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Research Article | Open Access

Sinterability of nanopowders of terbia solid solutions with scandia, yttria, and lutetia

Stanislav S. BALABANOVa( )Dmitry А. PERMINaElena Ye. ROSTOKINAaSergey V. EGOROVbAndrey A. SOROKINb
G.G. Devyatykh Institute of Chemistry of High-Purity Substances RAS, Nizhny Novgorod, Russia
Federal Research Center, the Institute of Applied Physics RAS, Nizhny Novgorod, Russia
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Abstract

The synthesis of nanopowders of terbia compounds with scandia, yttria, and lutetia was carried out using a self-propagating high-temperature synthesis method involving a mixture of nitrates of metals and glycine as a precursor. The nanopowder phase transformations were investigated using X-ray diffraction analysis. It was found that lutetia has a negligible effect on the phase formation in terbia. On the other hand, yttrium and scandium ions significantly suppressed crystallization. The densification kinetics of nanopowders of the Tb2O3 compounds and the microstructure of ceramics after microwave sintering were studied using dilatometry and scanning electron microscopy. The introduction of scandia, yttria, or lutetia contributed to the intensification of the densification of the terbia ceramics when heated in a microwave field. Near full-density materials of terbia solid solutions with lutetia and yttria were obtained at about 1600–1640 ℃. The ceramics of scandia–terbia compounds contained the second phase, which causes light scattering.

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Journal of Advanced Ceramics
Pages 362-369
Cite this article:
BALABANOV SS, PERMIN DА, ROSTOKINA EY, et al. Sinterability of nanopowders of terbia solid solutions with scandia, yttria, and lutetia. Journal of Advanced Ceramics, 2018, 7(4): 362-369. https://doi.org/10.1007/s40145-018-0286-0

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Received: 08 February 2018
Revised: 07 June 2018
Accepted: 19 June 2018
Published: 18 December 2018
© The author(s) 2018

Open Access The articles published in this journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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