miryala and M. Jirsa and Naomichi Sakai and Masato Murakami",
year = "2003",
month = "10",
doi = "10.1016/S0921-4534(03)00997-3",
language = "English",
volume = "392-396",
pages = "619--622",
journal = "Physica C: Superconductivity and its Applications",
issn = "0921-4534",
publisher = "Elsevier",
number = "PART 1",

}

TY - JOUR

T1 - Microstructure and flux pinning of OCMG processed (Sm0.33Eu 0.33Gd0.33)Ba2Cu3Oy with sub-micron Gd2BaCuO5 second phase particles

AU - Miryala, Muralidhar

AU - Jirsa, M.

AU - Sakai, Naomichi

AU - Murakami, Masato

PY - 2003/10

Y1 - 2003/10

N2 - We present study of microstructure and magnetic properties of bulk melt-textured (Sm0.33Eu0.33Gd0.33)Ba 2Cu3Oy "SEG-123" superconductors with 30 mol% of fine Gd-211 particles. To improve flux pinning performance at 77 K, Gd-211 particles of various sizes were added to the SEG-123 matrix before melt-texture growth. Scanning electron microscopy showed that the homogeneity of 211 particle dispersion improved with increasing sub-micron size of initially added 211 powder. At the same time, the self-field critical current density, Jc improved and reached 107 kA/cm2 at 77 K (Ha∥c-axis). The size of Gd-211 particles did not affect pinning force density in high fields.

AB - We present study of microstructure and magnetic properties of bulk melt-textured (Sm0.33Eu0.33Gd0.33)Ba 2Cu3Oy "SEG-123" superconductors with 30 mol% of fine Gd-211 particles. To improve flux pinning performance at 77 K, Gd-211 particles of various sizes were added to the SEG-123 matrix before melt-texture growth. Scanning electron microscopy showed that the homogeneity of 211 particle dispersion improved with increasing sub-micron size of initially added 211 powder. At the same time, the self-field critical current density, Jc improved and reached 107 kA/cm2 at 77 K (Ha∥c-axis). The size of Gd-211 particles did not affect pinning force density in high fields.

KW - Flux-pinning for material index

KW - LRE-BaCuO

KW - Melt-textured

KW - SEG-123

KW - Ultra-fine Gd-211

UR - http://www.scopus.com/inward/record.url?scp=0042190209&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0042190209&partnerID=8YFLogxK

U2 - 10.1016/S0921-4534(03)00997-3

DO - 10.1016/S0921-4534(03)00997-3

M3 - Article

VL - 392-396

SP - 619

EP - 622

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - PART 1

ER -