Zhi-hui C.,Center for Low Dimensional Materials |
Zhi-hui C.,Jiangsu Polytechnic University |
Jun-fu Q.,CAS Technical Institute of Physics and Chemistry |
Cheng L.,Center for Low Dimensional Materials |
And 5 more authors.
Ceramics International | Year: 2010
Bi4Ti3O12 nanopowders were prepared by an azeotropic co-precipitation method and the phase evolution process, microstructure and sintering behavior were investigated. The results indicate that well dispersed and agglomerate-free nanocrystalline Bi4Ti3O12 with average particle size of 21 nm can be obtained by calcinating the precursor at 750 °C, which is 50 °C lower than traditional solid reaction. The relative density of the ceramic reaches 96% at 1000 °C and shows no evident decrease until 1100 °C. The broadened sintering temperature range and the lower loss tangent of the ceramic show good sintering activity of the nanopowders. © 2009 Elsevier Ltd and Techna Group S.r.l.