Effect of CeO2 and Pt doping on the microstructure of Nd-Sm123 bulk superconductor fabricated in air

J. Yoshioka; K. Iida; M. Murakami

doi:10.1088/0953-2048/15/5/327

Effect of CeO₂ and Pt doping on the microstructure of Nd-Sm123 bulk superconductor fabricated in air

J. Yoshioka, K. Iida, M. Murakami

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

1 Citation (Scopus)

Abstract

We have succeeded in fabricating a (Nd, Sm)-Ba-Cu-O bulk superconductor with high T_c and sharp superconducting transition using Ba-rich (Nd_0.8, Sm_0.2)_3.6Ba_2.4Cu_1.8O_9.6 (NS422ss) powder in air. The magnetic property of this melt-textured bulk was similar in T_c and superconducting transition to the bulk with the same nominal composition melt-textured under low oxygen partial pressure (pO₂). The samples also showed relatively high J_c values with the secondary peak effect, although J_c values were slightly lower than the samples melt-textured in low pO₂. It was also found that CeO₂ and Pt doping was very effective in improving J_c values even for Nd-Sm123 bulk melt textured in air.

Original language	English
Pages (from-to)	778-780
Number of pages	3
Journal	Superconductor Science and Technology
Volume	15
Issue number	5
DOIs	https://doi.org/10.1088/0953-2048/15/5/327
Publication status	Published - 2002 May 1
Externally published	Yes

ASJC Scopus subject areas

Ceramics and Composites
Condensed Matter Physics
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

Access to Document

10.1088/0953-2048/15/5/327

Cite this

@article{d9362157930e4fa9b3029e6bef87fda1,

title = "Effect of CeO2 and Pt doping on the microstructure of Nd-Sm123 bulk superconductor fabricated in air",

abstract = "We have succeeded in fabricating a (Nd, Sm)-Ba-Cu-O bulk superconductor with high Tc and sharp superconducting transition using Ba-rich (Nd0.8, Sm0.2)3.6Ba2.4Cu1.8O9.6 (NS422ss) powder in air. The magnetic property of this melt-textured bulk was similar in Tc and superconducting transition to the bulk with the same nominal composition melt-textured under low oxygen partial pressure (pO2). The samples also showed relatively high Jc values with the secondary peak effect, although Jc values were slightly lower than the samples melt-textured in low pO2. It was also found that CeO2 and Pt doping was very effective in improving Jc values even for Nd-Sm123 bulk melt textured in air.",

author = "J. Yoshioka and K. Iida and M. Murakami",

year = "2002",

month = may,

day = "1",

doi = "10.1088/0953-2048/15/5/327",

language = "English",

volume = "15",

pages = "778--780",

journal = "Superconductor Science and Technology",

issn = "0953-2048",

publisher = "IOP Publishing Ltd.",

number = "5",

}

TY - JOUR

T1 - Effect of CeO2 and Pt doping on the microstructure of Nd-Sm123 bulk superconductor fabricated in air

AU - Yoshioka, J.

AU - Iida, K.

AU - Murakami, M.

PY - 2002/5/1

Y1 - 2002/5/1

N2 - We have succeeded in fabricating a (Nd, Sm)-Ba-Cu-O bulk superconductor with high Tc and sharp superconducting transition using Ba-rich (Nd0.8, Sm0.2)3.6Ba2.4Cu1.8O9.6 (NS422ss) powder in air. The magnetic property of this melt-textured bulk was similar in Tc and superconducting transition to the bulk with the same nominal composition melt-textured under low oxygen partial pressure (pO2). The samples also showed relatively high Jc values with the secondary peak effect, although Jc values were slightly lower than the samples melt-textured in low pO2. It was also found that CeO2 and Pt doping was very effective in improving Jc values even for Nd-Sm123 bulk melt textured in air.

AB - We have succeeded in fabricating a (Nd, Sm)-Ba-Cu-O bulk superconductor with high Tc and sharp superconducting transition using Ba-rich (Nd0.8, Sm0.2)3.6Ba2.4Cu1.8O9.6 (NS422ss) powder in air. The magnetic property of this melt-textured bulk was similar in Tc and superconducting transition to the bulk with the same nominal composition melt-textured under low oxygen partial pressure (pO2). The samples also showed relatively high Jc values with the secondary peak effect, although Jc values were slightly lower than the samples melt-textured in low pO2. It was also found that CeO2 and Pt doping was very effective in improving Jc values even for Nd-Sm123 bulk melt textured in air.

UR - http://www.scopus.com/inward/record.url?scp=0036571926&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036571926&partnerID=8YFLogxK

U2 - 10.1088/0953-2048/15/5/327

DO - 10.1088/0953-2048/15/5/327

M3 - Article

AN - SCOPUS:0036571926

VL - 15

SP - 778

EP - 780

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

SN - 0953-2048

IS - 5

ER -

Effect of CeO₂ and Pt doping on the microstructure of Nd-Sm123 bulk superconductor fabricated in air

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this