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CRYOGENIC BATHYSPHERE FOR RAPID VARIABLE-TEMPERATURE CHARACTERIZATION OF HIGH-TRANSITION TEMPERATURE SUPERCONDUCTORS.

Author(s) : MORELAND J.

Type of article: Article

Summary

A BATHYSPHERE CONSISTING OF AN INVERTED DEWAR FLASK FOR SUBMERSIBLE OPERATION IN CRYOGENIC FLUIDS IS USED TO MEASURE THE RESISTANCE OF SUPERCONDUCTORS, INCLUDING HIGH-TRANSITION TEMPERATURE SUPERCONDUCTING COPPER OXIDES, AS A FUNCTION OF TEMPERATURE FROM 4 TO 300 K. THE AUTHORS DESCRIBE THE CRYO-STAT INCORPORATING THE BATHYSPHERE AND PRESENT DATA ON NIOBIUM-TITANIUM (44% TITANIUM) AND YBACUO WITH RESPECTIVE SUPERCONDUCTING TRANSITION TEMPERATURES OF 9.5 AND 91.5 K. THE CRYOSTAT IS OF SIMPLE, COMPACT DESIGN EASILY ADAPTED TO HIGH-FIELD APPLICATIONS WHERE MAGNET BORE SIZE IS A LIMIF. TEMPERATURE CAN BE VARIED RAPIDLY FROM 300 TO 4 K AT A RATE OF 1 K MIN WITH LESS THAN A 0.1 K THERMAL LAG BETWEEN THE SAMPLE AND THERMOMETER.

Details

  • Original title: CRYOGENIC BATHYSPHERE FOR RAPID VARIABLE-TEMPERATURE CHARACTERIZATION OF HIGH-TRANSITION TEMPERATURE SUPERCONDUCTORS.
  • Record ID : 1990-0011
  • Languages: English
  • Source: Rev. sci. Instrum. - vol. 59 - n. 12
  • Publication date: 1988
  • Document available for consultation in the library of the IIR headquarters only.

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