ZrO_2-Y_2O_3-CeO_2 oxide powders for plasma deposition of heat resistant thermo-barrier coatings

摘要

A study of the synthesis conditions of ZrO_2-Y_2O_3-CeO_2 powders with a controlled granulometric composition was performed. As a result, it was found that the optimal conditions for co-precipitation of zirconium, yttrium and cerium hydroxides to obtain ZrO_2-3 % CeO_2-17 % Y_2O_3 powders with the target fraction of 50-100 μm were the following: ammonia concentration of 13 mol/l, total metal concentration (Zr, Y, Ce) of 0.5 mol/l.