Electrical behavior of BaSnO3 bulk samples formed by slip casting: effect of synthesis methods used for obtaining the ceramic powders

Y.H. OCHOA; F. SCHIPANI; C.M. ALDAO; M.A. PONCE; J.E. RODRÍGUEZ PÁEZ

MATERIALS RESEARCH BULLETIN

PERGAMON-ELSEVIER SCIENCE LTD

Lugar: Amsterdam; Año: 2016 vol. 78 p. 172 - 178

0025-5408

In order to build bulk pieces using the slip casting technique, barium stannate (BaSnO3) ceramicpowders were synthesized using two chemical methods (controlled precipitation and Pechini).Differences in the electrical behavior of the pieces, depending on the synthesis method employed, werethen determined. For the analysis, a stable suspension of the synthesized ceramic powder (or 57.6 %solids slip) was obtained using water as solvent; the slip was poured into a mold to produceparallelepiped shaped green pieces. The electrical behavior in air at 300 °C was determined for piecessintered using a range of temperatures. The results of this electrical characterization showed that themethod of synthesis has strong effects on the electrical behavior of the sintered samples.