Influence of microstructure on the pinning properties of Nd123

N. Chikumoto; J. Yoshioka; M. Otsuka; S. I. Yoo; M. Murakami

doi:10.1016/S0921-4534(97)01243-4

Influence of microstructure on the pinning properties of Nd123

N. Chikumoto, J. Yoshioka, M. Otsuka, S. I. Yoo, M. Murakami

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

1 Citation (Scopus)

Abstract

Melt-textured Nd123 samples are heat-treated at high temperatures in various atmospheres. For the sample prepared in 1% O₂-Ar, the decrease of J_c was observed after the heat-treatment, eventhough there is no change in T_c. This could be explained by the agglomeration of Nd-rich region (pinning center) during the heat treatment. On the other hand, the sample prepared in air showed the increase of T_c and J_c by the heat-treatment at 980 °C in low oxygen partial pressure (0.1% O₂-Ar), which could be understood by the partial melting of the Nd-rich phase.

Original language	English
Pages (from-to)	2295-2296
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	282
Issue number	PART 4
DOIs	https://doi.org/10.1016/S0921-4534(97)01243-4
Publication status	Published - 1997 Aug
Externally published	Yes

ASJC Scopus subject areas

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

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10.1016/S0921-4534(97)01243-4

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title = "Influence of microstructure on the pinning properties of Nd123",

abstract = "Melt-textured Nd123 samples are heat-treated at high temperatures in various atmospheres. For the sample prepared in 1% O2-Ar, the decrease of Jc was observed after the heat-treatment, eventhough there is no change in Tc. This could be explained by the agglomeration of Nd-rich region (pinning center) during the heat treatment. On the other hand, the sample prepared in air showed the increase of Tc and Jc by the heat-treatment at 980 °C in low oxygen partial pressure (0.1% O2-Ar), which could be understood by the partial melting of the Nd-rich phase.",

author = "N. Chikumoto and J. Yoshioka and M. Otsuka and Yoo, {S. I.} and M. Murakami",

note = "Funding Information: This work was partially supported by NED0 for the R & D of Industrial Science and Technology Frontier Program.",

year = "1997",

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TY - JOUR

T1 - Influence of microstructure on the pinning properties of Nd123

AU - Chikumoto, N.

AU - Yoshioka, J.

AU - Otsuka, M.

AU - Yoo, S. I.

AU - Murakami, M.

N1 - Funding Information: This work was partially supported by NED0 for the R & D of Industrial Science and Technology Frontier Program.

PY - 1997/8

Y1 - 1997/8

N2 - Melt-textured Nd123 samples are heat-treated at high temperatures in various atmospheres. For the sample prepared in 1% O2-Ar, the decrease of Jc was observed after the heat-treatment, eventhough there is no change in Tc. This could be explained by the agglomeration of Nd-rich region (pinning center) during the heat treatment. On the other hand, the sample prepared in air showed the increase of Tc and Jc by the heat-treatment at 980 °C in low oxygen partial pressure (0.1% O2-Ar), which could be understood by the partial melting of the Nd-rich phase.

AB - Melt-textured Nd123 samples are heat-treated at high temperatures in various atmospheres. For the sample prepared in 1% O2-Ar, the decrease of Jc was observed after the heat-treatment, eventhough there is no change in Tc. This could be explained by the agglomeration of Nd-rich region (pinning center) during the heat treatment. On the other hand, the sample prepared in air showed the increase of Tc and Jc by the heat-treatment at 980 °C in low oxygen partial pressure (0.1% O2-Ar), which could be understood by the partial melting of the Nd-rich phase.

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JF - Physica C: Superconductivity and its Applications

IS - PART 4

ER -

Influence of microstructure on the pinning properties of Nd123

Abstract

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