Author/Authors :
Abbasian، A. R. نويسنده Material Research School, Nuclear Science and Technology Research Institute, Isfahan, Iran , , Rahimipour، M. R. نويسنده , , Hamnabard، Z. نويسنده Laser and Optics Research School, Nuclear Science and Technology Research Institute, Tehran, Iran ,
Abstract :
In order to evaluate the sintering behavior of lithium meta titanate (Li2TiO3) powder, the shrinkage of powder
compact was measured under constant rates of heating. Densification curves for Li2TiO3 have been constructed with
the help of shrinkage powder measured at different heating rates. The activation energy at the initial stage of sintering
was determined by analyzing the densification curves and the value of Q=377 kJ/mol was obtained. The diffusion
mechanism at the initial sintering stage was determined by the analytical method applied to the constant rates of
heating data. This analysis exhibited that the dominant mechanism for initial sintering stage of Li2TiO3 is volume
diffusion from grain boundary and surfaces.
