Thermal Investigation of Copper-Doped-Zirconia Nanoparticles Check Access

Detailed thermal studies were carried out to determine the nano-structural changes in zirconia (ZrO₂) ceramics upon incorporation of different amounts of the Cu²⁺ cations. In order to calculate the mean particle size and particle size distribution of ZrO₂-CuO (ZC) system low frequency Raman spectroscopy (LFRS) was used. The results show that the particle growth is insignificant up to the temperature of 450°C for all the samples due to annealing of inner defects. With further increase of the temperature the nanoparticles grow rapidly with discontinuity at 540°C which is connected with the phase transition from tetragonal to monoclinic phase.