H - Electricity – 01 – L
Patent
H - Electricity
01
L
H01L 39/24 (2006.01)
Patent
CA 2292701
The invention relates to a process for producing a shaped body, in which a mixture of oxidic starting powders or a superconducting material, which comprises at least 30% by volume of platelet-shaped primary particles and has such a composition that a high-temperature superconducting material is formed on later, suitable thermal treatment, is comminuted by milling, shearing and/or rolling in such a way that the comminuted powder has a powder particle size distribution having a d90 of <= 20 µm, and in which the powders which have been comminuted in this way are isostatically compacted by the dry bag method.
L'invention concerne un procédé de production d'un corps de moulage, selon lequel un mélange de poudre de départ de type oxydique ou un matériau supraconducteur contenant au moins 30 % en volume de particules primaires, en paillettes, et dont la composition permet d'obtenir un matériau supraconducteur à haute température lors d'un traitement thermique ultérieur approprié, est broyé par pulvérisation, cisaillage et/ou laminage, de manière que la poudre broyée présente une répartition granulométrique pulvérulente d'une valeur d90 </= 20 mu m, et selon lequel les poudres ainsi broyées peuvent être compactées par voie isostatique à l'aide d'un procédé de matrices sèches.
Bock Joachim
Gauss Stephan
Neumann Jurgen
Riedel Gunter
Aventis Research & Technologies Gmbh & Co. Kg
Fetherstonhaugh & Co.
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