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http://dx.doi.org/10.9714/psac.2017.19.2.009

Effects of seed orientation on the growth behavior of single grain REBCO bulk superconductors  

Lee, Hee-Gyoun (Korea Polytechnic University)
Publication Information
Progress in Superconductivity and Cryogenics / v.19, no.2, 2017 , pp. 9-13 More about this Journal
Abstract
This study presents a simple method to control the seed orientation which leads to the various growth characteristics of a single grain REBCO (RE: rare-earth elements) bulk superconductors. Seed orientation was varied systematically from c-axis to a-axis with every 30 degree rotation around b-axis. Orientations of a REBCO single grain was successfully controlled by placing the seed with various angles on the prismatic indent prepared on the surface of REBCO powder compacts. Growth pattern was changed from cubic to rectangular when the seed orientation normal to compact surface was varied from c-axis to a-axis. Macroscopic shape change has been explained by the variation of the wetting angle of un-reacted melt depending on the interface energy between $YBa_2Cu_3O_{7-y}$ (Y123) grain and melt. Higher magnetic levitation force was obtained for the specimen prepared using tilted seed with an angle of 30 degree rotation around b-axis.
Keywords
Single grain REBCO; Bulk superconductors; Seed orientation; Facet lines; Shape change;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 M. Morita, S. Takebayashi, M. Tanaka, K. Kimura, K. Miyamoto and K. Sawano, "Quench and melt growth (QMG) process for large bulk superconductor fabrication," Adv. Supercond., vol. 3, pp. 733-736, 1991.
2 S. Meslin and J. G. Noudem, "Infiltration and top seeded grown mono-domain $YBa_2Cu_3O_{7-x}$ bulk superconductor," Supercond. Sci. Technol., vol. 17, pp. 1324-1328, 2004.   DOI
3 C. Varanasi, P. J. McGinn, V. Pavate and E. P. Kvam, "논문제목," J. Mater. Res., vol. 10 , pp. 2251-2256, 1995   DOI
4 C. -J. Kim, S. -D. Park, H . -W. Park and B. -H. Jun, "Interior seeding for the fabrication of single-grain REBCO bulk superconductors," Supercond. Sci. Technol., vol. 29, pp. 034003-034009, 2016.   DOI
5 P. Schaetzle, G. Krabbes, G. Stover, G. Fuchs and D. Schlafer, "Multi-seeded melt crystallization of YBCO bulk material for cryogenic applications," Supercond. Sci. Technol., vol. 12, pp. 69-76, 1999.   DOI
6 Y. A. Jee, C. -J. Kim, T. -H. Sung, G. -W. Hong, "Top-seeded melt growth of Y-Ba-Cu-O superconductor with multiseeding," Supercond. Sci. Technol., vol. 13, pp. 195-201, 2000.   DOI
7 T. D. Withnell, N. H. Babu, K. Iida, Y. Shi, D. A. Cardwell, S. Haindl, F. Hengstberger and H. W. Weber, "The effect of seed orientation and separation on the field trapping properties of multi-seeded, melt processed Y-Ba-Cu-O," Physica C, vol. 445-448, pp. 382-386, 2006   DOI
8 M. Sawamura, M. Morita and H. Hirano, "A new method for multiseeding RE-Ba-Cu-O superconductor," Supercond. Sci. Technol., vol. 17, pp. S418-421, 2004.   DOI
9 L. Cheng, L. S. Guo, Y. S. Wu, X. Yao and D. A. Cardwell, "Multi-seeded growth of melt processed Gd-Ba-Cu-O bulk superconductors using different arrangements of thin film seeds," J. Cryst. Growth, vol. 366, pp. 1-7, 2013.   DOI
10 C. -J. Kim, Y. A. Jee, S. C. Kwon, T. H. Sung and G. W. Hong, "Control of YBCO growth at the compact/substrate interface by bottom seeding and $Yb_2O_3$ coating in seeded melt-growth processed YBCO oxides using a MgO substrate," Physica C, vol. 315, pp. 263-270, 1999.   DOI
11 C. -J Kim, S. -A. Jung, H. -W. Park, B. -H. Jun and S. -D. Park, "Top surface morphologies of melt growth processed bulk superconductors with corner or edge seeding," Physica C, vol. 495, pp. 225-228, 2013.   DOI
12 Y. Jung, S. J. Go, H. T. Joo, Y. J. Lee, S. -D. Park, B. -H. Jun and C. -J. Kim, "Orientation and thickness dependence of the magnetic levitation force and trapped magnetic field of single grain $Y_{1.5}Ba_2Cu_3O_{7-y}$ bulk superconductors," Prog. Supercond. Cryog., vol. 19, pp. 30-34, 2017.   DOI
13 K. Iida, N. H. Babu, Y-H. Shi and D. A. Cardwell, "The effect of the addition of zirconium-containing compounds on the microstructure and superconducting properties of mono-domain Y-Ba-Cu-O bulk superconductors," Supercond. Sci. Technol., vol. 18, pp. 704-709, 2005.   DOI
14 C. -J. Kim, Y. A. Jee, G. -W. Hong, T. -H. Sung, Y. -H. Han, S. -C. Han, S. -J. Kim, W. Bieger and G. Fuchs, "Effects of the seed dimension on the top surface growth mode and the magnetic properties of top-seeded melt growth processed YBCO superconductors," Physica C, vol. 331 , pp. 274-284, 2000.   DOI
15 Y. Nakamura, A. Endo and Y. J. Shiohara, "The relation between the undercooling and the growth rate of $YBa_2Cu_3O_{6+x}$ superconductive oxide," Mater. Res., vol. 11, pp. 1094-1100, 1996.   DOI
16 P. Diko and K. C. Goretta, "Macroscopic shape change of melt-processed $YBa_2Cu_3O_x/Y_2BaCuO_5$ bulk superconductors," Physica C, vol. 297 , pp. 211-215, 1998.   DOI
17 D. K. Namburi, Y. Shi, K. G. Palmer, A. R. Dennis, J. H. Durrell and D. A. Cardwell, "An improved top seeded infiltration growth method for the fabrication of Y-Ba-Cu-O bulk superconductors," J. Europ. Ceram. Soc., vol. 36, pp. 615-624, 2016.   DOI
18 J. H. Lee, S. D. Park, B. H. Jun, J. S. Lee, S. C. Han, Y. H. Han and C. J. Kim, "A buffer bridge process for growing multiple $YBa_2Cu_3O_{7-y}$ grains from one top seed," Supercond. Sci. Technol., vol. 24, pp. 055019-055025, 2011.   DOI