Abstract
Zirconium oxide-based powders with different concentrations of REE concentrate (La, Nd, Pr) in an amount from 25 to 35 mol.% were synthesized by the reverse chemical precipitation method. The formation of REE zirconates during consolidation has been studied by Raman spectroscopy, XRD and scanning electron microscopy. It has been established that the formation of REE zirconates with the pyrochlore structure occurs after annealing of synthesised powders at a temperature of 1000°C. It has been demonstrated that densifying processes during sintering at 1400 –1600°C occur most slowly in a ceramic material with 35 mol.% REE oxides, which has a stable phase composition at all sintering temperatures, consisting mainly of REE zirconates with the pyrochlore structure. The resulting ceramic material based on REE zirconates has phase stability at 1300°C.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
