Abstract
Chemical and mechanical stability of the high-Tc phase has been studied for the samples of Bi0.9Pb0.2Sr1.0Ca1.0Cu1.6Ox. Mechanical grinding converts the high-Tc phase into a nonsuperconducting amorphous phase. The ground high-Tc phase is not stabilized on annealing at lower temperatures below820»C. Annealing at lower temperature leads to precipitation of some impurity phases and the low-Tc phase which depends on annealing temperature and time. The high-Tc phase is recovered by annealing at 850»C. The lattice parameters a and c of the high-Tc phase annealed at 850»C are longer than those below 820»C.
| Original language | English |
|---|---|
| Pages (from-to) | 779-782 |
| Number of pages | 4 |
| Journal | Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy |
| Volume | 39 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 1992 |
ASJC Scopus subject areas
- Mechanical Engineering
- Industrial and Manufacturing Engineering
- Metals and Alloys
- Materials Chemistry
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Takada, J., Hosotani, K., Fujiwara, M., Kusano, Y., Nanba, T., Ikeda, Y., & Takano, M. (1992). Chemical and Mechanical Stability of the High-Tc Phase in the Bi-Pb-Sr-Ca-Cu-O System (I) Effects of Heat Treatment of Crushed Powder of the High-Tc Phase. Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, 39(9), 779-782. https://doi.org/10.2497/jjspm.39.779