Effect of growth temperature on properties of bulk GdBa2Cu3Oy superconductors grown by IG process

Y. Nakanishi, S. Pavan Kumar Naik, M. Muralidhar, M. Murakami

Research output: Contribution to journalArticle

  • 1 Citations

Abstract

Recently, the flux pinning performance of Y-123 material was dramatically improved by optimizing the processing conditions during the Infiltration-Growth (IG) process. In the present work, we adapted the top- seeded IG technique and produced several 20 wt.% AgO2 doped bulk GdBa2Cu3Oy (GdBCO or Gd-123) samples at different growth temperatures of 983, 985, 986, 987, 989, 990, and 992 °C with the same holding time of 25 h. Our results indicate that the bulk GdBCO samples dwelled at 986 °C is the optimum temperature to produce large Gd-123 growth without spontaneous nucleation. Magnetization measurements on 986 °C dwelled composite showed a sharp superconducting transition with Tc, onset at 93.6 K. The critical current density at 77 K and self-field was 16,500 A/cm2. The critical current density values are correlated with the microstructural changes in the bulk Gd-123 materials.

LanguageEnglish
Article number012052
JournalJournal of Physics: Conference Series
Volume871
Issue number1
DOIs
StatePublished - 2017 Jul 26

Fingerprint

infiltration
critical current
current density
temperature
flux pinning
nucleation
magnetization
composite materials

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Effect of growth temperature on properties of bulk GdBa2Cu3Oy superconductors grown by IG process. / Nakanishi, Y.; Pavan Kumar Naik, S.; Muralidhar, M.; Murakami, M.

In: Journal of Physics: Conference Series, Vol. 871, No. 1, 012052, 26.07.2017.

Research output: Contribution to journalArticle

@article{52d3f81a4bf74eb3912eb3e521a12d41,
title = "Effect of growth temperature on properties of bulk GdBa2Cu3Oy superconductors grown by IG process",
abstract = "Recently, the flux pinning performance of Y-123 material was dramatically improved by optimizing the processing conditions during the Infiltration-Growth (IG) process. In the present work, we adapted the top- seeded IG technique and produced several 20 wt.{\%} AgO2 doped bulk GdBa2Cu3Oy (GdBCO or Gd-123) samples at different growth temperatures of 983, 985, 986, 987, 989, 990, and 992 °C with the same holding time of 25 h. Our results indicate that the bulk GdBCO samples dwelled at 986 °C is the optimum temperature to produce large Gd-123 growth without spontaneous nucleation. Magnetization measurements on 986 °C dwelled composite showed a sharp superconducting transition with Tc, onset at 93.6 K. The critical current density at 77 K and self-field was 16,500 A/cm2. The critical current density values are correlated with the microstructural changes in the bulk Gd-123 materials.",
author = "Y. Nakanishi and {Pavan Kumar Naik}, S. and M. Muralidhar and M. Murakami",
year = "2017",
month = "7",
day = "26",
doi = "10.1088/1742-6596/871/1/012052",
language = "English",
volume = "871",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
publisher = "IOP Publishing Ltd.",
number = "1",

}

TY - JOUR

T1 - Effect of growth temperature on properties of bulk GdBa2Cu3Oy superconductors grown by IG process

AU - Nakanishi,Y.

AU - Pavan Kumar Naik,S.

AU - Muralidhar,M.

AU - Murakami,M.

PY - 2017/7/26

Y1 - 2017/7/26

N2 - Recently, the flux pinning performance of Y-123 material was dramatically improved by optimizing the processing conditions during the Infiltration-Growth (IG) process. In the present work, we adapted the top- seeded IG technique and produced several 20 wt.% AgO2 doped bulk GdBa2Cu3Oy (GdBCO or Gd-123) samples at different growth temperatures of 983, 985, 986, 987, 989, 990, and 992 °C with the same holding time of 25 h. Our results indicate that the bulk GdBCO samples dwelled at 986 °C is the optimum temperature to produce large Gd-123 growth without spontaneous nucleation. Magnetization measurements on 986 °C dwelled composite showed a sharp superconducting transition with Tc, onset at 93.6 K. The critical current density at 77 K and self-field was 16,500 A/cm2. The critical current density values are correlated with the microstructural changes in the bulk Gd-123 materials.

AB - Recently, the flux pinning performance of Y-123 material was dramatically improved by optimizing the processing conditions during the Infiltration-Growth (IG) process. In the present work, we adapted the top- seeded IG technique and produced several 20 wt.% AgO2 doped bulk GdBa2Cu3Oy (GdBCO or Gd-123) samples at different growth temperatures of 983, 985, 986, 987, 989, 990, and 992 °C with the same holding time of 25 h. Our results indicate that the bulk GdBCO samples dwelled at 986 °C is the optimum temperature to produce large Gd-123 growth without spontaneous nucleation. Magnetization measurements on 986 °C dwelled composite showed a sharp superconducting transition with Tc, onset at 93.6 K. The critical current density at 77 K and self-field was 16,500 A/cm2. The critical current density values are correlated with the microstructural changes in the bulk Gd-123 materials.

UR - http://www.scopus.com/inward/record.url?scp=85028012997&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85028012997&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/871/1/012052

DO - 10.1088/1742-6596/871/1/012052

M3 - Article

VL - 871

JO - Journal of Physics: Conference Series

T2 - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012052

ER -