Dielectric properties of the (Nb1-xTax)2O5 solid solution

R. J. Cava, W. F. Peck, J. J. Krajewski, G. L. Roberts

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


Nb2O5 in the high niobia structure type can accommodate approximately 25% partial substitution of Ta for Nb in a solid solution. Here we report the dielectric properties of polycrystalline ceramics of (Nb1-xTax)2O5, 0.0 ≤ x ≤ 0.25, in the frequency range 1kHz-3MHz, in the vicinity of ambient temperature. The substitution of even small quantities of Ta for Nb greatly enhances the dielectric constants, reaching a maximum of approximately 180 at ambient temperature for x = 0.15.

Original languageEnglish (US)
Pages (from-to)295-299
Number of pages5
JournalMaterials Research Bulletin
Issue number3
StatePublished - Mar 1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


  • A. ceramics
  • A. oxides
  • D. dielectric properties
  • D. ferroelectricity


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