Effects of Sintering Temperature on the Dielectric and Piezoelectric Properties of Nb-Doped PZT Ceramics and Their Applications

Chu, Sheng−Yuan; Chen, Te-Yi; Tsai, I-Ta

doi:10.1080/10584580390259498

Cited by 25 publications

(5 citation statements)

References 17 publications

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“…The density value was de- creased with increasing temperature in the range of 1250-1300°C. Earlier reports also observed very similar trend [17,18]. Thus, these samples were therefore excluded from further investigation.…”

Section: Resultsmentioning

confidence: 92%

Temperature dependence on structure, mechanical and electrical properties of bismuth lanthanum sodium titanate-modified lead zirconate titanate ceramics

Jaita¹,

Jarupoom²

2020

ScienceAsia

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The effects of sintering condition on phase evolution, physical, microstructure and dielectric properties of the PZT-3BLNT ceramics were investigated. The samples were prepared by a conventional mixed oxide method and sintered at the temperatures ranging from 1050-1200°C under normal atmosphere for 2 h dwell time with a heating/cooling rate of 5°C/min. X-ray diffraction indicated that the mixed rhombohedral-tetragonal phases were observed at lower sintering temperature of 1050°C, while the tetragonal phase became dominant at higher sintering temperature (1200°C). The optimum sintering temperature for preparation of high-density PZT-3BLNT ceramic was found to be 1200°C. Linear shrinkage and average grain size tended to increase with increasing the sintering temperature. The effects of annealing conditions on mechanical and dielectric properties of the PZT-3BLNT ceramic sintered at 1200°C were also studied in this work. It was found that the maximum room temperature dielectric constant ( r ) of 1313 and Vickers hardness (H V ) of 4.38 GPa were achieved for the sample annealed at 950°C for 8 h dwell time and this value was ∼18-20% higher than that of the unannealed sample. This result was also well correlated with the maximum relative density observed for this annealing condition.

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Section: Resultsmentioning

confidence: 92%

Temperature dependence on structure, mechanical and electrical properties of bismuth lanthanum sodium titanate-modified lead zirconate titanate ceramics

Jaita¹,

Jarupoom²

2020

ScienceAsia

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“…We obtained piezoelectric active elements in different shapes required by the application. In the elaboration process we used advanced milling technique to obtain fine-grained powders [6], and we sintered the compositions at different temperatures to obtain high density of active elements. To obtain the active elements we started from the chemical composition described by the general formula: Pb(Zr 0.52 Ti 0.48 ) 1-x Nb x O 3 with x=0.024, encoded PZTN.…”

Section: A a Piezoelectric Transducers System Like As Energy Sourcesmentioning

confidence: 99%

New energy harvesting systems, designed for new piezoelectric transducers, with charging energy management

Pîslaru‐Dănescu

Lipan

Pisică

et al. 2014

2014 International Conference and Exposition on Electrical and Power Engineering (EPE)

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New developments in ultralow power electronic devices can now use much solution to energy harvesting systems designed to interface directly with a piezoelectric transducer. However, these environmental energy sources are typically very low power. Recently, a significant number of piezoelectric devices based on lead titanate zirconate (PZTN) have been designed with the purpose of the piezoelectric transducer. At INCDIE ICPE-CA Bucharest we have realized a piezoelectric transducer for which a PZT+Nb piezoelectric ceramic element was used for low energy source build with piezoelectric circular and linear transducers. Due to their dielectric proprieties and small size, (38 mm x 14 mm x 2 mm), the piezoelectric linear transducers can be optimize the energy harvesting systems applications for which the vibration duration is very short. A multiphysics numerical simulation further illustrates such piezoelectric transducer operation. The energy harvesting system is constituted of five functional blocks which are described in this paper.

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“…As reported, Nb doping can compensate for the vacancy at the B site for ABO 3 -type perovskites caused by La doping. Nb-doping also has been proven to contribute to the improvement of piezoelectric responses and fatigue behavior, then the decrease in the coercive field [ 14 , 15 ]. In addition, Nb oxide is helpful to densify the Pb(Zr 1−x Ti x )O 3 (abbreviated as PZT)-based piezoceramics and decrease the sintering temperature slightly [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric Response and Cycling Fatigue Resistance of Low-Temperature Sintered PZT-Based Ceramics

et al. 2023

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The preparation of low-cost multilayer piezoelectric devices requires using cheap internal electrodes between the dielectric layers. A general strategy is to reduce the sintering temperature Ts of the ceramic layer by sintering aids which can form a liquid phase. Here, 0.2 wt% Li2CO3 was added as a sintering aid to tailor the sinterability and piezoelectricity of the commercial PZT ceramics. As verified from experiments, the piezoelectric ceramics could be densified at a sintering temperature above 940 °C, suitable for co-firing with the cheap internal electrode. The optimized sintering temperature of 980 °C can be confirmed for the 0.2 wt% Li2CO3-modified PZT ceramics due to its high piezoelectric coefficient d33 ~ 701 pC/N, planar coupling factor kp ~ 66.7%, and a low mechanical quality factor Qm ~ 71 with a transition temperature of Tc ~ 226 °C, presenting the characteristics of typical soft piezoelectric ceramics. Moreover, both the potential piezoelectric strain ~0.13% under 20 kV/cm and the good cycling fatigue characteristic (>104 cycles) of the studied piezo compositions indicates strong competitiveness in the field of multilayer piezoelectric devices.

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Effects of Sintering Temperature on the Dielectric and Piezoelectric Properties of Nb-Doped PZT Ceramics and Their Applications

Cited by 25 publications

References 17 publications

Temperature dependence on structure, mechanical and electrical properties of bismuth lanthanum sodium titanate-modified lead zirconate titanate ceramics

Temperature dependence on structure, mechanical and electrical properties of bismuth lanthanum sodium titanate-modified lead zirconate titanate ceramics

New energy harvesting systems, designed for new piezoelectric transducers, with charging energy management

Piezoelectric Response and Cycling Fatigue Resistance of Low-Temperature Sintered PZT-Based Ceramics

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