Transition of Y2BaCuO5 phase in powder melting processed YBa2Cu3O7−x superconductors

Jianqing Feng; Yafeng Lu; Xiaoyan Xu; Xiaomei Xiong; Guoqing Liu; Cuiping Zhang; Shaokai Chen; Pingxiang Zhang; Lian Zhou

doi:10.1007/s11595-011-0279-0

Journal of Wuhan University of Technology Materials Science Edition ›› 2011, Vol. 26 ›› Issue (4) : 620 -623. DOI: 10.1007/s11595-011-0279-0

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Transition of Y₂BaCuO₅ phase in powder melting processed YBa₂Cu₃O_7−x superconductors

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Abstract

The morphology and the formation of Y₂BaCuO₅ phase in powder melting processed YBa₂Cu₃O_7−x superconductors were investigated. The experimental results show the heat treatment can not change the shape of Y₂BaCuO₅ particles in powder melting processed samples. The formation of round Y₂BaCuO₅ phase is due to relative content of each constitution of precursor powders in powder melting process. For powder melting process, the excessive liquid phase is eliminated, which restrains the preferred growth of Y₂BaCuO₅ particles.

Keywords

morphology / powder melting process / YBa₂Cu₃O_7−x / scanning electron microscopy

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Jianqing Feng, Yafeng Lu, Xiaoyan Xu, Xiaomei Xiong, Guoqing Liu, Cuiping Zhang, Shaokai Chen, Pingxiang Zhang, Lian Zhou. Transition of Y₂BaCuO₅ phase in powder melting processed YBa₂Cu₃O_7−x superconductors. Journal of Wuhan University of Technology Materials Science Edition, 2011, 26(4): 620-623 DOI:10.1007/s11595-011-0279-0

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References

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[1]	Oka T. Processing and Applications of Bulk HTSC[J]. Physica C, 2007, 463–465: 7-13.

[2]	Floegel-Delor U., Rothfeld R., Wippich D., Werfel F. N. Fabrication of HTS Bearings with Ton Load Performance[J]. IEEE Trans. Appl. Supercond., 2007, 17: 2 142-2 145.

[3]	Oka T., Kanayama H., Fukui S., . Application of HTS Bulk Magnet System to the Magnetic Separation Techniques for Water Purification[J]. Physica C, 2008, 468: 2 128-2 132.

[4]	Nagashima K., Seino H., Sakai N., . Superconducting Magnetic Bearing for a Flywheel Energy Storage System Using Superconducting Coils and Bulk Superconductors[J]. Physica C, 2009, 469: 1 244-1 249.

[5]	Jin S., Tiefel T., Sherwood R., . Melt-textured Growth of Polycrystalline YBa₂Cu₃O_7−δ with High Transport Jc at 77 K[J]. Phys. Rev. B, 1988, 37: 7 850-7 853.

[6]	Murakami M., Morita M., Doi K., . A New Process with the Promise of High Jc in Oxide Superconductors[J]. Jpn. J. Appl. Phys., 1989, 28: 1 189-1 194.

[7]	Lian Z., Xiang Z. P., Ping J., . The properties of YBCO Superconductors Prepared by a New Approach: the ‘Powder Melting Process’[J]. Supercond. Sci. Technol., 1990, 3: 490-492.

[8]	Kim C.-J., Kim K.-B., Jee Y. A., . Effects of the Heating Rate on Conversion of the Precursor Powders Used for Melt Processes Into YBa₂Cu₃O_7−y[J]. J. Mater. Res., 1999, 14: 1 212-1 220.

[9]	Mathieu J. P., Cano I. G., Koutzarova T., . The Contribution of 211 Particles to the Mechanical Reinforcement Mechanism of 123 Superconducting Single Domains[J]. Supercond. Sci. Technol., 2004, 17: 169-174.

[10]	Griffith M. L., Huffman R. T., Halloran J. W. 3 Formation and Coarsening Behavior of Y₂BaCuO₅ from Peritectic Decomposition of YBa₂Cu₃O_7−x [J]. J. Mater. Res., 1994, 9: 1 633-1 643.

[11]	Sakai N., Yoo S. I., Murakami M. Control of Y₂BaCuO₅ Size and Morphology in Melt-processed YBa₂Cu₃O_7−d Superconductor[J]. J. Mater. Res., 1995, 10: 1 611-1 621.

[12]	Mele P., Ubaldini A., Carnasciali M. M., . Growth and Structural Characterization of Needlelike Crystals in the Y-Ba-Cu-O System[J]. Crystal Growth & Design, 2006, 6: 1 761-1 765.

[13]	Langhorn J., McGinn P. J. Improved Microstructural Characteristics in YBa₂Cu₃O_7−x Thick Films Prepared by a Modified Powder Melt Process Route[J]. Physica C, 1999, 312: 169-178.