Synthesis of Yttria Nanopowders by Two Precipitation Methods and Investigation of Synthesis Conditions

Yttrium oxide nanopowder was successfully synthesized by two precipitation methods, through which Y2O3 nanopowder was prepared by ammonium hydroxide and ammonium hydrogen carbonate as precipitants. Hydroxide and carbonate precursors of Y2O3 with approximate composition of Y(OH)3 and Y2(CO3)3, respec...

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Bibliographic Details
Published in:International journal of applied ceramic technology 2016-01, Vol.13 (1), p.209-218
Main Authors: Khajelakzay, Mohammad, Shoja Razavi, Reza, Barekat, Masoud, Naderi, Mahdi, Milani, Mostafa
Format: Article
Language:English
Subjects:
Annealing
Carbonates
Hydrogen
Nanoparticles
Nanostructure
Synthesis
Yttrium
Yttrium oxide
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Summary:Yttrium oxide nanopowder was successfully synthesized by two precipitation methods, through which Y2O3 nanopowder was prepared by ammonium hydroxide and ammonium hydrogen carbonate as precipitants. Hydroxide and carbonate precursors of Y2O3 with approximate composition of Y(OH)3 and Y2(CO3)3, respectively, were synthesized using yttrium nitrate as the starting salt. XRD results show cubic yttrium oxide phase for annealed samples. SEM and TEM images show that samples are composed of agglomerated and nonagglomerated nanoparticles with different shapes and sizes. Optimal conditions for synthesis of nanoparticles were defined as 3‐h aging time, ammonium hydrogen carbonate as precipitant, and calcination temperature of 1000°C.
ISSN:1546-542X
1744-7402
DOI:10.1111/ijac.12430