TY  - CONF
KW  - Electric currents; Microcracks; Microstructure; Plastic deformation; Silver; Strain hardening; Tensile strain
KW  -  Composite superconductors; Elastic limits; Room temperature; Transgranular microcracks
KW  -  Superconducting materials
ID  - scholars124
N2  - Tensile strain dependence of electromechanical characteristics of high-current, (Hic) and high-strength, (Hs) type Ag/Bi2223 composite tapes measured at room temperature, RT and 77K is investigated. Mechanical strength of composites revealed strain-hardening signature in Bi2223 filaments due to plastic strain above the elastic limit. Critical current, Ic maintained constant value up to the elastic limit then decreased slowly before finally dropped to about 10 at 0.19 and 0.39 strain, signaling a three-stage limitation. Microstructure observations and electromechanical response of the composites suggest that limited longitudinal, transverse, interfacial, granular and transgranular microcracks formed during gradual imposition of strain hardening in Bi2223 filaments may be responsible for the slow reduction of Ic in the initial mechanical stage. © 2006 Materials Research Society.
CY  - San Francisco, CA
VL  - 946
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-33947731746&doi=10.1557%2fproc-0946-hh04-08&partnerID=40&md5=7fa0d5d44e3ee7c39a9b0e11f91044b6
A1  - Adam, M.I.
A1  - Osamura, K.
Y1  - 2006///
SP  - 19
TI  - Strain dependent transport and mechanical characteristics of high-current and high-strength type Ag/Bi2223 composite superconductors
N1  - cited By 0; Conference of 2006 MRS Spring Meeting ; Conference Date: 17 April 2006 Through 21 April 2006; Conference Code:69399
AV  - none
EP  - 24
SN  - 02729172
PB  - Materials Research Society
ER  -