Relations between the piezoelectric performance and quality factors in a corundum-containing composite

Borzov, P. A.; Topolov, V. Yu.; Bowen, Christopher R.

doi:10.1016/j.matchemphys.2019.05.019

Cited by 5 publications

(2 citation statements)

References 24 publications

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“…Cement-based composites with piezoelectric materials have been developed with materials such as lead magnesium niobate ceramic [17], lead zirconate titanate (PZT)-silica fume [18], PZT-aluminum [19], and carbon black [20,21], as active phases. In addition, composites capable of generating higher amounts of electrical current have been considered appropriate for energy harvesting applications [7], while composites capable of generating lower amounts of electrical current have been considered appropriate for developing stress-strain sensors in smart civil infrastructure applications [22]. However, all of them exhibit a decline in electric current during subsequent load cycles, as Chen has declared in his review of piezoelectric cement-based composites [7].…”

Section: Introductionmentioning

confidence: 99%

Low Concentrations of Gold Nanoparticles as Electric Charge Carriers in Piezoelectric Cement-Based Materials

Triana-Camacho,

Mendoza Reales,

Quintero-Orozco

2024

Materials

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Piezoelectric cement-based composites could serve to monitor the strain state of structural elements or act as self-powered materials in structural health monitoring (SHM) applications. The incorporation of piezoelectric materials as an active phase within cement matrices has presented a highly attractive avenue until today. However, their application is challenged by the low electrical conductivity of the hydrated cement matrix. Gold nanoparticles (Au NPs) possess substantial potential for elevating the free electrical charge within the matrix, increasing its electrical conductivity between the Au NPs and the cement matrix, thereby enhancing the piezoelectric response of the composite. In this sense, the objective of this study is to investigate the effects of incorporating low concentrations of gold nanoparticles (Au NPs) (442 and 658 ppm) on the electrical and piezoelectric properties of cement-based composites. Additionally, this study considers the effects of such properties when the material is cured under a constant electric field. Electrical impedance spectroscopy was used to evaluate the polarization resistance and piezoresistive properties of the material. Additionally, open-circuit potential measurements were taken alongside the application of mechanical loads to assess the piezoelectric activity of the composites. The findings revealed a notable decrease in the composite’s total electrical resistance, reaching a value of 1.5 ± 0.2 kΩ, almost four times lower than the reference specimens. In the realm of piezoelectricity, the piezoelectric voltage parameter g33 exhibited a remarkable advancement, improving by a factor of 57 when compared to reference specimens. This significant enhancement can be attributed to both the concentration of Au NPs and the electrical curing process. In summary, the outcomes of this study underscore the feasibility of creating a highly electrically conductive cement-based matrix, using low concentrations of gold nanoparticles as electric charge carries, and indicate the possible piezoelectric behavior of the studied compposite.

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Section: Introductionmentioning

confidence: 99%

Low Concentrations of Gold Nanoparticles as Electric Charge Carriers in Piezoelectric Cement-Based Materials

Triana-Camacho,

Mendoza Reales,

Quintero-Orozco

2024

Materials

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“…where dij * is the piezoelectric charge coefficient, gij * is the piezoelectric voltage coefficient, ii * is the absolute dielectric permittivity and sjj *E is the elastic compliance; the asterisk (*) notation signifies the effective properties of the piezo-active composite material. In specific applications, mechanical and electric quality factors, piezoelectric anisotropy, sensitivity [6,8], and other characteristics of piezo-active composites can also be taken into account.…”

Section: Introductionmentioning

confidence: 99%

Twelve modified figures of merit of 2–2-type composites based on relaxor-ferroelectric single crystals

Isaeva

Topolov

Bowen

et al. 2022

Materials Chemistry and Physics

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Some electrophysical parameters of novel clay- and corundum-containing composites based on ferroelectric ceramics

et al. 2020

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Relations between the piezoelectric performance and quality factors in a corundum-containing composite

Cited by 5 publications

References 24 publications

Low Concentrations of Gold Nanoparticles as Electric Charge Carriers in Piezoelectric Cement-Based Materials

Low Concentrations of Gold Nanoparticles as Electric Charge Carriers in Piezoelectric Cement-Based Materials

Twelve modified figures of merit of 2–2-type composites based on relaxor-ferroelectric single crystals

Some electrophysical parameters of novel clay- and corundum-containing composites based on ferroelectric ceramics

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