A three step method for synthesis of HTSC Bi/sub 2/CaSr/sub 2/Cu/sub 2/O/sub 8+. delta. /

Journal Article · Tue Jan 31 23:00:00 EST 1989 · Materials Research Bulletin; (USA)

DOI:https://doi.org/10.1016/0025-5408(89)90121-9· OSTI ID:5372363

Kishan, P; Chatterjee, S N; Prakash, C; Sachar, B K ^[1]

---

1. Solid State Physics Lab., Delhi (India)

A method for the preparation of high Tc superconductor (HTSC) Bi/sub 2/CaSr/sub 2/Cu/sub 2/O/sub 8+{delta}/ involving three steps has been adopted. Firstly two compositions namely Bi/sub 2/O/sub 3/ + CaO and SrCO/sub 3/ + CuO were prepared, these were then mixed in the molar ratio 1:2. Short duration heat treatment at temperature approaching melting stage, which here was well above 900{sup 0}C due to pre-conversion of Bi/sub 2/O/sub 3/ into CaBi/sub 2/O/sub 4/, resulted in formation of material rich in the desired phase. Characterisation of samples by XRD, EMPA, electrical and magnetic methods is done.

• OSTI ID: 5372363
• Journal Information: Materials Research Bulletin; (USA), Journal Name: Materials Research Bulletin; (USA) Vol. 24:2; ISSN MRBUA; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HIGH TEMPERATURE
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
SUPERCONDUCTORS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION