Abstract: | AbstractA single phase of calcium copper titanate [CaCu3Ti4O12 (CCTO)] was produced at lower temperature and shorter calcination time via a novel semiwet route. Undoped CCTO and zinc doped CaCu3?xZnxTi4O12 samples with x?=?0·10, 0·20 and 0·30 were prepared by this method for the first time using solid TiO2 powder in metal nitrate solutions. The CaCu3?xZnxTi4O12 ceramics were characterised by thermogravimetric/differential thermal analysis, X-ray diffraction, SEM and EDX techniques. The SEM images of the sintered CaCu3?xZnxTi4O12 ceramics showed average grain size in the ranges of 2–6, 8–13, 12–16 and 14–20 μm for x?=?0·00, 0·10, 0·20 and 0·30 respectively. Energy dispersive X-ray spectroscopy studies confirm the purity of parent and Zn doped CCTO ceramics. At room temperature, the dielectric constants of Zn doped CCTO are always higher than pure CCTO. CaCu3?xZnxTi4O12 (x?=?0·20) ceramic has the maximum value of ?r≈4347 along with the minimum value of tan?δ≈0·14 at 1 kHz. |