  Superconductivity in thin films and powders, and in single crystals of Pr-123
has been found by Blackstead et al. and Zou et al., respectively. Nevertheless,
up to now it has never been reported in sintered-policrystalline samples. We
have prepared high-quality samples of this material by following a sol-gel
method.
  We characterized the structure of all samples by using XRD and SEM-EDS
techniques. Magnetic characterization was performed by measuring the
magnetization as a function of the temperature T, and the applied magnetic
field H. Measurements were taken in the ranges 2 K <T < 400 K and 0 <H< 5
Tesla. In this work we report by the first time superconductivity in Pr-123
sintered-polycristalline samples, with $T{_c}$ around 90 K, and $H{_c1}$ around
870 Oe.
