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

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

研究成果: Conference article査読

2 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号012052
ジャーナルJournal of Physics: Conference Series
871
1
DOI
出版ステータスPublished - 2017 7 26
イベント29th International Symposium on Superconductivity, ISS 2016 - Tokyo, Japan
継続期間: 2016 12 132016 12 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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