Te and SiC co-doped MgB2 obtained by an ex situ spark plasma sintering technique

被引：18
作者：
Aldica, G. [1 ]
Popa, S. [1 ]
Enculescu, M. [1 ]
Badica, P. [1 ]
机构：
[1] Natl Inst Mat Phys, Magurele 077125, Ilfov, Romania
来源：
SCRIPTA MATERIALIA | 2013年 / 68卷 / 06期
关键词：
Ceramic superconductors; Borides; Te and SiC co-addition; Spark plasma sintering; CRITICAL-CURRENT DENSITY; IRREVERSIBILITY FIELD; LOW-TEMPERATURE; SUPERCONDUCTORS; ENHANCEMENT; J(C); TI;
D O I：
10.1016/j.scriptamat.2012.11.011
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Ex situ spark plasma sintering was used to obtain dense MgB2 co-doped with SiC and Te. The composition (MgB2) + (SiC)(0.025) + Te-0.01 shows critical current densities J(c)(20 K, 5 T) of 3.5 x 10(2) A cm(-2) and J(c)(5 K, 9 T) of 2 x 10(3) A cm(-2). These values are higher than for pristine samples or those separately doped with Te or SiC. They are also comparable at high fields and temperatures with the best reported values for the co-doped MgB2 bulks produced by conventional in situ methods. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：428 / 431
页数：4
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