Published March 24, 1989 | Version v1
Patent Metadata-only

Superconductors preparation process and products obtained

Creators

Description

A superconducting fine powder is prepared by mixing a rare earth sol with a solution of at least an alkaline earth nitrate and at least a transition metal nitrate, the pH is fixed for the said nitrates to stay in solution. The mixture is dried, calcined and eventually crushed

Availability note (English)

Available from Institut National de la Propriete Industrielle, Paris (France).

Abstract (French)

Pour la preparation d'une poudre fine supraconductrice on melange d'une part un sol de terre rare et d'autre part une solution d'au moins un nitrate d'alcalino-terreux et d'au moins un nitrate d'un metal de transition, le pH du melange obtenu etant ajuste a une valeur telle que lesdits nitrates restent solubles dans ce melange; on opere ensuite le sechage du melange obtenu; on calcine le produit seche; on opere eventuellement le broyage de la poudre

Additional details

Additional titles

Original title (French)
Procede de preparation de supraconducteurs et produits ainsi obtenus

Publishing Information

Imprint Pagination
9 p.
IPC:
Int. Cl. H01l39/24; C04b35/00.
IPC
Int. Cl. H01l39/24; C04b35/00.
Patent number
FR patent document 2620865/A/

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
21030945
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ALKALINE EARTH METAL COMPOUNDS; FABRICATION; OXIDES; RARE EARTH COMPOUNDS; SPECIFICATIONS; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS
Descriptors DEC
CHALCOGENIDES; OXYGEN COMPOUNDS; SUPERCONDUCTORS

Optional Information

Secondary number(s)
FR patent application 8712935.