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The phase equilibrium diagram of Bi 2 O 3 –SrO–CaO–CuO–A tool of processing the high‐ T c superconducting bismuth‐compounds
Author(s) -
Majewski Peter,
Hettich Bernhard,
Jaeger Herbert,
Schulze Klaus
Publication year - 1991
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.19910030114
Subject(s) - bismuth , superconductivity , phase diagram , materials science , phase (matter) , ceramic , calphad , high temperature superconductivity , analytical chemistry (journal) , condensed matter physics , metallurgy , physics , organic chemistry , chemistry
Research News: The preparation of single phase ceramics and the processing of complex compositions is greatly simplified by a comprehensive understanding of the phase equilibria. Exploiting this knowledge has enabled researchers to prepare the 2223 phase of the superconductor Bi 2 Sr 2 Ca n−1 Cu n O 2n+4+d in 80% purity. The information which can be gleaned from a phase diagram of a superconducting system is explained and the use of the data in producing materials suited for use in superconducting components is described.