Ferroelectric ceramic-plastic composites for piezoelectric and pyroelectric applications

Newnham, R. E.; Skinner, Doyle P.; Klicker, K. A.; Bhalla, A. S.; Hardiman, B.; Gururaja, T.R.

doi:10.1080/00150198008226063

Cited by 68 publications

(13 citation statements)

References 4 publications

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“…Incorporating ferroelectric ceramic fillers with ferroelectric matrices to prepare composites is a common method to combine the advantages of inorganic ferroelectrics (e.g., high piezoelectric response) and ferroelectric polymers (e.g., favorable flexibility and processability) together. This strategy has been extensively adopted to fabricate dielectric composites for energy storage, electrocaloric composites for solid‐state cooling,, and piezoelectric and pyroelectric composites for sensors and energy harvesters . N.‐E.…”

Section: Mechanical Energy Harvesting With Piezoelectric Effect and Mmentioning

confidence: 99%

Harvesting Energy from Human Activity: Ferroelectric Energy Harvesters for Portable, Implantable, and Biomedical Electronics

Zhang

et al. 2018

Energy Tech

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Energy harvesters based on ferroelectric materials, which are capable of converting mechanical and thermal energies into electric power, have drawn unprecedented attention in both academic and industrial fields because of their great potential in harvesting human‐activity‐induced and other energies of the human body to drive low‐power, personal, portable, and implantable electronics. Based on previous works that uncovered the features of advanced materials and the nanotechnologies for the fabrication of ferroelectric generators, we emphasize the potential of ferroelectric energy harvesters in biomedical applications, with not only traditional ferroelectrics but also newly developed ferroelectric biomaterials. In addition, the latest representative integration schemes of hybrid generators with ferroelectric materials are outlined, which could markedly extend the functions of energy harvesters, especially for implantable and biomedical applications.

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Section: Mechanical Energy Harvesting With Piezoelectric Effect and Mmentioning

confidence: 99%

Harvesting Energy from Human Activity: Ferroelectric Energy Harvesters for Portable, Implantable, and Biomedical Electronics

Zhang

et al. 2018

Energy Tech

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“…The concept of connectivity was first developed by Newnham et al (1980), and later enhanced by Pilgrim and Newnham (1986). Connectivity describes the manner in which an individual material within a composite is physically in contact with itself (in all three directions).…”

Section: Introductionmentioning

confidence: 99%

Influence of aluminium inclusions on dielectric properties of three-phase PZT–cement–aluminium composites

Banerjee

Cook-Chennault

2014

Advances in Cement Research

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Novel three-phase piezoelectric composites that comprised lead zirconate titanate (PZT), aluminium and Portland cement were fabricated at a low poling voltage of 0 . 6 kV/mm and temperature of 1608C. Aluminium and PZT particles were distributed in a Portland cement matrix, and the dielectric constant, tan ä and strain coefficients were experimentally investigated as a function of inclusion volume fraction. The three-phase piezoelectric composites were found to possess higher piezoelectric strain coefficients, d 33 , than their two-phase counterparts (PZT and Portland cement composites). The highest value of d 33 observed for the three-phase composite was 8 . 1 pC/N for volume fractions of 0 . 7 and 0 . 2 for PZT and aluminium respectively, which was 164% of the value observed for the two-phase composite, at the same PZT volume fraction. An analytical model was used to predict values for the effective dielectric constant of the three-phase composites, and these values compared reasonably well to the empirical data. An investigation of sample degradation as a function of time was performed. Samples showed the highest degree of reduced dielectric performance occurred within two days of data capture, and minimal subsequent reduction in performance after 300 d. Electrical properties of the composites are influenced by the oxidation of aluminium by the alkaline constituents in the cement matrix, distribution of PZT and aluminium within the matrix, particle agglomeration, inclusion size, contact resistance between particles and air voids. The increased dielectric and piezoelectric strain coefficients, demonstrate that these types of materials may be useful in applications such as structural health monitoring and energy harvesting.

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“…Porous PZT ceramics has been developed by various techniques like foam reticulation (FR), Burnable plastic spheres (BURPS), freeze casting (FC), gel-casting, rapid prototyping and replamine process [5][6][7][8][9][10] . Every technique has its own advantages and dis-advantages.…”

Section: Introductionmentioning

confidence: 99%

Characterization of High Porous PZT Piezoelectric Ceramics by different Techniques

2018

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Ultimate properties of a porous ceramic is highly process dependent. In this study, prevalent porous ceramics fabrication methods (Freeze casting, Foam reticulation and Burnable Plastic Sphere (BURPS) method) have been compared by fabricating the porous lead zirconate titanate (PZT) based piezoelectric ceramics. Field Emission Scanning electron microscopy (FESEM) studies were carried out to study the pore size and distribution of the ceramics. Hydrostatic co-efficients increased tremendously on incorporation of porosity which led to Hydrostatic Figure of Merit of 7480 in Foam reticulation samples (porosity 86%). The three dimensionally interconnected networks in the freeze casted samples led to lowest acoustic impedance (6 MRayls) despite not having the lowest density.

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Ferroelectric ceramic-plastic composites for piezoelectric and pyroelectric applications

Cited by 68 publications

References 4 publications

Harvesting Energy from Human Activity: Ferroelectric Energy Harvesters for Portable, Implantable, and Biomedical Electronics

Harvesting Energy from Human Activity: Ferroelectric Energy Harvesters for Portable, Implantable, and Biomedical Electronics

Influence of aluminium inclusions on dielectric properties of three-phase PZT–cement–aluminium composites

Characterization of High Porous PZT Piezoelectric Ceramics by different Techniques

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