METHOD FOR MANUFACTURING SUPERCONDUCTIVE MATERIAL BASED ON Bi-2223 WITH CRITICAL TRANSITION TEMPERATURE OF 197 K

摘要

FIELD: electricity.SUBSTANCE: invention is referred to manufacturing of new high-temperature superconductive (HTSC) and it allows manufacturing the material featuring superconductivity at temperature of 197 K. This invention can be used widely in power engineering as energy-saving material, in particular it is the most appropriate base for HTSC cables. Upon cooling below temperature of superconductive transition (T) a sample of standard composition of Bi-2223 is placed into vacuum (P?10Torr), and at impact of ambient pressure of P?10Torr this sample of material Bi-2223 demonstrates properties of superconductive material with transition temperature of 197 K.EFFECT: superconductive material manufactured by the above method has higher critical temperature than all known high-temperature superconductive materials.3 cl, 2 dwg, 3 ex