Preparation and stability of Ba-Y-Cu oxide superconductors.

幹也, 尾野; 正己, 越村; 政利, 阿部; 秀直, 松島; 耕一, 倉沢; 秀晃, 和田; 実, 高橋

doi:10.3379/jmsjmag.12.431

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2021

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“…1 shows the overview on this experiment until fabricating oxide film. The YBCO calcined powder is synthesized by solid-state chemical reaction (7). The molar ratio of Y, Ba, and Cu was prepared at 1:2:3 using Y2O3, BaCO3 and CuO.…”

Section: Methodsmentioning

confidence: 99%

Research of YBCO Superconductor Coating on Austenitic Stainless Steel by Electrophoretic Deposition

Sato¹,

Koura²

2021

Preprint

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Yttrium-based superconductors (YBCO) haven’t been widely applied. One reason is because of its high cost. In this research, we replaced the substrate and the fabrication method with a lower and found the possibility of fabricating high-performance superconducting wires. Specifically, the YBCO layer was fabricated by electrophoretic deposition (EPD). However, this method requires calcination. It has been known that Fe in the substrate diffuses into the YBCO layer during calcination, and this phenomenon causes deterioration of YBCO performance. Therefore, CeO2 was fabricated as a diffusion prevention layer between the substrate and the YBCO layer. It showed the possibility of preventing the diffusion of Fe. Meanwhile, a textured CeO2 layer was fabricated to enhance the properties of the superconductor. It was also shown that controlling the current may provide preferential orientation.

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Section: Methodsmentioning

confidence: 99%