INVESTIGADORES
SERQUIS Adriana Cristina
artículos
Título:
Effects of Sheath Materials and Thermo-mechanical Treatments on the Superconductivity of MgB2 Wires and Tapes
Autor/es:
G. SERRANO; A. SERQUIS; D. RODRIGUES JR.; M. T. MALACHEVSKY; C. AYALA
Revista:
Journal of Physics: Conference Series
Editorial:
IOP
Referencias:
Año: 2008 vol. 97
ISSN:
1742-6596
Resumen:
In this work a combination of stainless steel, copper, titanium and silver are used as sheath materials to fabricate SiC doped MgB2 wires and tapes by the powder-in-tube (PIT) method. The samples are cold deformed to the final dimension with several intermediate and final heat treatments between 200°C and 900°C. The microstructure and phase composition of the tapes are followed during the deformation and heat treatment processes by Scanning Electron Microscopy (SEM) and X-Ray Diffractometry (XRD). Critical current densities (Jc) were determined by magnetization. The correlation between the superconducting properties and the microstructural characteristics is discussed.
