Effect of Annealing on Pinning Force of Bi-2223 Phase

Yoshihiro Kusano; Youichi Ohkami; Tokuro Nanba; Jun Takada

doi:10.2497/jjspm.41.1501

Effect of Annealing on Pinning Force of Bi-2223 Phase

Yoshihiro Kusano, Youichi Ohkami, Tokuro Nanba, Jun Takada

Research output: Contribution to journal › Article › peer-review

Abstract

Pining characteristics due to the precipitates of the “3321”(Sr_2.5Bi_0.5Pb₃Ca₂CuO₂) phase have been studied in the Bi-2223 phase in the Bi-Pb-Sr-Ca-Cu-O system by mainly XRD and magnetic measurements. The precipitation of the “3321”, phase was controlled by changing annealing temperature and annealing time in air. On annealing at 750°C for lOmin and lh, the larger hysteresis loops in M-H curves were observed in comparison with the initial one before annealing. However, the hysteresis loops became smaller with increasing precipitation of the “3321”, phase. Furthermore, the 2223 phase annealed at 400°C and 500°C, in which no precipitation of the “3321” phase was observed, exhibits larger hysteresis loops.

Original language	English
Pages (from-to)	1501-1504
Number of pages	4
Journal	Journal of the Japan Society of Powder and Powder Metallurgy
Volume	41
Issue number	12
DOIs	https://doi.org/10.2497/jjspm.41.1501
Publication status	Published - 1994

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

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abstract = "Pining characteristics due to the precipitates of the “3321”(Sr2.5Bi0.5Pb3Ca2CuO2) phase have been studied in the Bi-2223 phase in the Bi-Pb-Sr-Ca-Cu-O system by mainly XRD and magnetic measurements. The precipitation of the “3321”, phase was controlled by changing annealing temperature and annealing time in air. On annealing at 750°C for lOmin and lh, the larger hysteresis loops in M-H curves were observed in comparison with the initial one before annealing. However, the hysteresis loops became smaller with increasing precipitation of the “3321”, phase. Furthermore, the 2223 phase annealed at 400°C and 500°C, in which no precipitation of the “3321” phase was observed, exhibits larger hysteresis loops.",

author = "Yoshihiro Kusano and Youichi Ohkami and Tokuro Nanba and Jun Takada",

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AU - Kusano, Yoshihiro

AU - Ohkami, Youichi

AU - Nanba, Tokuro

AU - Takada, Jun

PY - 1994

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