In-situ X-ray diffraction study of stress-induced phase transition of (1 − x)BaZr0.2Ti0.8O3–xBa0.7Ca0.3TiO3 in polymer matrix composite

Wang, W.; Li, W.L.; Feng, Yu; Hou, Yafei; Xu, Dan; Wang, M.; Fei, W.D.

doi:10.1016/j.matchemphys.2014.03.049

Cited by 4 publications

(6 citation statements)

References 26 publications

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“…32 The large d 33 value of BZT-0.5BZT/ZO 3step sample could also lead to the domain patterns remnant polarization. And in that case, we suggest the domain reorientation of T phase domain 5,28 is the main reason that the BZT-0.5BCT/ZO 3step sample has the largest d 33 value. In addition, from the normalized XRD in Fig.…”

Section: Resultsmentioning

confidence: 77%

“…5,31 And in that condition, the O-T phase transition and reorientation of T phase domain are becoming easier for BZT-0.5BCT, lead to a large d 33 value. 1,24,28,31 As shown in Fig. 5a, the d 33 value of BZT-0.5BCT/ZO 2step is the lowest among the three ceramics.…”

Section: Resultsmentioning

confidence: 78%

“…And the tensile stress is conducive to the formation of T phase for BZT-0.5BCT ceramics. 28 Otherwise, the grain size could also influence the domain structure of BZT-0.5BCT ceramics, and this kind of effect has also been reported in BaTiO 3 based ceramics. 29,30 Piezoelectric properties.-The d 33 value versus process curve is shown in Fig.…”

Section: Resultsmentioning

confidence: 88%

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Enhanced Piezoelectric Properties and Temperature Stability of 0.5BZT-0.5BCT Ceramic Induced by Using Three-Step Synthesizing Method

Wang

Sun

et al. 2019

ECS J. Solid State Sci. Technol.

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BaZr 0.2 Ti 0.8 O 3 -xBa 0.7 Ca 0.3 TiO 3 (BZT-xBCT) system is a lead-free piezoelectric material with excellent piezoelectric response. But the temperature instability has seriously restricted the application of this system. In this work, the influence of precursor and synthesizing method on the piezoelectric temperature stability has been studied. And the results show that the piezoelectric temperature stability could be substantially improved by using suitable precursor and synthesizing method. The BZT-0.5BCT ceramic synthesized by using three-step synthesizing method has a huge piezoelectric constant (d 33 = 668 pC/N) and meanwhile has a good temperature stability. The SEM and XRD analysis show that the excellent piezoelectric properties are related to ceramic grain size and phase structure. Moreover, our result provides a simple and efficient method to improve the piezoelectric properties of the BZT-0.5BCT system and could accelerate application process of the ceramics.

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Section: Resultsmentioning

confidence: 77%

Section: Resultsmentioning

confidence: 78%

See 1 more Smart Citation

Enhanced Piezoelectric Properties and Temperature Stability of 0.5BZT-0.5BCT Ceramic Induced by Using Three-Step Synthesizing Method

Wang

Sun

et al. 2019

ECS J. Solid State Sci. Technol.

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“…The CTE of SBT can reach as low as −150 × 10 −6 K −1 when the ferroelectric–paraelectric (tetragonal–cubic) phase transformation takes place222324. On the one hand, the Curie temperature ( T C ) of SBT is in the range of approximately 20 to 400 K, which can be precisely controlled by adjusting the Sr content22, suggesting that we can obtain large negative CTE in a temperature range near room temperature by using SBT powders with different Sr contents.…”

mentioning

confidence: 99%

“…Consequently, the dependence of the CTE of the SBT/Cu composite on the temperature can be designed by the Sr content. On the other hand, the Curie temperature of SBT is very sensitive to the stress23, and a thermal mismatch stress is an intrinsic feature of MMCs25. Therefore, a wide temperature range is expected for phase transformation owing to the non-uniform stress acting on the SBT particles with different sizes and shapes in the SBT/Cu composite.…”

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confidence: 99%

Phase-Transformation-Induced Extra Thermal Expansion Behavior of (SrxBa1–x)TiO3/Cu Composite

Sheng

Wang

et al. 2016

Sci Rep

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The properties of metal matrix composites (MMCs) can be optimized effectively through adjusting the type or the volume fraction of reinforcement. Generally, the coefficient of thermal expansion (CTE) of MMCs can be reduced by increasing the volume fraction of the reinforcement with lower CTE than metal matrix. However, it is great challenge to fabricate low CTE MMCs with low reinforcement volume fraction because of the limitation of reinforcement CTEs. SrxBa1−xTiO3 (SBT) powder presents negative thermal expansion behavior during the phase transformation from tetragonal to cubic phase. Here, we demonstrate that the phase transformation of SBT can be utilized to reduce and design the thermal expansion properties of SBT particle-reinforced Cu (SBT/Cu) composite, and ultralow CTE can be obtained in SBT/Cu composite. The X-ray diffraction analysis on heating indicates that the temperature range of phase transformation is extended greatly, therefore, the low CTE can be achieved within wide temperature range. Landau-Devonshire theory study on the phase transformation behaviors of SBT particles in the composite indicates that thermal mismatch stress significantly affects the Curie temperature of SBT particles and the CTE of the composite. The results given in the present study provide a new approach to design the MMCs with low CTE.

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In-situ X-ray diffraction study of stress-induced phase transition of (1 − x)BaZr0.2Ti0.8O3–xBa0.7Ca0.3TiO3 in polymer matrix composite

Cited by 4 publications

References 26 publications

Enhanced Piezoelectric Properties and Temperature Stability of 0.5BZT-0.5BCT Ceramic Induced by Using Three-Step Synthesizing Method

Enhanced Piezoelectric Properties and Temperature Stability of 0.5BZT-0.5BCT Ceramic Induced by Using Three-Step Synthesizing Method

Phase-Transformation-Induced Extra Thermal Expansion Behavior of (SrxBa1–x)TiO3/Cu Composite

Effect of pore content on diffuse phase transition behaviour of porous 0.5BaZr0.2Ti0.8O3–0.5Ba0.7Ca0.3TiO3 ceramics

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