Effects of Dy2BaCuO5 contents on microstructure and mechanical strength of Ag-added Dy-Ba-Cu-O bulk superconductors

S. Nariki; N. Sakai; M. Murakami; I. Hirabayashi

doi:10.1016/j.physc.2004.01.084

Effects of Dy₂BaCuO₅ contents on microstructure and mechanical strength of Ag-added Dy-Ba-Cu-O bulk superconductors

S. Nariki, N. Sakai, M. Murakami, I. Hirabayashi

Research output: Contribution to journal › Article

26 Citations (Scopus)

Abstract

We investigated the microstructure and mechanical strength of Ag-added DyBa₂Cu₃O_y (Dy123) bulk superconductors with various Dy₂BaCuO₅ (Dy211) contents. Single-grain Dy123 bulk samples 32 mm in diameter with the addition of 5-40 mol% of Dy211 and 10 wt.% of Ag₂O were fabricated in air. The sample with 5 mol% Dy211 contained many macro-cracks in the ab-plane. The amount of cracks decreased with increasing Dy211 content. Three-point bending tests were performed at room temperature to measure the mechanical properties. The average bending strength of the sample with 5 mol% Dy211 was 73 MPa. The strength was improved to 95 MPa with an addition of 40 mol% Dy211.

Original language	English
Pages (from-to)	651-656
Number of pages	6
Journal	Physica C: Superconductivity and its applications
Volume	412-414
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2004.01.084
Publication status	Published - 2004 Oct 1

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Keywords

DyBa CuO
DyBaCuO
Mechanical strength
Melt-textured bulk
Microstructure

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Cite this

Nariki, S., Sakai, N., Murakami, M., & Hirabayashi, I. (2004). Effects of Dy₂BaCuO₅ contents on microstructure and mechanical strength of Ag-added Dy-Ba-Cu-O bulk superconductors. Physica C: Superconductivity and its applications, 412-414(SPEC. ISS.), 651-656. https://doi.org/10.1016/j.physc.2004.01.084

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abstract = "We investigated the microstructure and mechanical strength of Ag-added DyBa2Cu3Oy (Dy123) bulk superconductors with various Dy2BaCuO5 (Dy211) contents. Single-grain Dy123 bulk samples 32 mm in diameter with the addition of 5-40 mol% of Dy211 and 10 wt.% of Ag2O were fabricated in air. The sample with 5 mol% Dy211 contained many macro-cracks in the ab-plane. The amount of cracks decreased with increasing Dy211 content. Three-point bending tests were performed at room temperature to measure the mechanical properties. The average bending strength of the sample with 5 mol% Dy211 was 73 MPa. The strength was improved to 95 MPa with an addition of 40 mol% Dy211.",

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AU - Hirabayashi, I.

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10.1016/j.physc.2004.01.084