Chemical Stability of the Bi-2223 Phase

Yoshihiro Kusano; Tokuro Nanba; Jun Takada; Yasunori Ikeda; Mikio Takano; Toshio Egi

doi:10.2497/jjspm.40.1057

Chemical Stability of the Bi-2223 Phase

Yoshihiro Kusano, Tokuro Nanba, Jun Takada, Yasunori Ikeda, Mikio Takano, Toshio Egi

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

Abstract

Chemical stability of the Bi-2223 phase has been studied for the samples Bi_0.9Pb_0.2SrCaCu_1.6O₂ Annealing of the bulk samples below 800°C leads to precipitation of the 3321 phase identified as Sr_2.5Bi_0.5Pb₃Ca₂CuO_z. The precipitation of the 3321 phase from the 2223 phase decreases the volume fraction of the 2223 phase but Tc (χ) remains unchanged. It was found by XRD and SQUID measurements and SEM observation that, through reheating at 850°C after heating at 750°C, the 3321 phase disappeares and the volume fraction of the 2223 phase perfectly recovers.

Original language	English
Pages (from-to)	1057-1060
Number of pages	4
Journal	Journal of the Japan Society of Powder and Powder Metallurgy
Volume	40
Issue number	11
DOIs	https://doi.org/10.2497/jjspm.40.1057
Publication status	Published - 1993

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

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title = "Chemical Stability of the Bi-2223 Phase",

abstract = "Chemical stability of the Bi-2223 phase has been studied for the samples Bi0.9Pb0.2SrCaCu1.6O2 Annealing of the bulk samples below 800°C leads to precipitation of the 3321 phase identified as Sr2.5Bi0.5Pb3Ca2CuOz. The precipitation of the 3321 phase from the 2223 phase decreases the volume fraction of the 2223 phase but Tc (χ) remains unchanged. It was found by XRD and SQUID measurements and SEM observation that, through reheating at 850°C after heating at 750°C, the 3321 phase disappeares and the volume fraction of the 2223 phase perfectly recovers.",

author = "Yoshihiro Kusano and Tokuro Nanba and Jun Takada and Yasunori Ikeda and Mikio Takano and Toshio Egi",

year = "1993",

doi = "10.2497/jjspm.40.1057",

language = "English",

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journal = "Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy",

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publisher = "Funtai Funamtsu Yakin Kyokai/Japan Soc. of Powder Metallurgy",

number = "11",

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TY - JOUR

T1 - Chemical Stability of the Bi-2223 Phase

AU - Kusano, Yoshihiro

AU - Nanba, Tokuro

AU - Takada, Jun

AU - Ikeda, Yasunori

AU - Takano, Mikio

AU - Egi, Toshio

PY - 1993

Y1 - 1993

N2 - Chemical stability of the Bi-2223 phase has been studied for the samples Bi0.9Pb0.2SrCaCu1.6O2 Annealing of the bulk samples below 800°C leads to precipitation of the 3321 phase identified as Sr2.5Bi0.5Pb3Ca2CuOz. The precipitation of the 3321 phase from the 2223 phase decreases the volume fraction of the 2223 phase but Tc (χ) remains unchanged. It was found by XRD and SQUID measurements and SEM observation that, through reheating at 850°C after heating at 750°C, the 3321 phase disappeares and the volume fraction of the 2223 phase perfectly recovers.

AB - Chemical stability of the Bi-2223 phase has been studied for the samples Bi0.9Pb0.2SrCaCu1.6O2 Annealing of the bulk samples below 800°C leads to precipitation of the 3321 phase identified as Sr2.5Bi0.5Pb3Ca2CuOz. The precipitation of the 3321 phase from the 2223 phase decreases the volume fraction of the 2223 phase but Tc (χ) remains unchanged. It was found by XRD and SQUID measurements and SEM observation that, through reheating at 850°C after heating at 750°C, the 3321 phase disappeares and the volume fraction of the 2223 phase perfectly recovers.

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Chemical Stability of the Bi-2223 Phase

Abstract

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