| Title | Bi(Pb)-Sr-Ca-Cu-O (2223) superconductor prepared by improved sol-gel technique |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 2000 |
| Authors | Tampieri, A., Celotti G., Lesca S., Bezzi G., La Torretta Teresa M. G., and Magnani G. |
| Journal | Journal of the European Ceramic Society |
| Volume | 20 |
| Pagination | 119-126 |
| ISSN | 09552219 |
| Keywords | Calcination, Ceramic materials, Gelation, Globular grains, Granular materials, Morphology, Oxide superconductors, Particle size analysis, Powders, Pressure sintering method, Sintering, Sol-gels |
| Abstract | A particular sol-gel process for preparation of BSCCO (2223) powder was devised, settled and tested. Water-in-oil type emulsion technique associated to internal gelation process was chosen, starting from cations' nitrates. Dried powders were calcined for a few minutes at 400°C and then fired at 850°C in steps of 5 h with intermediate grindings: in only 14 h 92% pure (2223) phase was obtained. Powder mean particle size resulted very low (<1 μm) and morphology is characterized by globular grains which are both promising features for subsequent pressure sintering technique. Moreover, the method appears well adaptable to large scale production. © 2000 Elsevier Science Ltd. |
| Notes | cited By 23 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0034135503&partnerID=40&md5=e4cac29588e816f7d5e781de812ef070 |
| Citation Key | Tampieri2000119 |
