Mechanochemical synthesis of indium complex oxides (InAO4; A = P, V, Nb, Ta, Sb) and their solid solutions

Indium complex oxides, InAO4 (A = P, V, Nb, Ta, Sb), were synthesized by milling of the In2O3 and A2O5 mixture using planetary ball mill at room temperature. Formation of these compounds was monitored by powder X-ray diffraction (XRD) and was found to be complete with 240 or 480 min. This method has been successfully extended to the synthesis of solid solutions, InP1–xVxO4 and InTa1–xNbxO4, between these indium complex oxides.