Title: Stress release at Y2BaCuO5 inclusions in fast melt processed YBa2Cu3O7-x observed by micro-Raman spectroscopy
Authors: Provoost, R
Rosseel, Kris
Moshchalkov, Victor
Silverans, Roger
Bruynseraede, Yvan
Dierickx, D
Van der Biest, Omer
Issue Date: May-1997
Publisher: Amer inst physics
Series Title: Applied Physics Letters vol:70 issue:21 pages:2897-2899
Abstract: We have studied the interface region between the superconducting YBa2Cu3O7-x (123) matrix and the embedded nonsuperconducting Y2BaCuO5 (211) inclusions in fast melt processed samples, by recording micro-Raman spectra along lines crossing these inclusions. The observed relative shifts of the 123 Raman modes indicate the accumulation of compressive stress in the bulk of the 123 material and a release of this stress around the 211 inclusions. These results show that for practical applications of the fast melt processed materials, beside strong pinning, proper mechanical properties around the pinning centers are important. (C) 1997 American Institute of Physics.
ISSN: 0003-6951
Publication status: published
KU Leuven publication type: DI
Appears in Collections:Solid State Physics and Magnetism Section
Physical Metallurgy and Materials Engineering Section (-)

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