Energy-storage-efficient 0.9Pb(Mg1/3Nb2/3)O3–0.1PbTiO3 thick films integrated directly onto stainless steel

Sadl, Matej; Condurache, Oana; Benčan, Andreja; Dragomir, Mirela; Malič, Barbara; Deluca, Marco; Eckstein, Udo; Hausmann, Daniel; Khansur, Neamul H.; Webber, Kyle G.

doi:10.1016/j.actamat.2021.117403

Cited by 21 publications

(20 citation statements)

References 49 publications

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“…On the contrary, the almost constant hardness for the film before/after annealing indicates the dislocation activities are absent in these samples, and the plastic deformation is most likely mediated by grain boundary sliding as well as the plastic flow of the amorphous phases, 72 as will be discussed later. The hardness of ∼8 GPa was obtained in AD‐BT films before annealing, in good agreement with the previous reported value (∼5 GPa) for AD‐BT films in the literature 24 …”

Section: Resultssupporting

confidence: 92%

“…The hardness of ∼8 GPa was obtained in AD-BT films before annealing, in good agreement with the previous reported value (∼5 GPa) for AD-BT films in the literature. 24 To gain insight into microstructures of these samples after nanoindentation tests, we undertook topographic and PFM analysis of the sample surfaces. No apparent cracks around the residual impressions were found in topography images of AD-BT thick films before (Figure 6A) and after annealing (Figure 6C).…”

Section: Nanoindentation Testsmentioning

confidence: 99%

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Temperature‐induced changes of the electrical and mechanical properties of aerosol‐deposited BaTiO₃ thick films for energy storage applications

et al. 2022

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Aerosol deposition (AD) is a room‐temperature film deposition method for the fabrication of scalable ferroelectric ceramic films on different substrates, which is particularly appealing for thick film energy storage applications. However, the electrical and mechanical properties of AD ferroelectric films are not yet satisfactorily understood. Here, we report the dielectric, energy storage, and mechanical properties of aerosol‐deposited BaTiO3 (AD‐BT) thick films with nanosized grains by combining macroscopic electric measurements with indentation tests. We find that thermal annealing is an effective way to improve dielectric permittivity and polarization of the AD‐BT film, as well as to increase the hardness and Young's modulus of the film. However, crack formation in the annealed AD‐BT film is promoted in comparison to the as‐processed sample, suggesting that the interplay between the nanosized grains and release of the internal stress during annealing may have major consequences for the mechanical properties and hence should be taken into consideration in application.

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Section: Resultssupporting

confidence: 92%

Section: Nanoindentation Testsmentioning

confidence: 99%

Temperature‐induced changes of the electrical and mechanical properties of aerosol‐deposited BaTiO₃ thick films for energy storage applications

et al. 2022

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“…As we have seen in the SEM analysis (figures 1(e)-(j)), the microstructure is preserved after annealing the films. Therefore, one of the possible reasons for the changes in P-E behavior after annealing is related to stress relaxation, as previously shown for PMN-10PT thick films on SS [26]. Dielectric breakdown strength (DBS) was evaluated using Weibull analysis (supplementary material S5).…”

Section: Resultsmentioning

confidence: 99%

“…Diffraction patterns were recorded in the Bragg-Brentano geometry using a 100-channel X'Celerator detector in a 2θ range of 10 • -120 • with a step of 0.017 • and an integration time of 100 s per step. For the Rietveld refinement, the Topas R package (version 2.1, Bruker AXS GmbH, Germany) was employed as described elsewhere [26]. According to the literature, a tetragonal (P4mm) and a monoclinic (Pm) crystal structure co-exist in the PMN-35PT solid solution [2,3].…”

Section: Methodsmentioning

confidence: 99%

“…Currently, there are few reports on the deposition of Pb(Zr,Ti)O 3 -based [14,[17][18][19][20][21], BaTiO 3 -based [22][23][24] and (K,Na)NbO 3 -based [25] thick films on SS. In our previous work, energy storage-efficient PMN-10PT thick films were integrated on SS substrates [26], while this study focuses on a ferroelectric PMN-35PT with a composition close to the morphotropic phase boundary responsible for high piezoelectric response in bulk ceramics [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

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Multifunctional energy storage and piezoelectric properties of 0.65Pb(Mg_1/3Nb_2/3)O₃–0.35PbTiO₃ thick films on stainless-steel substrates

et al. 2022

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The miniaturization of electronic devices and power systems requires the fabrication of functional components in the form of micrometer-sized thick films. A major challenge is the integration of functional ceramics with metals, which are considered incompatible with high-temperature ceramic processing. To overcome the integration barrier, an aerosol deposition (AD) spray-coating method based on room temperature deposition can be used. By employing the AD method, we were able to deposit relaxor-ferroelectric 0.65Pb(Mg1/3Nb2/3)O3–0.35PbTiO3 ceramic thick films on low-cost stainless-steel substrates. The as-deposited films were dense, with ~97% of the theoretical density. Moreover, the post-deposition annealing at 500 °C did not result in any microstructural changes. Compared to the as-deposited films, the annealed films exhibit improved energy storage and electromechanical properties. The annealed thick films achieve a recoverable energy density of 15.1 J⋅cm−3 at an electric field of 1350 kV⋅cm−1 and an electric-field cycling stability of 5 million cycles. A piezoelectric response was detected through the entire film thickness by piezoelectric force microscopy. Macroscopic displacement measurements revealed a maximum relative strain of 0.38% at 1000 kV⋅cm−1, corresponding to inverse effective piezoelectric coefficient of ~40 pm⋅V−1. In this study, we overcame the integration challenges and demonstrated the multifunctionalization of future ceramic-metal structures, as the deposited thick films on stainless steel exhibit energy storage capability and piezoelectric properties.

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Direct Electrocaloric Characterization of Ceramic Films

et al. 2023

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Reliable and accurate characterization of the electrocaloric effect is necessary to understand the intrinsic properties of materials. To date, several methods are developed to directly measure the electrocaloric effect. However, each of them has some limitations, making them less suitable for characterizing ceramic films, which rely almost exclusively on less accurate indirect methods. Here, a new approach is proposed to address the process of rapid heat dissipation in ceramic films and to detect the electrically induced temperature change before it thermally bonds with the surrounding elements. By using a polymer substrate that slows heat dissipation to the substrate and fast infrared imaging, a substantial part of the adiabatic electrocaloric effect in Pb(Mg1/3Nb2/3)O3‐based ceramic films is captured. Infrared imaging provides a robust technique to reduce the ratio between the adiabatic and the measured electrocaloric temperature change in micrometer‐sized ceramic films to a single‐digit number, ≈3.5. The obtained results are validated with another direct thermometric method and compared with the results obtained with an indirect approach. Despite different measurement principles, the results obtained with the two direct methods agree well. The proposed approach is timely and can open a door to verify the predicted giant electrocaloric effects in ceramic films.

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Energy-storage-efficient 0.9Pb(Mg1/3Nb2/3)O3–0.1PbTiO3 thick films integrated directly onto stainless steel

Cited by 21 publications

References 49 publications

Temperature‐induced changes of the electrical and mechanical properties of aerosol‐deposited BaTiO₃ thick films for energy storage applications

Temperature‐induced changes of the electrical and mechanical properties of aerosol‐deposited BaTiO₃ thick films for energy storage applications

Multifunctional energy storage and piezoelectric properties of 0.65Pb(Mg_1/3Nb_2/3)O₃–0.35PbTiO₃ thick films on stainless-steel substrates

Direct Electrocaloric Characterization of Ceramic Films

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Energy-storage-efficient 0.9Pb(Mg1/3Nb2/3)O3–0.1PbTiO3 thick films integrated directly onto stainless steel

Cited by 21 publications

References 49 publications

Temperature‐induced changes of the electrical and mechanical properties of aerosol‐deposited BaTiO3 thick films for energy storage applications

Temperature‐induced changes of the electrical and mechanical properties of aerosol‐deposited BaTiO3 thick films for energy storage applications

Multifunctional energy storage and piezoelectric properties of 0.65Pb(Mg1/3Nb2/3)O3–0.35PbTiO3 thick films on stainless-steel substrates

Direct Electrocaloric Characterization of Ceramic Films

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Temperature‐induced changes of the electrical and mechanical properties of aerosol‐deposited BaTiO₃ thick films for energy storage applications

Temperature‐induced changes of the electrical and mechanical properties of aerosol‐deposited BaTiO₃ thick films for energy storage applications

Multifunctional energy storage and piezoelectric properties of 0.65Pb(Mg_1/3Nb_2/3)O₃–0.35PbTiO₃ thick films on stainless-steel substrates