Published November 1991
| Version v1
Journal article
Annealing conditions and microstructure influence on decoupling phenomena in Bi-compounds
- 1. Paris-11 Univ., 91 - Orsay (France)
- 2. Centre National de la Recherche Scientifique, 92 - Meudon-Bellevue (France)
- 3. Ecole Superieure de Physique et Chimie Industrielles, 75 - Paris (France)
Description
a.c. susceptibility measurements and 3D electronic microscopy observation were carried out on three Bi-compounds (2212 and 2223). Depending on the annealing conditions, one observes lamellar-type materials organized either in a more or less dense structure of fine particles or in very large slabs. The a.c. susceptibility signals allow to separate the intergranular from the intragranular effects. The combined results obtained by both techniques lead us to conclude that the intergranular and the intragranular decoupling, induced by magnetic fields are of same nature, i.e. occur at the (BiO)2 slab. 7 refs.; 11 figs
Abstract (French)
Nous avons couple des mesures de susceptibilite alternative et d'observation au microscope electronique en 3D sur trois echantillons supraconducteurs au bismuth (2212 et 2223). Selon les conditions de recuit, on observe des materiaux de type lamellaire, organises soit en une structure plus ou moins dense de fines particules, soit en larges plaquettes. L'etude des signaux de susceptibilite alternative χ' et χ'' permet de separer les effets intergranulaires des effets intragranulaires. Les resultats combines des deux techniques nous ont conduits a conclure que les deux types de decouplage (inter et intragranulaires), induits par les champs magnetiques sont de meme nature, c'est-a-dire se produisent au niveau des bicouches (BiO)2Additional details
Additional titles
- Original title (French)
- Influence des traitements thermiques et de la microstructure sur les phenomenes de decouplage dans les composes au bismuth
Publishing Information
- Journal Title
- Journal de Physique 3. Physique Appliquee, Science des Materiaux, Fluides, Plasmas et Instrumentation
- Journal Volume
- 1
- Journal Issue
- 11
- Series
- J. Phys. 3, Phys. Appl. Sci. Mater. Fluides Plasmas Instrum.
- Journal Page Range
- 1773-1780
- ISSN
- 1155-4320
- CODEN
- JPAIE
Conference
- Title
- 2. National workshop Superconducting Ceramics with high critical Temperature.
- Original Conference Title
- 2. Journees Nationales d'etudes Ceramiques Supraconductrices a haute temperature critique
- Dates
- 6-7 Nov 1990.
- Place
- Caen (France).
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 23030292
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ANNEALING; BISMUTH COMPOUNDS; CALCIUM OXIDES; COPPER OXIDES; CRYSTAL STRUCTURE; HIGH-TC SUPERCONDUCTORS; MAGNETIC FIELDS; MAGNETIC FLUX; MAGNETIC SUSCEPTIBILITY; STRONTIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; HEAT TREATMENTS; MAGNETIC PROPERTIES; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; STRONTIUM COMPOUNDS; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS