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A New Inductive Furnace Based on Microwave Irradiation for Growing Long YBa 2 Cu 3 O 7–δ Single‐Domain Bars
Author(s) -
Marinel Sylvain,
Desgardin Gilbert
Publication year - 1998
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/(sici)1521-4095(199812)10:17<1448::aid-adma1448>3.0.co;2-y
Subject(s) - susceptor , materials science , microwave , microwave irradiation , irradiation , induction heating , superconductivity , ceramic , tube (container) , microwave heating , thermal , optoelectronics , composite material , condensed matter physics , electrical engineering , electromagnetic coil , epitaxy , thermodynamics , layer (electronics) , engineering , physics , quantum mechanics , nuclear physics
Growing long YBa 2 Cu 3 O 7–δ single domain bars requires new designs of inductive furnaces based on microwave irradiation. In this paper the authors present a new susceptor design using inductive heating to obtain a positive radial thermal gradient from the heating source. With this system textured YBa 2 Cu 3 O 7–δ (Y123) ceramics are produced and compared with the conventional microwave melt textured growth process. No regulation system is needed and thermal radiation from the sample placed inside the tube is totally eliminated, which may normally cause parasitic nucleations at the periphery of the Y123 bars.