Dielectric and piezoelectric properties of the mechanochemically prepared PZT ceramics
Abstract
Mechanochemical synthesis was applied to obtain nanocrystalline powders of composition Pb(Zr0.52Ti0.48)O-3 (PZT). Milling was performed in a planetary ball mill using vials and balls made of zirconia or steel-in order to investigate influence of milling media on the electrical properties of resulting ceramics. PZT ceramics showed high values for dielectric constant (epsilon(r)), reaching 970 at room temperature, as well as low dielectric loss (tandelta) under the optimal processing conditions. High values of remanent polarization (P-r) indicate high internal polarizability. The best samples showed piezoelectric strain constant d(33) = 347 pC/N and planar coupling factor k(P) = 0.44. Milling in ZrO2 medium prevents powder contamination and provides reproducibility of milling process. Also, PZT obtained from the powders milled in ZrO2 exhibited lower values of dielectric loss, in comparison with the PTZ obtained from the powders milled in Fe. This suggests that contamination of the powde...r with Fe could result in an increase of conductivity in final product.
Keywords:
piezoelectric properties / PZT / mechanochemistrySource:
Journal of Materials Science, 2004, 39, 16-17, 5291-5294Publisher:
- Springer, New York
DOI: 10.1023/B:JMSC.0000039231.74493.86
ISSN: 0022-2461
WoS: 000224675800059
Scopus: 2-s2.0-4444233991
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Institution/Community
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Branković, Zorica AU - Branković, Goran AU - Moura, F AU - Varela, JA PY - 2004 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/94 AB - Mechanochemical synthesis was applied to obtain nanocrystalline powders of composition Pb(Zr0.52Ti0.48)O-3 (PZT). Milling was performed in a planetary ball mill using vials and balls made of zirconia or steel-in order to investigate influence of milling media on the electrical properties of resulting ceramics. PZT ceramics showed high values for dielectric constant (epsilon(r)), reaching 970 at room temperature, as well as low dielectric loss (tandelta) under the optimal processing conditions. High values of remanent polarization (P-r) indicate high internal polarizability. The best samples showed piezoelectric strain constant d(33) = 347 pC/N and planar coupling factor k(P) = 0.44. Milling in ZrO2 medium prevents powder contamination and provides reproducibility of milling process. Also, PZT obtained from the powders milled in ZrO2 exhibited lower values of dielectric loss, in comparison with the PTZ obtained from the powders milled in Fe. This suggests that contamination of the powder with Fe could result in an increase of conductivity in final product. PB - Springer, New York T2 - Journal of Materials Science T1 - Dielectric and piezoelectric properties of the mechanochemically prepared PZT ceramics EP - 5294 IS - 16-17 SP - 5291 VL - 39 DO - 10.1023/B:JMSC.0000039231.74493.86 ER -
@article{ author = "Branković, Zorica and Branković, Goran and Moura, F and Varela, JA", year = "2004", abstract = "Mechanochemical synthesis was applied to obtain nanocrystalline powders of composition Pb(Zr0.52Ti0.48)O-3 (PZT). Milling was performed in a planetary ball mill using vials and balls made of zirconia or steel-in order to investigate influence of milling media on the electrical properties of resulting ceramics. PZT ceramics showed high values for dielectric constant (epsilon(r)), reaching 970 at room temperature, as well as low dielectric loss (tandelta) under the optimal processing conditions. High values of remanent polarization (P-r) indicate high internal polarizability. The best samples showed piezoelectric strain constant d(33) = 347 pC/N and planar coupling factor k(P) = 0.44. Milling in ZrO2 medium prevents powder contamination and provides reproducibility of milling process. Also, PZT obtained from the powders milled in ZrO2 exhibited lower values of dielectric loss, in comparison with the PTZ obtained from the powders milled in Fe. This suggests that contamination of the powder with Fe could result in an increase of conductivity in final product.", publisher = "Springer, New York", journal = "Journal of Materials Science", title = "Dielectric and piezoelectric properties of the mechanochemically prepared PZT ceramics", pages = "5294-5291", number = "16-17", volume = "39", doi = "10.1023/B:JMSC.0000039231.74493.86" }
Branković, Z., Branković, G., Moura, F.,& Varela, J.. (2004). Dielectric and piezoelectric properties of the mechanochemically prepared PZT ceramics. in Journal of Materials Science Springer, New York., 39(16-17), 5291-5294. https://doi.org/10.1023/B:JMSC.0000039231.74493.86
Branković Z, Branković G, Moura F, Varela J. Dielectric and piezoelectric properties of the mechanochemically prepared PZT ceramics. in Journal of Materials Science. 2004;39(16-17):5291-5294. doi:10.1023/B:JMSC.0000039231.74493.86 .
Branković, Zorica, Branković, Goran, Moura, F, Varela, JA, "Dielectric and piezoelectric properties of the mechanochemically prepared PZT ceramics" in Journal of Materials Science, 39, no. 16-17 (2004):5291-5294, https://doi.org/10.1023/B:JMSC.0000039231.74493.86 . .