Share

CRITICAL CURRENT DISTRIBUTIONS IN SUPERCONDUCTING COMPOSITES.

Author(s) : WARNES W. H., LARBALESTIER D. C.

Type of article: Article

Summary

THE TRANSITION FROM THE FLUX PINNING STATE TO THE FULL FLUX FLOW STATE OCCURS OVER A RANGE OF CURRENT IN COMPOSITE SUPERCONDUCTORS. THE CRITICAL CURRENT DOES NOT HAVE A SINGLE, UNIQUE VALUE. THE AUTHORS DESCRIBE A TECHNIQUE FOR DERIVING THE CRITICAL CURRENT DISTRIBUTION FROM THE RESISTIVE CRITICAL CURRENT TRANSITION. THE ANALYSIS HAS BEEN APPLIED TO NIOBIUM-TITANIUM AND NIOBIUM-TIN COMPOSITES. COMPOSITES WITH IRREGULAR FILAMENTS HAVE ALSO BEEN EXAMINED. THE ANALYSIS SHOWS THAT GOOD CONDUCTORS HAVE NARROW RESISTIVE TRANSITIONS WITH AVERAGE CRITICAL CURRENT VALUES WITHIN 5-10% OF A HIGH SENSITIVITY MEASUREMENT. THIS DIFFERENCE BROADENS TO ABOUT 35% FOR A BADLY SAUSAGED COMPOSITE.

Details

  • Original title: CRITICAL CURRENT DISTRIBUTIONS IN SUPERCONDUCTING COMPOSITES.
  • Record ID : 1987-1679
  • Languages: English
  • Source: Cryogenics - vol. 26 - n. 12
  • Publication date: 1986

Links


See other articles in this issue (8)
See the source

Indexing