[Sans titre]
| hal.structure.identifier | Institute of Chemistry | |
| dc.contributor.author | TAÏBI-BENZIADAA, Laldja | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | SIMON, Annie | |
| dc.date.issued | 2009 | |
| dc.identifier.issn | 1895-1066 | |
| dc.description.abstractEn | Various compositions (1-x)BaTiO<sub>3</sub> + xPbF2+ xLiF were prepared, shaped to pellets then sintered at 900°C for 2 h in gold sealed tubes. The purity and the symmetry of the obtained samples were checked by X-ray diffraction. A new solid solution with Ba<sub>1-x</sub> Pb<sub>x</sub>(Ti<sub>1-x</sub>Li<sub>x</sub>) O<sub>3-3x</sub> F<sub>3x</sub> formula occurs in the composition range 0 ≥ x ≥ 0.20. SEM observations were performed on polished and fractured ceramics. The complex permittivity was measured as a function of temperature (-120°C ≥ T ≥ 250°C) and frequency (50 Hz ≥ f ≥ 4 × 10<sup>7</sup> Hz). The dielectric performances are the best for ceramic Ba<sub>0.97</sub>Pb<sub>0.03</sub>(Ti<sub>0.97</sub> Li<sub>0.03</sub>)O<sub>2.91</sub>F<sub>0.09</sub>. The real component ε'<sub>r</sub>, exhibits a maximum of approximately 7500 at the ferroelectric Curie temperature T<sub>C</sub> ≈ -18°C, the dielectric losses tan δ value being 0.012. At room temperature, the relaxation frequency f<sub>r</sub> is around 40 MHz for this ceramic. This novel ferroelectric oxifluoride is a promising material for applications, in particular in the field of Z5U multilayer capacitors. | |
| dc.language.iso | en | |
| dc.publisher | Springer Verlag | |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/ | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.2478/s11532-008-0063-y | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Central European Journal of Chemistry | |
| bordeaux.page | 159-163 | |
| bordeaux.volume | 7 | |
| bordeaux.issue | 2 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00382794 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00382794v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Central%20European%20Journal%20of%20Chemistry&rft.date=2009&rft.volume=7&rft.issue=2&rft.spage=159-163&rft.epage=159-163&rft.eissn=1895-1066&rft.issn=1895-1066&rft.au=TA%C3%8FBI-BENZIADAA,%20Laldja&SIMON,%20Annie&rft.genre=article |
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