Novel method of tuning the size of Y2BaCuO5 particles and their influence on the physical properties of bulk YBa2Cu3O7-δ superconductor

Sugali Pavan Kumar Naik; Miryala Muralidhar; Michael R. Koblischka; Anjela Koblischka-Veneva; Tetsuo Oka; Masato Murakami

doi:10.7567/1882-0786/ab1c72

Novel method of tuning the size of Y₂BaCuO₅ particles and their influence on the physical properties of bulk YBa₂Cu₃O_7-δ superconductor

Sugali Pavan Kumar Naik, Miryala Muralidhar, Michael R. Koblischka, Anjela Koblischka-Veneva, Tetsuo Oka, Masato Murakami

研究成果: Article › 査読

16 被引用数 (Scopus)

抄録

A novel technique for modifying RE₂BaCuO₅ (211, RE = rare earth elements such as Nd, Sm, Gd, Y etc) particles and tuning their size, distribution and content in REBa₂Cu₃O_7-δ bulk superconductors was demonstrated. Varied ultrasonic power was employed to produce fine-sized, individual, sharp-edged 211 phase particles along with mechanically damaged surfaces. The size and content of the 211 phase of infiltration growth-processed YBa₂Cu₃O_7-δ bulk samples were gradually decreased. The effective grain refinement enhanced the critical current density by a factor of two. A maximum trapped field of 0.48 T at 77 K was obtained for a sample with 20 mm diameter by treating the 211 phase particles for 60 min with 300 W energy.

本文言語	English
論文番号	063002
ジャーナル	Applied Physics Express
巻	12
号	6
DOI	https://doi.org/10.7567/1882-0786/ab1c72
出版ステータス	Published - 2019 6月 1

ASJC Scopus subject areas

工学（全般）
物理学および天文学（全般）

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10.7567/1882-0786/ab1c72

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引用スタイル

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abstract = "A novel technique for modifying RE2BaCuO5 (211, RE = rare earth elements such as Nd, Sm, Gd, Y etc) particles and tuning their size, distribution and content in REBa2Cu3O7-δ bulk superconductors was demonstrated. Varied ultrasonic power was employed to produce fine-sized, individual, sharp-edged 211 phase particles along with mechanically damaged surfaces. The size and content of the 211 phase of infiltration growth-processed YBa2Cu3O7-δ bulk samples were gradually decreased. The effective grain refinement enhanced the critical current density by a factor of two. A maximum trapped field of 0.48 T at 77 K was obtained for a sample with 20 mm diameter by treating the 211 phase particles for 60 min with 300 W energy.",

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AU - Muralidhar, Miryala

AU - Koblischka, Michael R.

AU - Koblischka-Veneva, Anjela

AU - Oka, Tetsuo

AU - Murakami, Masato

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