Microstructures of the melt-powder-melt-growth processed YBaCuO

K. Yamaguchi, Masato Murakami, H. Fujimoto, S. Gotoh, T. Oyama, Y. Shiohara, N. Koshizuka, S. Tanaka

Research output: Contribution to journalArticle

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Abstract

Microstructures of two MPMG processed YBaCuO materials with and without Y2BaCuO5 (211) inclusions were investigated by transmission electron microscopy. Using the MPMG process, it is possible to change the quantity of the 211 inclusions in the YBa2Cu3O7 (123) matrix. We prepared two YBaCuO samples with 0 and 30 vol.% 211 and with respective critical current density values of 2000 and 30000 A/cm2 at 77 K and 1 T (magnetic field parallel to the c-axis). As possible pinning centers, we found stacking faults in the 123 matrix. However, we observed no appreciable change in their number and structure by introducing the 211 inclusions. Therefore, the difference in Jc values can be attributed to the 211 inclusion itself.

Original languageEnglish
Pages (from-to)1404-1407
Number of pages4
JournalJournal of Materials Research
Volume6
Issue number7
Publication statusPublished - 1991 Jul
Externally publishedYes

Fingerprint

Powders
inclusions
microstructure
Microstructure
Stacking faults
matrices
crystal defects
critical current
Magnetic fields
current density
Transmission electron microscopy
transmission electron microscopy
magnetic fields

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Yamaguchi, K., Murakami, M., Fujimoto, H., Gotoh, S., Oyama, T., Shiohara, Y., ... Tanaka, S. (1991). Microstructures of the melt-powder-melt-growth processed YBaCuO. Journal of Materials Research, 6(7), 1404-1407.

Microstructures of the melt-powder-melt-growth processed YBaCuO. / Yamaguchi, K.; Murakami, Masato; Fujimoto, H.; Gotoh, S.; Oyama, T.; Shiohara, Y.; Koshizuka, N.; Tanaka, S.

In: Journal of Materials Research, Vol. 6, No. 7, 07.1991, p. 1404-1407.

Research output: Contribution to journalArticle

Yamaguchi, K, Murakami, M, Fujimoto, H, Gotoh, S, Oyama, T, Shiohara, Y, Koshizuka, N & Tanaka, S 1991, 'Microstructures of the melt-powder-melt-growth processed YBaCuO', Journal of Materials Research, vol. 6, no. 7, pp. 1404-1407.
Yamaguchi K, Murakami M, Fujimoto H, Gotoh S, Oyama T, Shiohara Y et al. Microstructures of the melt-powder-melt-growth processed YBaCuO. Journal of Materials Research. 1991 Jul;6(7):1404-1407.
Yamaguchi, K. ; Murakami, Masato ; Fujimoto, H. ; Gotoh, S. ; Oyama, T. ; Shiohara, Y. ; Koshizuka, N. ; Tanaka, S. / Microstructures of the melt-powder-melt-growth processed YBaCuO. In: Journal of Materials Research. 1991 ; Vol. 6, No. 7. pp. 1404-1407.
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