Effect of nanoscopic ZrO2 particles on flux pinning in (Nd, Eu, Gd)-123/Gd-211 composites

M. Muralidhar; N. Sakai; M. Jirsa; M. Murakami; N. Koshizuka

doi:10.1088/0953-2048/17/10/007

Effect of nanoscopic ZrO₂ particles on flux pinning in (Nd, Eu, Gd)-123/Gd-211 composites

M. Muralidhar, N. Sakai, M. Jirsa, M. Murakami, N. Koshizuka

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

12 Citations (Scopus)

Abstract

We investigated the effect of ZrO₂ addition on superconducting and magnetic properties of oxygen-controlled-melt-growth- (OCMG-) processed (Nd_0.33Eu_0.33Gd_0.33)Ba₂Cu ₃O), (NEG-123) bulk material. The purpose of this study was to ascertain whether the ZrO₂ particles are able to improve flux pinning even without entering into reaction with NEG-123 and Gd₂BaCuO ₅ (Gd-211) phases. We observed the expected effect but only at a relatively low concentration of ZrO₂. The best flux pinning was observed in the sample with 0.29 wt% ZrO₂. No trace of Zr was found in the NEG-123 matrix. Our study demonstrates the potential of ZrO₂ particles in enhancing flux pinning in melt-processed REBa₂Cu ₃O_y, (RE-123).

Original language	English
Pages (from-to)	1129-1132
Number of pages	4
Journal	Superconductor Science and Technology
Volume	17
Issue number	10
DOIs	https://doi.org/10.1088/0953-2048/17/10/007
Publication status	Published - 2004 Oct 1

ASJC Scopus subject areas

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

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10.1088/0953-2048/17/10/007

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title = "Effect of nanoscopic ZrO2 particles on flux pinning in (Nd, Eu, Gd)-123/Gd-211 composites",

abstract = "We investigated the effect of ZrO2 addition on superconducting and magnetic properties of oxygen-controlled-melt-growth- (OCMG-) processed (Nd0.33Eu0.33Gd0.33)Ba2Cu 3O), (NEG-123) bulk material. The purpose of this study was to ascertain whether the ZrO2 particles are able to improve flux pinning even without entering into reaction with NEG-123 and Gd2BaCuO 5 (Gd-211) phases. We observed the expected effect but only at a relatively low concentration of ZrO2. The best flux pinning was observed in the sample with 0.29 wt% ZrO2. No trace of Zr was found in the NEG-123 matrix. Our study demonstrates the potential of ZrO2 particles in enhancing flux pinning in melt-processed REBa2Cu 3Oy, (RE-123).",

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AU - Muralidhar, M.

AU - Sakai, N.

AU - Jirsa, M.

AU - Murakami, M.

AU - Koshizuka, N.

PY - 2004/10/1

Y1 - 2004/10/1

N2 - We investigated the effect of ZrO2 addition on superconducting and magnetic properties of oxygen-controlled-melt-growth- (OCMG-) processed (Nd0.33Eu0.33Gd0.33)Ba2Cu 3O), (NEG-123) bulk material. The purpose of this study was to ascertain whether the ZrO2 particles are able to improve flux pinning even without entering into reaction with NEG-123 and Gd2BaCuO 5 (Gd-211) phases. We observed the expected effect but only at a relatively low concentration of ZrO2. The best flux pinning was observed in the sample with 0.29 wt% ZrO2. No trace of Zr was found in the NEG-123 matrix. Our study demonstrates the potential of ZrO2 particles in enhancing flux pinning in melt-processed REBa2Cu 3Oy, (RE-123).

AB - We investigated the effect of ZrO2 addition on superconducting and magnetic properties of oxygen-controlled-melt-growth- (OCMG-) processed (Nd0.33Eu0.33Gd0.33)Ba2Cu 3O), (NEG-123) bulk material. The purpose of this study was to ascertain whether the ZrO2 particles are able to improve flux pinning even without entering into reaction with NEG-123 and Gd2BaCuO 5 (Gd-211) phases. We observed the expected effect but only at a relatively low concentration of ZrO2. The best flux pinning was observed in the sample with 0.29 wt% ZrO2. No trace of Zr was found in the NEG-123 matrix. Our study demonstrates the potential of ZrO2 particles in enhancing flux pinning in melt-processed REBa2Cu 3Oy, (RE-123).

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Effect of nanoscopic ZrO₂ particles on flux pinning in (Nd, Eu, Gd)-123/Gd-211 composites

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