Flux pinning by Gd-211 particles in ternary (Nd0.33Sm0.33Gd0.33)Ba2Cu3 Oy melt-processed superconductors

M. Muralidhar; S. Nariki; M. Jirsa; M. Murakami

doi:10.1016/S0921-4534(02)01534-4

Flux pinning by Gd-211 particles in ternary (Nd_0.33Sm_0.33Gd_0.33)Ba₂Cu₃O_y melt-processed superconductors

M. Muralidhar, S. Nariki, M. Jirsa, M. Murakami

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Sub-micron Gd₂BaCuO₅ (Gd-211) particles were embedded in the ternary (Nd_0.33Sm_0.33Gd_0.33)Ba₂Cu₃O_y (NSG-123) melt-textured superconductors. To enhance critical current density at low fields, different amounts of the secondary phase were added and refined by addition of 0.5 mol% Pt and 1 mol% CeO₂. Optical and scanning electron microscopy indicated sub-micron, mostly Gd-211, particles in the final product. Critical currents in remanent state increased monotonously with 211 concentration but the secondary peak did not nearly change. Critical current density of 100 kAcm^-2 at 77 K and the applied field of 2 T was achieved in the NSG-123 sample with 10 mol% Gd-211.

Original language	English
Pages (from-to)	746-749
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	378-381
Issue number	PART 1
DOIs	https://doi.org/10.1016/S0921-4534(02)01534-4
Publication status	Published - 2002 Oct 1
Externally published	Yes

Keywords

(NdSmGd)BaCuO
Flux pinning
Melt processing
Microstructure

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/S0921-4534(02)01534-4

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title = "Flux pinning by Gd-211 particles in ternary (Nd0.33Sm0.33Gd0.33)Ba2Cu3 Oy melt-processed superconductors",

abstract = "Sub-micron Gd2BaCuO5 (Gd-211) particles were embedded in the ternary (Nd0.33Sm0.33Gd0.33)Ba2Cu3 Oy (NSG-123) melt-textured superconductors. To enhance critical current density at low fields, different amounts of the secondary phase were added and refined by addition of 0.5 mol% Pt and 1 mol% CeO2. Optical and scanning electron microscopy indicated sub-micron, mostly Gd-211, particles in the final product. Critical currents in remanent state increased monotonously with 211 concentration but the secondary peak did not nearly change. Critical current density of 100 kAcm-2 at 77 K and the applied field of 2 T was achieved in the NSG-123 sample with 10 mol% Gd-211.",

keywords = "(NdSmGd)BaCuO, Flux pinning, Melt processing, Microstructure",

author = "M. Muralidhar and S. Nariki and M. Jirsa and M. Murakami",

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T1 - Flux pinning by Gd-211 particles in ternary (Nd0.33Sm0.33Gd0.33)Ba2Cu3 Oy melt-processed superconductors

AU - Muralidhar, M.

AU - Nariki, S.

AU - Jirsa, M.

AU - Murakami, M.

PY - 2002/10/1

Y1 - 2002/10/1

N2 - Sub-micron Gd2BaCuO5 (Gd-211) particles were embedded in the ternary (Nd0.33Sm0.33Gd0.33)Ba2Cu3 Oy (NSG-123) melt-textured superconductors. To enhance critical current density at low fields, different amounts of the secondary phase were added and refined by addition of 0.5 mol% Pt and 1 mol% CeO2. Optical and scanning electron microscopy indicated sub-micron, mostly Gd-211, particles in the final product. Critical currents in remanent state increased monotonously with 211 concentration but the secondary peak did not nearly change. Critical current density of 100 kAcm-2 at 77 K and the applied field of 2 T was achieved in the NSG-123 sample with 10 mol% Gd-211.

AB - Sub-micron Gd2BaCuO5 (Gd-211) particles were embedded in the ternary (Nd0.33Sm0.33Gd0.33)Ba2Cu3 Oy (NSG-123) melt-textured superconductors. To enhance critical current density at low fields, different amounts of the secondary phase were added and refined by addition of 0.5 mol% Pt and 1 mol% CeO2. Optical and scanning electron microscopy indicated sub-micron, mostly Gd-211, particles in the final product. Critical currents in remanent state increased monotonously with 211 concentration but the secondary peak did not nearly change. Critical current density of 100 kAcm-2 at 77 K and the applied field of 2 T was achieved in the NSG-123 sample with 10 mol% Gd-211.

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