Glass Formation of High-Tc Compound BiCaSrCu2Ox by Rapid Quenching
- 1 May 1988
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 27 (5A), L777-778
- https://doi.org/10.1143/jjap.27.l777
Abstract
A new high T c compound, BiCaSrCu2O x , was successfully prepared in glassy form by a twin-roller quenching method for the first time. The rapidly quenched glass has a glass transition temperature of 390°C and a crystallization temperature (T x ) of 444°C. Heat-treatment at higher temperatures above T x increased the crystallinity and at 850°C produced X-ray patterns identical to those of the starting compound. The resistivity of the sample heat-treated at 850°C shows the onset T c at 88 K. These findings are expected to facilitate fiber drawing for such high T c compounds.Keywords
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