Synthesis of AI<sub>2</sub>O<sub>3</sub>-Y<sub>2</sub>O<sub>3</sub> Powders from Suspensions with a Spray Drying Technique
This work shows the possibility of obtaining AI2O3-Y2O3 powders synthesized by nano spray drying. The different methods like thermogravimetry, differential scanning calorimetry, X-ray analysis, BET and scanning electron microscopy were used to investigate the obtained powders. The processes of linear shrinkage of samples during thermal and compression consolidation were studied with the use of spark plasma sintering technology. A comparative analysis of powders obtained with the use nanospray drying technique and reverse co-precipitation deposition was carried out. The results showed that the powder with content of 96 vol.% Y3AI5O12 can be obtained by nanospray drying technique by calcining the precursor at a temperature of 1100 °C for 10 minutes. Contribution of the authors: the authors contributed equally to this article. The authors declare no conflicts of interests.