CaCO3 addition effects on the MgB2 superconducting properties

G. SERRANO; G. BRIDOUX; A. SERQUIS

Rio de Janeiro, Brasil

Conferencia; 11th International Conference on Advanced Materials; 2009

IUMRS-SBMAT

We present a study of the effect of CaCO3 additions in the microstructure, critical current density and upper critical field of MgB2 bulk superconducting samples. The aim of the work is to study a possible counterbalance effect due to the simultaneous hole and electron doping, and to identify the possible formation of ideal nanoscale defects to optimize the critical current density under different applied field regimes.