CRYSTALLIZATION OF THE VITREOUS BSCCO-221 2 PRECURSOR

Authors
PLEWA J SCHMITZ GJ PREISLER E ALTENBURG H
Citation
J. Plewa et al., CRYSTALLIZATION OF THE VITREOUS BSCCO-221 2 PRECURSOR, Journal of thermal analysis, 39(6), 1993, pp. 669-680
Citations number
12
Categorie Soggetti
Chemistry Analytical
Journal title
Journal of thermal analysis → ACNP
ISSN journal
03684466
Volume
39
Issue
6
Year of publication
1993
Pages
669 - 680
Database
ISI
SICI code
0368-4466(1993)39:6<669:COTVB2>2.0.ZU;2-U
Abstract
The Bi2Sr2CaCu2O8+delta (BSCCO-2212) precursor was melted and solidifi ed by means of various quench methods (atomisation, splatcooling). The amorphous samples were examined by DTA/TG analysis and X-ray powder d iffraction. The average activation energy for crystallisation obtained from the slope of the DTA peak temperature at different heating rate is 361 kJ/mol. X-ray diffraction analysis and thermogravimetric measur ements showed a qualitative difference between rapidly (amorphous) and slowly cooled (crystalline) sample.