Global Patent Index - EP 0793850 A1

EP 0793850 A1 19970910 - LARGE SINGLE DOMAIN 123 MATERIAL PRODUCED BY SEEDING WITH SINGLE CRYSTAL RARE EARTH BARIUM COPPER OXIDE SINGLE CRYSTALS

Title (en)

LARGE SINGLE DOMAIN 123 MATERIAL PRODUCED BY SEEDING WITH SINGLE CRYSTAL RARE EARTH BARIUM COPPER OXIDE SINGLE CRYSTALS

Title (de)

MATERIAL DES TYPS 123 MIT GROSSER EINZELDOMAINE HERGESTELLT DURCH IMPFEN VON SELTENERDBARIUMKUPFEROXIDEINKRISTALLEN MIT EINKRISTALLEN

Title (fr)

MATERIAU 123 A VASTE MONODOMAINE OBTENU PAR ENSEMENCEMENT AVEC DES MONOCRISTAUX D'OXYDE DE TERRES RARES-BARYUM-CUIVRE

Publication

EP 0793850 A1 19970910 (EN)

Application

EP 96903372 A 19960111

Priority

  • US 9600200 W 19960111
  • US 37193395 A 19950112

Abstract (en)

[origin: WO9621934A1] A method of fabricating bulk YBa2Cu3Ox where compressed powder oxides and/or carbonates of Y and Ba and Cu present in mole ratios to form YBa2Cu3Ox are heated in the presence of an Nd1+xBa2-xCu3Oy seed crystal to a temperature sufficient to form a liquid phase in the YBa2Cu3Ox while maintaining the seed crystal solid. The materials are slowly cooled to provide a YBa2Cu3Ox material having a predetermined number of domains between 1 and 5. Crack-free single domain materials can be formed using either plate shaped seed crystals or cube shaped seed crystals with a pedestal of preferential orientation material.

IPC 1-7

H01B 12/00; C04B 35/505; C04B 35/622; C04B 35/653

IPC 8 full level

C04B 35/45 (2006.01); C04B 35/653 (2006.01); C30B 9/00 (2006.01); H10N 60/01 (2023.01)

CPC (source: EP)

C04B 35/4508 (2013.01); C04B 35/653 (2013.01); C30B 9/00 (2013.01); C30B 29/225 (2013.01); H10N 60/0268 (2023.02)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 9621934 A1 19960718; AU 4748096 A 19960731; EP 0793850 A1 19970910; EP 0793850 A4 19980819

DOCDB simple family (application)

US 9600200 W 19960111; AU 4748096 A 19960111; EP 96903372 A 19960111