Czechoslovak Journal of Physics

, Volume 52, Supplement 1, pp A229–A232 | Cite as

Internal stresses in superconductors

  • L. Ceniga
  • P. Diko


The paper deals with internal stresses in the anisotropic Y2BaCuO5 (211)-YBa2Cu3O7 (123) particle-matrix system representing the melt-processed RE−Ba−Cu−O superconductor. The internal stresses originate during a cooling process due to different thermal expansion coefficients of the 123 matrix and the 211 particle. Obtained by the Griffit's crack formation condition, the 211 particle critical radius is derived as illustrated by the observed microcrack pattern.


74.72.B 83.10.F. 81.40 

Key words

Stress thermal expansion YBa2Cu3O7 Y2BaCuO5 


  1. [1]
    L. Ceniga: Mat. Eng., 1 (2001) 22 (EDIS, University of Žilina, Slovakia).Google Scholar
  2. [2]
    P. Diko: Supercond. Sci. Technol. 11 (1998) 68.CrossRefGoogle Scholar

Copyright information

© Institute of Physics, Academy of Sciences of the Czech Republic 2002

Authors and Affiliations

  • L. Ceniga
    • 1
  • P. Diko
    • 2
  1. 1.Institute of Materials ResearchKošiceSlovak Republic
  2. 2.Institute of Experimental PhysicsKošiceSlovak Republic

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