Improving the dielectric and piezoelectric properties of screen-printed Low temperature PZT/polymer composite using cold isostatic pressing

Almusallam, Ahmed; Yang, Kai; Cao, Zhikai; Zhu, Dibin; Tudor, John; Beeby, Steve

doi:10.1088/1742-6596/557/1/012083

Cited by 6 publications

(5 citation statements)

References 4 publications

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“…Applying high pressure to the film can densify the material and reduce the number and size of the air voids. Cold Isostatic Pressing (CIP) is a technique that applies a homogenous and continuous (i.e. depending on the holding time) force across the surface of the material at room temperature.…”

Section: Theorymentioning

confidence: 99%

“…Different type of treatments can be useful in modifying the composite as per the requirements and thus provide ability to tailor composite properties. Some of these treatments methods are cold isostatic pressing , swelling the composite by dipping in solvent , heat treatments , hydroxylation , and microwave irradiation , etc. These are discussed further in this article.…”

Section: Theorymentioning

confidence: 99%

“…Almusallam et al reported improvement in dielectric and piezoelectric properties of screen‐printed PZT/polymer films for flexible electronics applications using Cold Isostatic Pressing (CIP). The investigation involved half/fully cured PZT/polymer composite pastes with weight ratio of 12:1 to investigate the effect of the CIP process on the piezoelectric and dielectric properties.…”

Section: Reviewmentioning

confidence: 99%

See 2 more Smart Citations

Dielectric and piezoelectric properties of PVDF/PZT composites: A review

Jain

Prashanth

Sharma

et al. 2015

Polymer Engineering & Sci

333

164

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Smart materials, which exhibit piezoelectricity, find an eclectic range of applications in the industry. The direct piezoelectric effect has been widely used in sensor design, and the inverse piezoelectric effect has been applied in actuator design. Ever since 1954, PZT and BaTiO 3 were widely used for sensor and actuator applications despite their toxicity, brittleness, inflexibility, etc. With the discovery of PVDF in 1969, followed by development of copolymers, a flexible, easy to process, nontoxic, high density alternate with high piezoelectric voltage coefficient was available. In the past 20 years, heterostructural materials like polymer ceramic composites, have received lot of attention, since these materials combine the excellent pyroelectric and piezoelectric properties of ceramics with the flexibility, processing facility, and strength of the polymers resulting in relatively high dielectric permittivity and breakdown strength, which are not attainable in a single phase piezoelectric material. The current review article is an attempt to provide a compendium of all the work carried out with reference to PVDF-PZT composites. The review article evaluates the effect of grain size, content and other factors under the purview of dielectric and piezoelectric properties while evaluating the sensitivity of the material for sensor application. POLYM. ENG. SCI., 55:1589-1616, 2015

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Section: Theorymentioning

confidence: 99%

Section: Theorymentioning

confidence: 99%

Section: Reviewmentioning

confidence: 99%

See 1 more Smart Citation

Dielectric and piezoelectric properties of PVDF/PZT composites: A review

Jain

Prashanth

Sharma

et al. 2015

Polymer Engineering & Sci

333

164

View full text Add to dashboard Cite

show abstract

“…The filled composite material is pressed under high pressure of the order of few megapascal (Mpa) for a fixed time period [19]. The samples prepared in this method suffers the disadvantage of having low dielectric and piezoelectric properties than compared to the samples prepared by hot press method [20].…”

Section: Cold Press Methodsmentioning

confidence: 99%

An effective approach on physical and dielectric properties of PZT-PVDF composites

Gowdhaman¹,

K²,

Annamalai³

2015

Int J of Adv in Sci Res

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The 0-3 connected ferroelectric composites made of PZT and PVDF have been examined for its different physical and dielectric properties. The standard methods presented in earlier literatures for the composite preparation have been compared to find an effective method. The distinction in the physical properties like density and porosity of the piezocomposite was studied and their SEM morphological facts are scrutinized. The dielectric constant of PZT-PVDF composite has been predicted by using standard models and the results are compared. Also the relaxation behavior of polymer at higher temperature has been justified.

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“…The attraction of this approach, for design applications, is that any pattern of piezoelectric buzzer can be achieved, providing the device sandwich structure is maintained. However, it typically has low acoustic performance even with the best printed piezoelectric materials (Almusallam, Yang, Cao, Zhu, Tudor and Beeby, 2014) and has a slightly more complex three layer structure than the planar spiral speaker approach selected, so the piezoelectric buzzer is not selected in this work.…”

Section: Theory and Design Of The Printed Speakermentioning

confidence: 99%

Dispenser-printed sound-emitting fabrics for applications in the creative fashion and smart architecture industry

Torah

Wei

et al. 2018

The Journal of The Textile Institute

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This paper presents a printing technology for the design and manufacture of interactive planar speakers. With this technology, sound emission can be easily integrated into various textiles at the design stage with minimal assembly after printing. This paper reports direct write dispenser printed sound emitting smart fabrics, aimed at creative fashion and smart architecture applications opening up new opportunities in product design. Planar spiral speakers generate a membrane vibration and so emit sound when driven from an a.c. audio source if a magnet is in close proximity to the spiral. These speakers are simpler to manufacture than conventional electromagnetic speakers and can be integrated on fabrics to form the basis of clothing in fashion applications. The speaker designs were printed on woven polyester fabric and produced a measured peak sound output level of 85 dB referenced to a reference sound pressure in air of 2×10-5 Pa. The printed fabric speakers demonstrate a wide frequency response from 20 Hz to 20 kHz. This research demonstrates a straightforward fabrication method, based on dispenser printing, to achieve sound emission from a fabric. The fabrication process requires a processing temperature of 130 o C for 10 minutes which is compatible with the majority of fabrics which are used in the fashion and architecture industries. This fabrication method is a direct write technique offering no waste and achieves a conductor resistivity of 7.69×10-6 Ω•m. This paper reports on the theory and the manufacturing technology to achieve direct write dispenser printed planar spiral speakers on fabrics.

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Improving the dielectric and piezoelectric properties of screen-printed Low temperature PZT/polymer composite using cold isostatic pressing

Cited by 6 publications

References 4 publications

Dielectric and piezoelectric properties of PVDF/PZT composites: A review

Dielectric and piezoelectric properties of PVDF/PZT composites: A review

An effective approach on physical and dielectric properties of PZT-PVDF composites

Dispenser-printed sound-emitting fabrics for applications in the creative fashion and smart architecture industry

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