Synthesis, characterization and melt processing of Y1-x(Yb0.9Nd0.1)x Ba2Cu3Oz superconductors

M. A.A. Moussa; M. Muralidhar; M. Izumi; M. Murakami

doi:10.1016/j.physc.2009.05.019

Synthesis, characterization and melt processing of Y_1-x(Yb_0.9Nd_0.1)_x Ba₂Cu₃O_z superconductors

M. A.A. Moussa, M. Muralidhar, M. Izumi, M. Murakami

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

1 Citation (Scopus)

Abstract

Effects of a combined substitute of Yb and Nd on Y site on the superconducting properties of YBa₂Cu₃O_y have been studied. We synthesized Y_1-x(Yb_0.9Nd_0.1)_x Ba₂Cu₃O_z compound with x = 0.2, 0.4, 0.6, 0.8 and 1.0. Here, the ratio of Yb-Nd was fixed to be 9:1 for obtaining 123 phase without secondary phases. The melt processing thermal profiles for Y_1-x(Yb_0.9Nd_0.1)_x Ba₂Cu₃O_z with x = 0.2 and 0.4 and the addition of 40 mol% {Y_1-x(Yb_0.9Nd_0.1) _x}₂BaCuO₅ and 0.5 wt% Pt in air were determined onthe basis of the thermal analysis results. All samples showed a low grain growth rate, particularly for high x values, which may be partially ascribed to un-optimized thermal schedules. Although almost all the samples exhibited low J_c values, the sample with x = 0.2 exhibited T_c of 88.8 K and a relatively high J_c value of 16,000 A/cm ² at 77 K for H//c-axis.

Original language	English
Pages (from-to)	1211-1214
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	469
Issue number	15-20
DOIs	https://doi.org/10.1016/j.physc.2009.05.019
Publication status	Published - 2009 Oct 15
Externally published	Yes

Keywords

Bulk superconductor
Characterization
Melt process
Y(YbNd) BaCuO

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/j.physc.2009.05.019

Cite this

@article{0ab3b73edc1a436a80fda86b6d4e74e2,

title = "Synthesis, characterization and melt processing of Y1-x(Yb0.9Nd0.1)x Ba2Cu3Oz superconductors",

abstract = "Effects of a combined substitute of Yb and Nd on Y site on the superconducting properties of YBa2Cu3Oy have been studied. We synthesized Y1-x(Yb0.9Nd0.1)x Ba2Cu3Oz compound with x = 0.2, 0.4, 0.6, 0.8 and 1.0. Here, the ratio of Yb-Nd was fixed to be 9:1 for obtaining 123 phase without secondary phases. The melt processing thermal profiles for Y1-x(Yb0.9Nd0.1)x Ba2Cu3Oz with x = 0.2 and 0.4 and the addition of 40 mol% {Y1-x(Yb0.9Nd0.1) x}2BaCuO5 and 0.5 wt% Pt in air were determined onthe basis of the thermal analysis results. All samples showed a low grain growth rate, particularly for high x values, which may be partially ascribed to un-optimized thermal schedules. Although almost all the samples exhibited low Jc values, the sample with x = 0.2 exhibited Tc of 88.8 K and a relatively high Jc value of 16,000 A/cm 2 at 77 K for H//c-axis.",

keywords = "Bulk superconductor, Characterization, Melt process, Y(YbNd) BaCuO",

author = "Moussa, {M. A.A.} and M. Muralidhar and M. Izumi and M. Murakami",

year = "2009",

month = oct,

day = "15",

doi = "10.1016/j.physc.2009.05.019",

language = "English",

volume = "469",

pages = "1211--1214",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier",

number = "15-20",

}

TY - JOUR

T1 - Synthesis, characterization and melt processing of Y1-x(Yb0.9Nd0.1)x Ba2Cu3Oz superconductors

AU - Moussa, M. A.A.

AU - Muralidhar, M.

AU - Izumi, M.

AU - Murakami, M.

PY - 2009/10/15

Y1 - 2009/10/15

N2 - Effects of a combined substitute of Yb and Nd on Y site on the superconducting properties of YBa2Cu3Oy have been studied. We synthesized Y1-x(Yb0.9Nd0.1)x Ba2Cu3Oz compound with x = 0.2, 0.4, 0.6, 0.8 and 1.0. Here, the ratio of Yb-Nd was fixed to be 9:1 for obtaining 123 phase without secondary phases. The melt processing thermal profiles for Y1-x(Yb0.9Nd0.1)x Ba2Cu3Oz with x = 0.2 and 0.4 and the addition of 40 mol% {Y1-x(Yb0.9Nd0.1) x}2BaCuO5 and 0.5 wt% Pt in air were determined onthe basis of the thermal analysis results. All samples showed a low grain growth rate, particularly for high x values, which may be partially ascribed to un-optimized thermal schedules. Although almost all the samples exhibited low Jc values, the sample with x = 0.2 exhibited Tc of 88.8 K and a relatively high Jc value of 16,000 A/cm 2 at 77 K for H//c-axis.

AB - Effects of a combined substitute of Yb and Nd on Y site on the superconducting properties of YBa2Cu3Oy have been studied. We synthesized Y1-x(Yb0.9Nd0.1)x Ba2Cu3Oz compound with x = 0.2, 0.4, 0.6, 0.8 and 1.0. Here, the ratio of Yb-Nd was fixed to be 9:1 for obtaining 123 phase without secondary phases. The melt processing thermal profiles for Y1-x(Yb0.9Nd0.1)x Ba2Cu3Oz with x = 0.2 and 0.4 and the addition of 40 mol% {Y1-x(Yb0.9Nd0.1) x}2BaCuO5 and 0.5 wt% Pt in air were determined onthe basis of the thermal analysis results. All samples showed a low grain growth rate, particularly for high x values, which may be partially ascribed to un-optimized thermal schedules. Although almost all the samples exhibited low Jc values, the sample with x = 0.2 exhibited Tc of 88.8 K and a relatively high Jc value of 16,000 A/cm 2 at 77 K for H//c-axis.

KW - Bulk superconductor

KW - Characterization

KW - Melt process

KW - Y(YbNd) BaCuO

UR - http://www.scopus.com/inward/record.url?scp=68249156801&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=68249156801&partnerID=8YFLogxK

U2 - 10.1016/j.physc.2009.05.019

DO - 10.1016/j.physc.2009.05.019

M3 - Article

AN - SCOPUS:68249156801

SN - 0921-4534

VL - 469

SP - 1211

EP - 1214

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 15-20

ER -