Title :
Stress-strain effects in Bi-2212 superconductors
Author :
Viouchkov, Y. ; Weijers, H.W. ; Schwartz, J.
Author_Institution :
Nat. High Magnetic Field Lab., Florida State Univ., Tallahassee, FL, USA
fDate :
3/1/2000 12:00:00 AM
Abstract :
Mechanical properties of Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub x/ (Bi-2212) superconducting tapes at room temperatures were studied to define critical parameters limiting their use for high field insert magnets. This investigation was dedicated to stress-strain effects and mechanical interactions between the ceramic and metal matrix due to thermal cycling. A model of mechanical behavior during thermal cycling of Ag-sheathed Bi-2212 tapes is proposed.
Keywords :
bismuth compounds; calcium compounds; ceramics; high-temperature superconductors; silver; stress-strain relations; strontium compounds; superconducting tapes; thermal stresses; 20 C; Ag-sheathed Bi-2212 tapes; Bi-2212 superconductors; Bi/sub 2/Sr/sub 2/CaCu/sub 2/O-Ag; Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub x/; ceramic; critical parameters; high field insert magnets; mechanical interactions; mechanical properties; metal matrix; room temperature; stress-strain effects; superconducting tapes; thermal cycling; Ceramics; Conductors; Laboratories; Magnetic field induced strain; Magnetic properties; Production; Stress; Superconducting films; Superconducting magnets; Superconductivity;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
