Figure 3: XRD patterns of the stoichiometric powder mixtures before and after a mechanochemical treatment for 40 min under condition number 2.
From: Rapid and direct synthesis of complex perovskite oxides through a highly energetic planetary milling

(a) Bi2O3-Na2CO3-TiO2-Li2CO3-K2CO3. (b) K2CO3-Na2CO3-Nb2O5-Bi2O3-Li2CO3-ZrO2-TiO2. The insets are SEM images of each powder mixture.