Bi-2212/Ag tapes and laminates : effects of bending

Ilyushechkin, A.Y., Yamashita, T., Williams, B., & Mackinnon, I.D.R. (1999) Bi-2212/Ag tapes and laminates : effects of bending. Superconductor Science and Technology, 12(3), pp. 142-146.

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Superconducting Bi-2212 tapes and laminates are fabricated by a combination of dip-coating and partial melt processing. The heat treated tapes have critical current densities (Jc) up to 11 kAcm -2. We investigate the degradation of critical current (Ic) during bending experiments for both single tapes and tapes with laminate structure. Although degradation of Ic is observed in both forms, the characteristics of the degradation differ. It is determined that laminated tapes perform better than single tapes when critical current is measured against bending radius, and laminated tapes tolerate a higher strain for a given reduction in critical current. It is found that increasing the number of Bi-2212 layers increases the total Ic of the laminated tape, but degradation of critical current is more pronounced during bending because of the increased total thickness of the laminate structure. It is also found that addition of silver to the Bi-2212 layers reduces critical current degradation during bending for both tapes and laminates.

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ID Code: 57456
Item Type: Journal Article
Refereed: Yes
Additional Information: Cited By (since 1996): 2 Export Date: 19 February 2013 Source: Scopus CODEN: SUSTE Language of Original Document: English Correspondence Address: Ilyushechkin, A.Y.; Univ of Queensland References: Walker, M.S., Hazelton, D.W., Gardner, M.T., Rice, J.A., Walker, D.G., Trautwein, C.M., Ternullo, N.J., Sokolowski, R.S., (1997) IEEE Trans. Appl. Supercond., 7, p. 889; Kase, J., Togano, K., Kumakura, H., Dietderich, D.R., Irisawa, N., Morimoto, T., Maeda, H., (1990) Japan. J. Appl. Phys., 29, pp. L1096; Kumakura, H., Kadowaki, K., Togano, K., Maeda, H., Shimoyama, J., Morimoto, T., Nomura, K., Seido, M., (1991) Adv. Supercond., IY, p. 547; Helstrom, E.E., (1993) Physica C, 218, p. 141; Ilyshechkin, A.Y., Yamashita, T., Alarco, J.A., Mackinnon, I.D.R., (1997) Supercond. Sci. Technol., 10, p. 330; Ekin, J.W., Finnemore, D.K., Li, Q., Tenbrink, J., Carter, W., (1992) Appl. Phys. Lett., 61, p. 858; Yau, J., Savvides, N., (1994) Appl. Phys. Lett., 65, p. 1454
Keywords: Coating techniques, Critical current density, Heat treatment, High temperature superconductors, Laminates, Magnetic tape, Mechanical properties, Melting, Strain, Bending effect, Laminated tape, Copper Oxide superconductors
DOI: 10.1088/0953-2048/12/3/006
ISSN: 0953-2048
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200) > Ceramics (091201)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200) > Functional Materials (091205)
Divisions: Current > Institutes > Institute for Future Environments
Deposited On: 25 Feb 2013 23:33
Last Modified: 25 Feb 2013 23:33

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