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DOI

RE tungstates Ln14W4O33 ( Ln = Nd, Sm, Gd) with a pseudorhombohedral structure were synthesized in the Ln2O3-WO3 systems, using the method of mechanical activation and subsequent high-temperature annealing at 1450-1600 degrees C for 4h. It was found that these compounds have oxygen-ion conductivity. Nd14W4O33 demonstrates the maximum of oxygen-ion conductivity (4 x 10(-4) S / cm at 700 degrees C). The dependence of the total conductivity on the oxygen partial pressure was investigated for Sm14W4O33. It was shown the range of pure oxygen-ion conductivity at 700 degrees. is 10(-17) - 0.21 atm. The conductivity of the samples decreases after prolonged their exposure in water at room temperature due to the diffusion of Ln cations into water.
Original languageEnglish
Title of host publication2021 IEEE INTERNATIONAL SYMPOSIUM ON APPLICATIONS OF FERROELECTRICS (IEEE ISAF 2021) / INTERNATIONAL SYMPOSIUM ON INTEGRATED FUNCTIONALITIES (ISIF) / PIEZORESPONSE FORCE MICROSCOPY WORKSHOP (PFM)
Subtitle of host publicationbook
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-2
ISBN (Print)978-1-6654-0444-0
DOIs
Publication statusPublished - 16 May 2021
Event2021 IEEE International Symposium on Applications of Ferroelectrics (ISAF) - Sydney, Australia
Duration: 16 May 2021 → 21 May 2021

Publication series

NameIEEE International Symposium on Applications of Ferroelectrics
PublisherIEEE
ISSN (Print)1099-4734

Conference

Conference2021 IEEE International Symposium on Applications of Ferroelectrics (ISAF)
Period16/05/2021 → 21/05/2021

    WoS ResearchAreas Categories

  • Engineering, Electrical & Electronic
  • Materials Science, Multidisciplinary
  • Physics, Applied

ID: 51471583