Effect of sintering condition on properties of Cr-doped Pb0.95Sr0.05 (Zr0.53Ti0.47)O3 ceramics

[摘要] The effects of sintering temperature (ð‘�??_sinter) and sintering time (ð‘�?_sinter) were investigated for Pb_0.95Sr_0.05(Zr_0.53Ti_0.47)O₃ + ð‘�?%wtCr₂O₃ system to determine the optimum regimen of sintering. The study was performed by determining the following parameters: relative density (ρ_rel) and sintering rate ($dot{varepsilon}_{ho}$). The grain size was diminished when small amounts of Cr₂O₃ were added to system and was enhanced when the sintering temperature and time was increased. The dielectric constant becomes maximum and the electric loss becomes minimum with the sintering temperature of 1290°C. The optimum regimen of sintering is ð‘�??_sinter = 1290°C during 70 min. The piezoelectric properties for the optimum regimen of sintering were studied.

[学科分类] 材料工程

[关键词] Ceramics;chemical synthesis;dielectric properties.