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Mechanical Properties and Fractographical Analysis by Laser Scanning Confocal Microscopy (LSCM) of Laser Textured Bi(Pb)-2212 Superconducting Materials

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Abstract:

Vitreous cylinders with compositions Bi2-xPbxSr2CaCu2Oy, (x = 0 and 0.4) were prepared and used as precursors to fabricate textured bars through a Laser Floating Zone melting method (LFZ). The resulting textured cylindrical bars were annealed and were mechanically characterized through mechanical strength, σ, Young modulus, E, Vickers hardness, H, and Weibull parameters, S0 and m. The study of the mechanisms controlling the fracture process was made by means of the fractographical analysis using Laser Scanning Confocal Microscopy (LSCM). Finally, the microstructure was determined and correlated with the mechanical properties.

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Periodical:

Advances in Science and Technology (Volume 47)

Pages:

82-87

DOI:

https://doi.org/10.4028/www.scientific.net/AST.47.82

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Online since:

October 2006

Authors:

F. Capel, M.A. Madre, A. Sotelo, M. Mora, J.C. Diez, José M. López-Cepero

Keywords:

Bi-2212, Confocal Microscopy, Mechanical Strength, Weibull Parameter, Zone Melting

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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