Crystalline phases during the melting of Bi sub 2 Sr sub 2 CaCu sub 2 O sub x

Conference · Tue Jan 01 00:00:00 EST 1991

OSTI ID:5124948

Xu, Ming; Polonka, J; Goldman, A I; Finnemore, D K; Li, Qiang; Laabs, F C

The melting of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub x} material has been studied by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) in order to study the phases that formed in the high temperature regions. Two distinct phases of (Sr{sub 1-x}Ca{sub x})CuO{sub 2} and (Sr{sub 1-x}Ca{sub x}){sub 2}CuO{sub 3} have been observed in the Bi-rich matrix depending upon quenching temperatures. Crystallization from the melt by fast cooling usually produce the co-existence of Bi (2201) and these Sr-Ca-Cu-O phases. 12 refs., 2 figs.

• Research Organization: Ames Lab., IA (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 5124948
• Report Number(s): IS-M-675; CONF-911202-2; ON: DE92002693
• Resource Relation: Conference: Annual fall meeting of the Materials Research Society, Boston, MA (United States), 2-6 Dec 1991
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BISMUTH OXIDES
PHASE STUDIES
CALCIUM OXIDES
COPPER OXIDES
STRONTIUM OXIDES
CRYSTALLIZATION
ELECTRON MICROSCOPY
HIGH-TC SUPERCONDUCTORS
MELTING
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
MICROSCOPY
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
STRONTIUM COMPOUNDS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
360202* - Ceramics
Cermets
& Refractories- Structure & Phase Studies
656100 - Condensed Matter Physics- Superconductivity