Possibility of Tc and Jc enhancement in 10% BaSnO3-doped MPMG-processed YBCO

I. Monot; T. Higuchi; N. Sakai; M. Murakami

doi:10.1088/0953-2048/7/10/015

Possibility of T_c and J_c enhancement in 10% BaSnO₃-doped MPMG-processed YBCO

I. Monot, T. Higuchi, N. Sakai, M. Murakami

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

18 Citations (Scopus)

Abstract

The effect of 10% BaSnO₃ addition on the microstructure and the magnetic properties of MPMG-processed samples has been investigated. At high temperature, BaSnO₃ was found to react rapidly with the liquid phases to form inclusions, a few micrometres in size, of a new phase containing Y, Ba, Cu, Sn, Pt, O components. It is difficult to homogeneously distribute these new phase inclusions in the microstructure, but the '123' grain size, the stoichiometry and the distribution of '211' inclusions do not seem to be affected by this doping. Moreover, in spite of these difficulties, we could locally show evidence of '211' refinement and the possibility of T_c enhancement. This results in sensible improvement in J_c(B) properties compared to undoped MPMG samples, up to 1.1*10⁵ A cm ^-2 in zero field, at 77 K and 4*10⁴ A cm ^-2 in 1 T.

Original language	English
Article number	015
Pages (from-to)	783-786
Number of pages	4
Journal	Superconductor Science and Technology
Volume	7
Issue number	10
DOIs	https://doi.org/10.1088/0953-2048/7/10/015
Publication status	Published - 1994
Externally published	Yes

ASJC Scopus subject areas

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

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10.1088/0953-2048/7/10/015

Cite this

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title = "Possibility of Tc and Jc enhancement in 10% BaSnO3-doped MPMG-processed YBCO",

abstract = "The effect of 10% BaSnO3 addition on the microstructure and the magnetic properties of MPMG-processed samples has been investigated. At high temperature, BaSnO3 was found to react rapidly with the liquid phases to form inclusions, a few micrometres in size, of a new phase containing Y, Ba, Cu, Sn, Pt, O components. It is difficult to homogeneously distribute these new phase inclusions in the microstructure, but the '123' grain size, the stoichiometry and the distribution of '211' inclusions do not seem to be affected by this doping. Moreover, in spite of these difficulties, we could locally show evidence of '211' refinement and the possibility of Tc enhancement. This results in sensible improvement in Jc(B) properties compared to undoped MPMG samples, up to 1.1*105 A cm -2 in zero field, at 77 K and 4*104 A cm -2 in 1 T.",

author = "I. Monot and T. Higuchi and N. Sakai and M. Murakami",

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T1 - Possibility of Tc and Jc enhancement in 10% BaSnO3-doped MPMG-processed YBCO

AU - Monot, I.

AU - Higuchi, T.

AU - Sakai, N.

AU - Murakami, M.

PY - 1994

Y1 - 1994

N2 - The effect of 10% BaSnO3 addition on the microstructure and the magnetic properties of MPMG-processed samples has been investigated. At high temperature, BaSnO3 was found to react rapidly with the liquid phases to form inclusions, a few micrometres in size, of a new phase containing Y, Ba, Cu, Sn, Pt, O components. It is difficult to homogeneously distribute these new phase inclusions in the microstructure, but the '123' grain size, the stoichiometry and the distribution of '211' inclusions do not seem to be affected by this doping. Moreover, in spite of these difficulties, we could locally show evidence of '211' refinement and the possibility of Tc enhancement. This results in sensible improvement in Jc(B) properties compared to undoped MPMG samples, up to 1.1*105 A cm -2 in zero field, at 77 K and 4*104 A cm -2 in 1 T.

AB - The effect of 10% BaSnO3 addition on the microstructure and the magnetic properties of MPMG-processed samples has been investigated. At high temperature, BaSnO3 was found to react rapidly with the liquid phases to form inclusions, a few micrometres in size, of a new phase containing Y, Ba, Cu, Sn, Pt, O components. It is difficult to homogeneously distribute these new phase inclusions in the microstructure, but the '123' grain size, the stoichiometry and the distribution of '211' inclusions do not seem to be affected by this doping. Moreover, in spite of these difficulties, we could locally show evidence of '211' refinement and the possibility of Tc enhancement. This results in sensible improvement in Jc(B) properties compared to undoped MPMG samples, up to 1.1*105 A cm -2 in zero field, at 77 K and 4*104 A cm -2 in 1 T.

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Possibility of T_c and J_c enhancement in 10% BaSnO₃-doped MPMG-processed YBCO

Abstract

ASJC Scopus subject areas

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