Dielectric properties of the (Nb 1 − xTa x) 2O 5 solid solution

Nb 2O 5 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 (Nb 1 − xTa x) 2O 5, 0.0 ≤ x ≤ 0.25, in the frequency range 1kHz–3MHz, in the vicinity of ambient...

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Bibliographic Details
Published inMaterials research bulletin Vol. 31; no. 3; pp. 295 - 299
Main Authors Cava, R.J., Peck, W.F., Krajewski, J.J., Roberts, G.L.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 1996
Subjects
A. ceramics
A. oxides
D. dielectric properties
D. ferroelectricity
D. ferroelectricity
A. oxides
D. dielectric properties
A. ceramics
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Summary:Nb 2O 5 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 (Nb 1 − xTa x) 2O 5, 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.
ISSN:0025-5408
1873-4227
DOI:10.1016/0025-5408(96)00002-5