In this work, the effect of substitution of Zn for Cu on the superconductin
g properties of CaLaBaCu3O7-delta has been studied. CaLaBa[Cu1-xZnx](3)O7-d
elta samples present a sharp superconducting transition with a transition w
idth that increases with x. The depletion of T-c with x is consistent with
a non magnetic disordering model.