Microstructure and superconducting properties of melt-processed bulk Gd123 single domain with Gd2Ba4CuMOx (M=Mo and Zr) additions

Caixuan Xu, Anming Hu, Naomichi Sakai, Mitsuru Izumi, Izumi Hirabayashi

研究成果: Conference contribution

抄録

Inclusion of the finely dispersed RE2BaCuO5 (RE211) enhances flux pinning in bulk REBa2Cu3O 7-δ. Recently, we tested the effect of Gd2Ba 4CuMOx (Gd2411; M= Zr, Mo) addition on the trapped field and critical current density (Jc) in single domain of bulk GdBa 2Cu3O7-δ (Gd123) with the additional amount ranging from 0.2 mol % to 20 mol %, ratio to Gd123. Around the seeding zone a novel band of the second phase distribution was observed for all Gd2411 additional levels. Second phase excess regions were followed by diluted second phase regions, those appeared alternatively, and formed an inhomogeneous band structure, while an uniform distribution of Gd211 appeared from 0.5 cm away from the seed to the edge of domain along 〈100〉/〈010〉 direction. Jc values strongly depend on the positions and the Gd2411 addition was proved to enhance Jc near the seeding site rather than edge-periphery zone of the bulk disk.

本文言語English
ホスト出版物のタイトルADVANCES IN CRYOGENIC ENGINEERING
ホスト出版物のサブタイトルTransactions of the International Cryogenic Materials Conference, ICMC, Volume 52B
ページ779-785
ページ数7
DOI
出版ステータスPublished - 2006 3月 31
外部発表はい
イベントADVANCES IN CRYOGENIC ENGINEERING: Transactions of the International Cryogenic Materials Conference, ICMC - Keystone, CO, United States
継続期間: 2005 8月 292005 9月 2

出版物シリーズ

名前AIP Conference Proceedings
824 II
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Conference

ConferenceADVANCES IN CRYOGENIC ENGINEERING: Transactions of the International Cryogenic Materials Conference, ICMC
国/地域United States
CityKeystone, CO
Period05/8/2905/9/2

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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