DC pole | Wartość | Język |
dc.contributor.author | Bąk, W. | - |
dc.contributor.author | Starzyk, F. | - |
dc.contributor.author | Kajtoch, C. | - |
dc.contributor.author | Nogas-Ćwikiel, Ewa | - |
dc.date.accessioned | 2021-02-05T10:50:24Z | - |
dc.date.available | 2021-02-05T10:50:24Z | - |
dc.date.issued | 2008 | - |
dc.identifier.citation | Archives of Materials Science and Engineering, Vol. 29, iss. 1 (2008), s. 5-9 | pl_PL |
dc.identifier.issn | 1897-2764 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12128/18834 | - |
dc.description.abstract | Purpose: of this paper was to investigate features of the dispersion of dielectric permittivity induced by elevated
temperature (473K-723K) in polycrystalline solid solution of Ba1-xNaxTi1-xNbxO3 (for x=0.3 and x=0.4).
Design/methodology/approach: used to perform this purpose was dielectric spectroscopy application to
measure dielectric and electric parameters within the frequency range (20Hz-1MHz).
Findings: Analysis of temperature and frequency dependences of real (ε’) and imaginary (ε”) parts of dielectric
permittivity had pointed out on relaxor type of dielectric behaviour for both investigated samples in paraelectric
phase. The thermal activation energy values of ac conductivity (for 100Hz) are similar to those of semiconductors.
Values of ε’ for both materials (x=0.3, x=0.4) are consistent with literature quotations. Thus the polarisation
behaviour of our materials seems to be similar to those described in the literature. Different behaviour of dielectric
energy losses is postulated as originating from differences of samples microstructure.
Research limitations/implications: Further investigations should be carried out in the range of low
temperatures (down to 100K) and within a broaden frequency range (up to 1.8GHz) in order to establish the
influence of chemical structure on ferroelectric-paraelectric phase transition.
Originality/value: Dielectric properties for two new material prepared from nanopowders of BaTiO3 and
NaNbO3 were described. | pl_PL |
dc.language.iso | en | pl_PL |
dc.rights | Uznanie autorstwa-Użycie niekomercyjne-Bez utworów zależnych 3.0 Polska | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/pl/ | * |
dc.subject | Ceramics | pl_PL |
dc.subject | Relaxor | pl_PL |
dc.subject | Electrical properties | pl_PL |
dc.subject | Dielectric Relaxation Spectroscopy | pl_PL |
dc.title | Elevated temperature induced dispersion phenomena in Ba1-xNaxTi1-xNbxO3 | pl_PL |
dc.type | info:eu-repo/semantics/article | pl_PL |
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