Temperature-time-transformation diagrams for crystallization process of rapidly quenched Bi-Pb-Ca-Sr-Cu-O glasses

The formation process of the superconducting phases from the rapidly quenched Bi2−xPbxCa2Sr2Cu3Ow (0≤x≤0.4) glasses has been studied as a function of both heat treatment temperature and time. The temperature-time-transformation (T-T-T) diagrams constructed for the glasses greatly depend on the Pb co...

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Veröffentlicht in:	Applied physics letters 1990-07, Vol.57 (2), p.195-197
Hauptverfasser:	TATSUMISAGO, M, TSUBOI, S, TOHGE, N
Format:	Artikel
Sprache:	eng
Schlagworte:	360202 - Ceramics, Cermets, & Refractories- Structure & Phase Studies 360204 - Ceramics, Cermets, & Refractories- Physical Properties 656100 - Condensed Matter Physics- Superconductivity ALKALINE EARTH METAL COMPOUNDS BISMUTH COMPOUNDS BISMUTH OXIDES CALCIUM COMPOUNDS CALCIUM OXIDES CHALCOGENIDES CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY Condensed matter: structure, mechanical and thermal properties COPPER COMPOUNDS COPPER OXIDES CRYSTAL-PHASE TRANSFORMATIONS CRYSTALLIZATION DIAGRAMS ELECTRIC CONDUCTIVITY ELECTRICAL PROPERTIES Equations of state, phase equilibria, and phase transitions Exact sciences and technology LEAD COMPOUNDS LEAD OXIDES MATERIALS SCIENCE OXIDES OXYGEN COMPOUNDS PHASE DIAGRAMS PHASE TRANSFORMATIONS PHYSICAL PROPERTIES Physics Specific phase transitions STRONTIUM COMPOUNDS STRONTIUM OXIDES SUPERCONDUCTIVITY TEMPERATURE DEPENDENCE TIME DEPENDENCE TRANSITION ELEMENT COMPOUNDS
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Zusammenfassung:	The formation process of the superconducting phases from the rapidly quenched Bi2−xPbxCa2Sr2Cu3Ow (0≤x≤0.4) glasses has been studied as a function of both heat treatment temperature and time. The temperature-time-transformation (T-T-T) diagrams constructed for the glasses greatly depend on the Pb content. The formation region of Ca2PbO4, which may play an important role in producing the 110 K phase, is very wide in the T-T-T diagrams of Pb-rich samples.
ISSN:	0003-6951 1077-3118
DOI:	10.1063/1.104285