Conditions for preparation of nanosized Al2(WO4)3

Pure nanosized Al2(WO4)3 was synthesized according to different methods—solid state synthesis with and without preliminary mechanical activation, co-precipitation and sol–gel method. Structure and morphology of Al2(WO4)3 were determined by powder XRD diffraction and TEM analysis. It was found that the co-precipitation method gives lowest in size, uniform particles (22 nm), distributed in very narrow size region (10–40 nm), expanding more than four times during the thermal treatment. This product seems to be suitable as a starting material for Al2(WO4)3 transparent ceramics.