NEW ASPECTS ON FLUORINATION OF BI(PB)-SR-CA-CU-O-REASONS FOR THE IMPROVED SUPERCONDUCTING PROPERTIES

Authors
KEMNITZ E SCHEURELL S NAUMOV SW KASIN PE PERSHIN VI KREMER RK
Citation
E. Kemnitz et al., NEW ASPECTS ON FLUORINATION OF BI(PB)-SR-CA-CU-O-REASONS FOR THE IMPROVED SUPERCONDUCTING PROPERTIES, European journal of solid state and inorganic chemistry, 30(7-8), 1993, pp. 701-712
Citations number
14
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
European journal of solid state and inorganic chemistry → ACNP
ISSN journal
09924361
Volume
30
Issue
7-8
Year of publication
1993
Pages
701 - 712
Database
ISI
SICI code
0992-4361(1993)30:7-8<701:NAOFOB>2.0.ZU;2-V
Abstract
The Freeze-drying technique is employed in this study to prepare Bi(Pb )-Sr-Ca-Cu-O(F) superconducting materials. Reactions which occur durin g the sintering process and the implication of the fluorination for hi gh-T(C) superconductivity are investigated. Results of X-ray, REM, EPM A, EDX, and chemical analysis suggest that a small quantity of fluorin e atoms is incorporated into the lattice of the 2223 phase. A ''grain size effect'' and probably the incorporation of fluoride into the latt ice are responsible for improved superconducting properties of the flu orinated materials.