HEAT-TREATMENTS, MICROSTRUCTURE AND PROPERTIES OF INTERNAL-TIN NB3SN

Authors
TAILLARD R VERWAERDE C BRUZEK CE SULTEN P
Citation
R. Taillard et al., HEAT-TREATMENTS, MICROSTRUCTURE AND PROPERTIES OF INTERNAL-TIN NB3SN, IEEE transactions on applied superconductivity, 7(2), 1997, pp. 1504-1507
Citations number
8
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on applied superconductivity → ACNP
ISSN journal
10518223
Volume
7
Issue
2
Year of publication
1997
Part
2
Pages
1504 - 1507
Database
ISI
SICI code
1051-8223(1997)7:2<1504:HMAPOI>2.0.ZU;2-7
Abstract
The decrease of temperature ramp rate during heat treatments of the in ternal tin process causes an increase of the critical current density at low and medium magnetic fields (4-16T). This paper investigates the metallurgical origin of this benefit by considering the effects of a change of heating rate on the phase transformations of bronze and on t he filament recrystallization. The low temperature formation of Nb3Sn is important for the critical current density of this material, This i s explained by the composite microstructure evolution.