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dc.contributor.authorVarma, K B R-
dc.contributor.authorRao, K J-
dc.contributor.authorRao, C N R-
dc.identifier.citationApplied Physics Letters 54(1), 69-71 (1989)en_US
dc.descriptionRestricted Accessen_US
dc.description.abstractBy roller quenching and water quenching melts of Bi2(Ca, Sr)3Cu2O8+δ, glasses have been obtained. These glasses exhibit two glass transitions as well as two crystallization transitions. Microwave absorption studies show the glass to be weakly superconducting at 77 K, probably due to the presence of ultramicrocrystallites. The glass on crystallization at 870 K gives the crystalline n=1 member of the homologous series Bi2(Ca, Sr)n+1CunO2n+4 and the n=2 member on annealing at 1100 K. The glass route provides a unique means of obtaining the n=2 member of the series. On prolonged annealing of the glass at 1120 K, the n=3 member seems to be formed.en_US
dc.publisherAmerican Institute of Physicsen_US
dc.rights© 1989 American Institute of Physicsen_US
dc.subjectBismuth Calcium Copper Strontium Oxides Mixeden_US
dc.subjectDifferential scanning calorimetryen_US
dc.subjectMicrowave absorptionen_US
dc.subjectAmorphous stateen_US
dc.subjectElectrical conductivityen_US
dc.subjectSuperconducting transitionen_US
dc.subjectX ray diffractionen_US
dc.subjectHigh temperature superconductoren_US
dc.subjectTransition metal Compoundsen_US
dc.titleNovel features of rapidly quenched melts of Bi2(Ca,Sr)3Cu2O8+δen_US
Appears in Collections:Research Papers (Prof. C.N.R. Rao)

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