Effect of Y3+ and Nb5+ co-doping on dielectric and piezoelectric properties of PZT ceramicsn

• Autorzy: Zak A. K. , Jalalian A. , Hosseini S. M. , Kompany A. , Shekofteh Narm T.
• Języki publikacji: EN

Abstrakty

EN

The effect of co-doping of Pb1-xYx[(Zr0.53Ti0.47)1-xNbx]O3 bulk materials (0 ? x ? 0.03) with Y3+ ions and Nb5+ on their dielectric and piezoelectric properties o was investigated. Samples fabricated by conventional oxide mixing (OM) were sintered at 1250 °C for 2 h in a Pb-rich atmosphere. During the tetragonal-rhombohedral transition in the doped PZT ceramics a negligible effect was observed after additions of Y3+ and Nb5+ ions. The co-doping with both ions was noted to inhibit grain growth and promote densification and electrical properties. The optimal doping level was found to be at x = 0.015, for which the electric permittivity of 907, the piezoelectric constant of 323 pC/N, g33 of 40 mV/N, Qm of 272 and the electromechanical coupling factor (kp) of 0.49 were obtained.

Słowa kluczowe

EN

piezoelectric properties; PZT ceramics; dielectric properties

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2010
• Tom: Vol. 28, No. 3
• Strony: 703--708
• Opis fizyczny: Bibliogr. 20 poz.

Twórcy

autor

Zak A. K.

autor

Jalalian A.

autor

Hosseini S. M.

autor

Kompany A.

autor

Shekofteh Narm T.

• Department of Physics, Materials and Electroceramics Laboratory, Ferdowsi University of Mashhad, Mashhad, Iran

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