Higher critical current density achieved in Bi-2223 High-Tc superconductors

被引：17

作者：

Shalaby, M. S. ^{[2
]}

Hashem, H. M. ^{[1
]}

Hammad, T. R. ^{[1
]}

Wahab, L. A. ^{[2
]}

Marzouk, K. H. ^{[2
]}

Soltan, S. ^{[1
]}

机构：

[1] Helwan Univ, Fac Sci, Dept Phys, Helwan Cairo 11798, Egypt

[2] Atom Energy Author, Dept Solid State & Accelerators, Natl Ctr Radiat Res & Technol, Cairo, Egypt

来源：

JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES | 2016年 / 9卷 / 03期

关键词：

Superconductors; Bi-2223; Critical current density; Magnetoptics; SYSTEM; MICROSTRUCTURE; MAGNETIZATION; PHASE;

D O I：

10.1016/j.jrras.2016.04.001

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Bi2Sr2Ca2Cu3Ox (Bi-2223) were prepared using a solid state reaction method at different sintering times and temperatures. Structural phase identifications have been done using X-Ray analysis and refinement by Reitveld method which proves the coexistence of Bi-2223 and Bi-2212 phases. The critical transition temperature T-c and critical current density J(c) values were measured using superconducting quantum interference device magnetometer (SQUID) and by the magneto-optics technique. A remarkable rapid decrease to the diamagnetic signal in the magnetization versus temperature M(T) at 110 K and J(c) around 1.2 x 10(7) A/m(2) at 5 K are confirmed for the Bi-2223 compound. Copyright (C) 2016, The Egyptian Society of Radiation Sciences and Applications. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

引用

页码：345 / 351

页数：7

共 50 条

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