Synthesis of nanopowders of pentoxides Ta2y Nb2(1−y)O5

Synthesis of nanopowders of pentoxides Ta2y Nb2(1−y)O5 The processes of production of high purity nanopowders of niobium and tantalum pentoxide Ta2y Nb2(1–y)O5 with a low content of fluorine and Nb2O5 in low-temperature polymorph were studied. Ceramic samples were prepared from a charge of solid solutions LiTa y Nb1–y O3 and Li x Na1–x Ta y Nb1–y O3 synthesized using coprecipitated pentoxide Ta2y Nb2(1–y)O5. Therewith for solid solutions LixNa1–x Ta y Nb1–y O3 significantly larger values of high dielectric constant and ionic conductivity were achieved compared to the solid solutions obtained by using a mechanical mixture of Ta2O5 and Nb2O5. This converts solid solutions LixNa1–x Ta y Nb1–y O3 from acoustoelectronic and piezoelectric type of materials into the capacitor and ion-conductive type of solid materials. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Synthesis of nanopowders of pentoxides Ta2y Nb2(1−y)O5

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2013 by Pleiades Publishing, Ltd.
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S1070427213040071
Publisher site
See Article on Publisher Site

Abstract

The processes of production of high purity nanopowders of niobium and tantalum pentoxide Ta2y Nb2(1–y)O5 with a low content of fluorine and Nb2O5 in low-temperature polymorph were studied. Ceramic samples were prepared from a charge of solid solutions LiTa y Nb1–y O3 and Li x Na1–x Ta y Nb1–y O3 synthesized using coprecipitated pentoxide Ta2y Nb2(1–y)O5. Therewith for solid solutions LixNa1–x Ta y Nb1–y O3 significantly larger values of high dielectric constant and ionic conductivity were achieved compared to the solid solutions obtained by using a mechanical mixture of Ta2O5 and Nb2O5. This converts solid solutions LixNa1–x Ta y Nb1–y O3 from acoustoelectronic and piezoelectric type of materials into the capacitor and ion-conductive type of solid materials.

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: May 23, 2013

References

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