Influence of shock-wave action on the critical current of bismuth (2223) first-generation HTSC ribbons

Properties and Structural Transformations of Mgb2-tapes under the Action of Plasma Shock Waves

“…The mechanism of superconductivity in this compound is considered to be electronphonon [5] and the current-carrying capacity mainly depends on the structural-phase state (size and morphology of grains, the presence of point defects, the effective pinning centers and packing density in the superconducting layers) [6][7][8][9]. All of these KnE Materials Science MIE-2017 structural factors can be transformed under the action of shock waves of plasma and as a result, the current-carrying capacity can be increased.…”

Action of the Pulses of Shock Waves on the Structure and Superconducting Parameters of MgB2 Tapes

“…Shock waves have been used to increase the critical current density in YBCO (123) and Bi (2223) composite HTSC (high-temperature superconductor) tapes [1][2][3][4][5][6][7][8]. This study is based on the effect of the formation of point defects, i.e., vacancies and interstitial atoms (Frenkel collective pairs), on the front of shock waves as they pass through metal targets [9,11].…”

Study of axial plasma flows in the PF-4 plasma focus-type setup

“…Recently, using the PF-4 "Tyulpan" plasma-focus setup (Lebedev Physical Institute), a series of studies on modification of structural materials was performed with the purpose of imparting them new properties, including production of nanocoatings using plasma flows, improving conducting properties of high-temperature superconductors [1][2][3][4][5][6]. Furthermore, the possibility of using the PF setups for simulating astrophysical objects such as jets emitted by black holes [7] was considered.…”