Microcomposites based on superconducting cupratesстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из перечня ВАК
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Chemical aspects of formation of microcomposite materials based on the superconducting cuprates are considered. The materials are composed of a superconducting ceramic matrix and micro- or nanoinclusions of non-superconducting phase uniformly distributed in the matrix. Requirements on functional characteristics of the superconducting ceramics are given and routes to high critical current densites are outlined. Phase equilibria in the <<parent>> systems are considered. Physical and chemical criteria for the choice of phases that can form non-superconducting inclusions are formulated. Methods of prepatation, the materials and microstructure and superconducting properties of the composites based on cuprates RBa(2)Cu(3)O(7-delta) (R is a rare-eatrh element) and on Bi(2)Sr(2)CaCu(2)O(8+delta) and (Bi,Pb)(2)Sr(2)Ca(2)Cu(3)O(10+delta) are considered.