Chemical and Mechanical Stability of the Ba-added High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O System.
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- Takada Jun
- Faculty of Engineering, Okayama University
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- Fujisaka Kosei
- Faculty of Engineering, Okayama University
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- Hosotani Katsunori
- Faculty of Engineering, Okayama University
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- Egi Toshio
- Faculty of Engineering, Okayama University
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- Kusano Yoshihiro
- Faculty of Engineering, Okayama University
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- Nanba Tokuro
- Faculty of Engineering, Okayama University
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- Ikeda Yasunori
- Institute for Chemical Research, Kyoto University
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- Takano Mikio
- Institute for Chemical Research, Kyoto University
Bibliographic Information
- Other Title
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- Ba添加したBi系高温相の安定性
- Ba テンカシタ Biケイ コウオンソウ ノ アンテイセイ
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Abstract
Chemical and mechanical stability of the Ba-added high-Tc phase has been studied using XRD and DTA for samples of Bi0.9Pb0.2Sr1.0BaxCa1.0Cu1.6Oz with x=0 and 0.05. Some impurities were observed in all samples after the heat treatment at 300-820°C. BaPb0.75Bi0.25O3 was also formed in the Ba-added samples heated at 700-800°C. These impurities were thought to be formed from the amorphous phase which was produced by mechanical grinding of the high-Tc phase. The impurities disappeared and an almost monophasic sample of the high-Tc phase was obtained by heating at 850°C. The lattice parameter c of the Ba-added high-Tc phase was longer than that of the Ba-free one above 800°C. The parameter c of the Ba-added sample heated at 850°C increased with an increase of heating time and was saturated over 48h. The increase of c was due to the Ba dissolution in the high-Tc phase.
Journal
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- Journal of the Japan Society of Powder and Powder Metallurgy
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Journal of the Japan Society of Powder and Powder Metallurgy 40 (2), 204-207, 1993
Japan Society of Powder and Powder Metallurgy
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Details 詳細情報について
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- CRID
- 1390282681283383808
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- NII Article ID
- 130000819193
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- NII Book ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL BIB ID
- 3808495
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed