Effect of Nb, Li doping on structure and piezoelectric properties of PZT type ceramics

Tănăsoiu, C.; Dimitriu, E.; Miclea, C.

doi:10.1016/s0955-2219(98)00401-4

Cited by 33 publications

(14 citation statements)

References 14 publications

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“…According to the previous references, Nb 2 O 5 is a good donor dopant for PZT-based ceramics, which will increase the mobility of the domain walls. 28 The defect chemistry reaction is supposed to take place via the following equations, which reduce the concentration of oxygen vacancy, which is the main factor for pinning the mobility of domain walls. 29 Nb 2 O 5 + VÖ 2TiO 2 −→ 2Nb Ti + 5O O High values of piezoelectric coefficient d 33 and electromechanical coupling coefficient k p in poled PZT-based ceramics are believed to arise from the motion of domain walls under the action of applied field or stress.…”

Section: Discussing Of Resultsmentioning

confidence: 99%

Property improvement of 0.3Pb(Zn1/3Nb2/3)O3-0.7Pb0.96La0.04(ZrxTi1−x)0.99O3 ceramics by hot-pressing

Deng

Ding

Zheng

et al. 2006

Journal of the European Ceramic Society

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Section: Discussing Of Resultsmentioning

confidence: 99%

Property improvement of 0.3Pb(Zn1/3Nb2/3)O3-0.7Pb0.96La0.04(ZrxTi1−x)0.99O3 ceramics by hot-pressing

Deng

Ding

Zheng

et al. 2006

Journal of the European Ceramic Society

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“…The application of piezoelectric materials is almost unlimited and depends only on the skill of the users. It is sufficient to mention the newest and most exciting applications of such ceramics, in piezoelectric micromotors, microrobots, actuators, and the control of displacement and positioning systems, to understand the importance of piezoelectric materials with improved characteristics (Tănăsoiu, Dimitriu, & Miclea, 1999). Researchers also claim that relax or ferroelectrics with AB (1−x) B x O 3 type perovskite has attracted much attention because of their excellent dielectric and electromechanical properties.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Sintering Conditions on the Microstructure and Electrical Properties of Pb(Zr0.52Ti0.48)O3 Ceramic

Azhar¹,

Sharif²,

J.³

et al. 2014

J MECH ENG SCI

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Lead zirconatetitanate Pb(Zr 0.52 Ti 0.48 )O 3 , (PZT) from a mixture of commercial PbO, TiO 2 and ZrO 2 powders was successfully prepared using a planetary ball mill. The microstructure and electrical properties of PZT ceramic were found to be highly sensitive to the sintering condition. The influence of microstructure and electrical properties on the sintering condition of the samples was studied. SEM analysis indicated that a shorter sintering time with higher sintering temperature promotes fine structure and densification. This was proves where the relative density of the sintered PZT ceramics obtained was measured to be approximately 99% of the theoretical density. The electrical properties of the ceramic sintered at a higher temperature with a different sintering time were measured at high frequencies. The result revealed that different sintering conditions have a big impact on electrical behavior in a broad frequency region.

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“…[2,5,6]. In the case of Nb-doped PZT materials, it has been stated that substitution of a small amount of Nb 5+ for (Zr,Ti) 4+ increases considerably the bulk resistivity and reduces aging effects, among various effects of relevance [3,[7][8][9][10]. Most electrical characterizations of this Nb-doped PZT system have been, however, conducted mainly on thin films and/or over a restricted range of PZT compositions: the MPB region and the range of Zr-rich PZT compositions (z = 0.03-0.04), the latter falling within the antiferroelectric region of the diagram phase.…”

Section: Introductionmentioning

confidence: 99%

Electrical Properties of Nb-Doped PZT 65/35 Ceramics: Influence of Nb and Excess PbO

et al. 2005

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The effect of Nb and excess PbO on the structural and electrical properties of conventionally prepared Nb-doped PZT 65/35 ceramics has been studied in this work. It is found that, from excess PbO contents as high as 4 mol%, the solubility limit of Nb in PZT occurs below 4 mol%, while a secondary prevoskite-like phase develops in the dielectric system for a further increase of Nb content. The ferroelectric and piezoelectric properties (permittivity, ferro-paraelectric phase transition, polarization, electromechanical coefficients) of such materials are thus found to be strongly dependent on the degree of densification and structural phase development during sintering at high temperatures. In particular, the nature of the ferro-to para-electric phase transition is in these materials noted to better fit a generalized rather than Smolenskii-Isupov equation, the former being appropriate for the characterization of non-purely diffuse transitions. In nice agreement with the Bokov model, substitution of Nb 5+ for (Zr,Ti) 4+ is found to induce only poorly diffuse phase transition in these materials. The electrical properties reported in this work are in magnitude comparable to those exhibited by PZT-based materials.

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Effect of Nb, Li doping on structure and piezoelectric properties of PZT type ceramics

Cited by 33 publications

References 14 publications

Property improvement of 0.3Pb(Zn1/3Nb2/3)O3-0.7Pb0.96La0.04(ZrxTi1−x)0.99O3 ceramics by hot-pressing

Property improvement of 0.3Pb(Zn1/3Nb2/3)O3-0.7Pb0.96La0.04(ZrxTi1−x)0.99O3 ceramics by hot-pressing

The Effect of Sintering Conditions on the Microstructure and Electrical Properties of Pb(Zr0.52Ti0.48)O3 Ceramic

Electrical Properties of Nb-Doped PZT 65/35 Ceramics: Influence of Nb and Excess PbO

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