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HIGH TEMPERATURE SUPERCONDUCTORS: THEIR PROMISE AND CHALLENGE.

Author(s) : HULM J. K., LAVERICK C.

Type of article: Article

Summary

THIS PAPER, A CONDENSATION OF THE HULM PANEL BRIEFING (NOVEMBER 1987), DEALS WITH THETWO CLASSES OF HIGH TRANSITION TEMPERATURE (T) OXIDES BASED EITHER ON THE CHEMICAL ALTERATION OF A LANTHANUM-COPPER-OXYGEN COMPOUND (T NEAR 40 K) OR AN YTTRIUM-BARIUM-COPPER-OXYGEN COMPOUND (1-2-3 COMPOUNDS WITH T NEAR 90 K). IT GIVES THE STATUS OF THEORETICAL UNDERSTANDING AND RECALLS THE PHYSICAL PROPERTIES IMPORTANT FOR TECHNOLOGY (CRITICAL CURRENT, CRITICAL TEMPERATURE, UPPER CRITICAL MAGNETIC FIELD, MECHANICAL PROPERTIES, CHEMICAL STABILITY, RADIATION EFFECTS, ALTERNATING CURRENT LOSSES). THE FIELDS OF APPLICATION OF SUPERCONDUCTORS, THE IMPACT OF THE NEW MATERIALS ARE THEN STUDIED. THOUGH REMARKABLE PROGRESS HAS BEEN MADE DURING THE LAST YEAR IN UNDERSTANDING THE NATURE AND THE STRUCTURE OF THE NEWSUPERCONDUCTING CERAMICS, THE COMMENTS ON THE TECHNICAL DIFFICULTIES AND BARRIERS TO APPLICATION ARE STILL VALID. J. V.

Details

  • Original title: HIGH TEMPERATURE SUPERCONDUCTORS: THEIR PROMISE AND CHALLENGE.
  • Record ID : 1989-0436
  • Languages: English
  • Source: Cryogenics - vol. 28 - n. 8
  • Publication date: 1988

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