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Synthesis and Characterisation of Bulk Textured Phases in the Bi(Pb)—Sr—Ca—Cu—O System
Author(s) -
Murugakoothan P.,
Jayavel R.,
Subramanian C.
Publication year - 1995
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170300502
Subject(s) - misorientation , supercooling , materials science , microstructure , texture (cosmology) , phase (matter) , superconductivity , cuprate , mineralogy , crystallography , condensed matter physics , directional solidification , crystal (programming language) , doping , composite material , chemistry , thermodynamics , grain boundary , optoelectronics , physics , image (mathematics) , organic chemistry , artificial intelligence , computer science , programming language
Growth of lead‐doped textured Bi‐cuprate, using an immersed heater floating zone (TSFZ) apparatus, from a narrow supercooled melt created an essentially dense structure consisting of locally aligned long platelet crystal grains. The extended grains have their long axes parallel to the growth axis with a low angle misorientation. The effect of gas bubbles and the pulling rates on the microstructure and superconducting transition temperature of the textured boules have been studied. The decomposing nature of the 2223 phase on melting leads to form the energetically favourable low T c 2212 phase.