Special variation of infiltration-growth processed bulk YBCO fabricated using new liquid source: Ba₃Cu₅O₈ (1:1.3) and YbBa₂Cu₃O _y

Abstract

Utilization of novel materials, particularly high-T _c (critical temperature) superconductors, is essential to pursue the United Nations’ Sustainable Goals, as well as to meet the increasing worldwide demand for clean and carbon-free electric power technologies. Superconducting magnets are beneficial in several real-life applications including transportation, energy production, magnetic resonance imaging (MRI), and drug delivery systems. To achieve high performance, one must develop uniform, large-grain, infiltration-growth (IG) processed bulk YBa₂Cu₃O _y (Y-123) super-magnets. In this study, we report the magnetic and microstructural properties of a large-grain, top-seeded, IG-processed Y-123 pellet, which is 20 mm in diameter and 6 mm in height; the pellet is produced utilizing liquid Yb-123+Ba₃Cu₅O₈ as the liquid source. All the samples cut from the top of the bulk exhibit a sharp superconducting transition (approximately 1 K wide) with the onset T _c of approximately 90 K. However, in the samples cut from the bottom surface, the onset T _c values slightly decreased to between 88 and 90 K, although still exhibiting a sharp superconducting transition. The top and bottom samples exhibited the highest remnant value of J _c (critical current density) at 77 K H//c-axis of 50 and 55 kA/cm², respectively. The remnant J _c and irreversibility field values significantly fluctuated, being fairly low in some bottom samples. Scanning electron microscopy identified nanometer size Y-211 (Y₂BaCuO₅) secondary-phase particles dispersed in the Y-123 matrix. Energy-dispersive spectroscopy clarified that the decreased both T _c and J _c for the bottom samples were attributed to liquid phase dispersion within the Y-123 phase.

Keywords

infiltration growth / special variation / critical current density / scanning electron microscopy

References

[1] Vaughan T, DelaBarre L, Snyder C, Tian JF, Akgun C, Shrivastava D, Liu W, Olson C, Adriany G, Strupp J, Andersen P, Gopinath A, van de Moortele PF, Garwood M, Ugurbil K. 9.4T human MRI: Preliminary results. Magn. Reson. Med., 2006, 56(6): 1274.

[2] Bednorz JG, Muller KA. Possible high T _c superconductivity in the Ba-La-Cu-O system. Z. Phys. B: Condens. Matter, 1986, 64(2): 189.

[3] Wu MK, Ashburn JR, Torng CJ, Hor PH, Meng RL, Gao L, Huang ZJ, Wang YQ, Chu CW. Superconductivity at 93 K in a new mixed-phase Y-Ba-Cu-O compound system at ambient pressure. Phys. Rev. Lett., 1987, 58(9): 908.

[4] S. Kamel and S. Venkatakrishnan, Oriented Grained Y-Bb-Cu-O Superconductors Having High Critical Currents and Method for Producing Same, United States Patent, Appl. US4956336, 1990.

[5] Cardwell DA. Processing and properties of large grain (RE)BCO. Mater. Sci. Eng. B, 1998, 53(1–2): 1.

[6] M. Murakami, T. Takata, K. Yamaguchi, A. Kondoh, and N. Koshizuka Oxide Superconductor and Process for Producing the Same, United States, Appl. US5395820, 1995.

[7] Fujimoto H, Gotoh S, Izumi T, Koshizuka N, Miya K, Murakami M, Nakamura N, Nakamura Y, Shiohara Y, Takaichi H, Taguchi T, Uesaka M, Weber HW, Yamaguchi K. Murakami M. Melt Processed High-Temperature Superconductors, 1993, Singapore, World Scientific Publishing Co., Ltd., 21.

[8] Ren HT, Xiao L, Jiao YL, Zheng MH. Processing and characterization of YBCO superconductors by top-seeded melt-growth method in batch process. Physica C, 2004, 412–414, 597.

[9] Tomita M, Murakami M. High-temperature superconductor bulk magnets that can trap magnetic fields of over 17 tesla at 29 K. Nature, 2003, 421(6922): 517.

[10] M. Muralidhar, N. Sakai, N. Chikumoto, M. Jirsa T. Machi, M. Nishiyama, Y. Wu, and M. Murakami, New type of vortex pinning structure effective at very high magnetic fields, Phys. Rev. Lett., 89(2002), No. 23, art. No. 237001.

[11] Nariki S, Sakai N, Murakami M, Hirabayashi I. Fabrication and superconducting properties of Gd-Ba-Cu-O single-grain bulk with Barium cerate addition. Physica C., 2006, 445–448, 291.

[12] Muralidhar M, Sakai N, Jirsa M, Murakami M, Koshizuka N. High-T _c superconducting magnets that function at liquid oxygen temperature. IEEE Trans. Appl. Supercond., 2004, 14(2): 1206.

[13] Sudhakar ER, Rajasekharan T. Fabrication of textured REBa₂Cu₃O₇/RE₂BaCuO₅ (RE=Y, Gd) composites by infiltration and growth of RE₂BaCuO₅ preforms by liquid phases. Supercond. Sci. Technol., 1998, 11(5): 523.

[14] A. Mahmood, B.H. Jun, Y.H. Han, and C.J. Kim, Effective pore control and critical current density in liquid infiltration growth processed Y-123 superconductors with Ag addition, Supercond. Sci. Technol., 23(2010), No. 6, art. No. 065005.

[15] Namburi DK, Shi YH, Palmer KG, Dennis AR, Durrell JH, Cardwell DA. An improved top seeded infiltration growth method for the fabrication of Y-Ba-Cu-O bulk superconductors. J. Eur. Ceram. Soc., 2016, 36(3): 615.

[16] M. Sushma and M. Murakami, IG processed YBa₂Cu₃O_y produced by YbBa₂Cu₃O _y+liquid phase as a liquid source, [in] Applied Superconductivity Conference (ASC2018), Seattle, 2018.

[17] Sushma M, Murakami M. Single grain bulk YBa₂Cu₃O_y superconductors grown by infiltration growth process utilizing the YbBa₂Cu₃O_y+liquid phase as a liquid source. J. Supercond. Novel Magn., 2018, 31(8): 2291.

[18] M. Sushma, Effect of liquid phase mass for the production of single grain infiltration growth processed bulk YBa₂Cu₃O _y by YbBa₂Cu₃O _y+liquid phase as a liquid source, Mater. Chem. Phys., 242(2020), art. No. 122477.

[19] Chen DX, Goldfarb RB. Kim model for magnetization of type-II superconductors. J. Appl. Phys., 1989, 66(6): 2489.

[20] W. Zhai, Y.H. Shi, J.H. Durrell, A.R. Dennis, N.A. Rutter, S.C. Troughton, S.C. Speller, and D.A. Cardwell, The processing and properties of single grain Y-Ba-Cu-O fabricated from graded precursor powders, Supercond. Sci. Technol., 26(2013), No. 12, art. No. 125021.

[21] Eisterer M, Haindl S, Zehetmayer M, Gonzalez-Arrabal R, Weber HW, Litzkendorf D, Zeisberger M, Habisreuther T, Gawalek W, Shlyk L, Krabbes G. Limitations for the trapped field in large grain YBCO superconductors. Supercond. Sci. Technol., 2006, 19(7): S530.

[22] Babu NH, Iida K, Shi Y, Cardwell DA. Processing of high performance (LRE)-Ba-Cu-O large, single-grain bulk superconductors in air. Physica C, 2006, 445–448, 286.

[23] Dhruba D, Muralidhar M, Ramachandra Rao MS, Murakami M. Top seeded infiltration growth of Y,GdBa2Cu3Oy bulk superconductors with high critical current densities. Supercond. Sci. Technol., 2017, 30(10): 105015.

[24] Muralidhar M, Koblischka MR, Diko P, Murakami M. Enhancement of J _c by 211 particles in ternary Nd_0.33Eu_0.33Gd_0.33)Ba₂Cu₃O_y melt-processed superconductors. Appl. Phys. Lett., 2000, 76(1): 91.

[25] D.K. Namburi, Y.H. Shi, K.G. Palmer, A.R. Dennis, J.H. Durrell, and D.A. Cardwell, Control of Y-211 content in bulk YBCO superconductors fabricated by a buffer-aided, top seeded infiltration and growth melt process, Supercond. Sci. Technol., 29(2016), No. 3, art. No. 034007.

[26] J.V.J. Congreve, Y.H. Shi, R.D.Anthony, H.D. John, J.H. Durrell, and D.A Cardwel, Improvements in the processing of large grain, bulk Y-Ba-Cu-O superconductors via the use of additional liquid phase, Supercond. Sci. Technol., 30(2017), No. 1, art. No. 015017.

[27] Sushma M, Murakami M. Single-grain bulk YBa₂Cu₃O_y superconductor grown in shorter duration by IG process. J. Supercond. Novel Magn., 2019, 32(8): 2369.

[28] Rosenstein B, Knigavko A. Anisotropic peak effect due to structural phase transition in the vortex lattice. Phys. Rev. Lett., 1999, 83(4): 844.

[29] Chen SY, Hsiao YS, Chen CL, Yan DC, Chen IG, Wu MK. Remarkable peak effect in J _c(H,T) of Y-Ba-Cu-O bulk by using infiltration growth (IG) method. Mater. Sci. Eng. B, 2008, 151(1): 31.

[30] Gokhfeld DM, Semenov SV, Balaev DA, Yakimov IS, Dubrovskiy AA, Terentyev KY, Freydman AL, Krasikov AA, Petrov MI. Establishing of peak effect in YBCO by Nd substitution. J. Magn. Magn. Mater., 2017, 440, 127.

[31] Daeumling M, Seuntjens JM, Larbalestier DC. Oxygen-defect flux pinning, anomalous magnetization and intra-grain granularity in YBa₂Cu₃O_7−δ. Nature, 1990, 346(6282): 332.

[32] Hussain M, Kuroda S, Takita K. Peak effect observed in Zn doped YBCO single crystals. Physica C, 1998, 297(3–4): 176.

[33] Yoshimi D, Migita M, Otabe ES, Matsushita T. Flux pinning and peak effect in Y-123 superconductor. Physica C, 2001, 357–360, 590.

[34] Osabe G, Yoo SI, Sakai N, Higuchi T, Takizawa T, Yasohama K, Murakami M. Confirmation of Ba-rich Nd_1+xBa_2−xCu₃O_7−δ solid solutions. Supercond. Sci. Technol., 2000, 13(6): 637.

[35] Muralidhar M, Murakami M. Effect of matrix composition on the flux pinning in a (Nd,Eu,Gd)Ba₂Cu₃O_y superconductor. Phys. Rev. B, 2000, 62(21): 13911.

[36] Egi T, Wen JG, Kuroda K, Unoki H, Koshizuka N. High critical-current density of Nd (Ba,Nd)₂Cu₃O_7−δ single crystals. Appl. Phys. Lett., 1995, 67(16): 2406.

[37] S.P.K. Naik, M. Muralidhar, M. Jirsa, and M. Murakami, Growth and physical properties of top-seeded IG processed large grain (Gd,Dy)BCO bulk superconductor, J. Appl. Phys., 122(2017), No. 19, art. No. 193902.

[38] S. Pinmangkorn, M. Miryala, S.S. Arvapalli, and M. Murakami, Enhancing the superconducting performance of melt grown bulk YBa₂Cu₃O _y via ultrasonically refined Y₂BaCuO₅ without PtO₂ and CeO₂, Mater. Chem. Phys., 244(2020), art. No. 122721.