Effect of humidity, temperature, and elastomer material on the lifetime of silicone-based dielectric elastomer actuators under a constant DC electric field (Conference Presentation)

Albuquerque, Fabio Beco; Shea, Herbert

doi:10.1117/12.2558428

Cited by 9 publications

(6 citation statements)

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“…In fields like the agriculture sector, manufacturing industries, food processing sectors, and air quality, having an accurate humidity measurement is extremely important. [29][30][31][32][33][34]. In the present work, we report the effect of manganese substitution on structural, magnetic, optical, electrical, and humidity sensing properties of ZnFe 2 O 4 nanoparticles.…”

Section: Introductionmentioning

confidence: 86%

Evaluation of structural, magnetic, optical, electrical, and humidity sensing properties of manganese-substituted zinc ferrite nanoparticles

2021

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Manganese-zinc ferrite nanoparticles with composition Mn y Zn 1-y Fe 2 O 4 (0 ≤ x ≤ 1) were synthesized using the coprecipitation technique. The formation of cubic spinel structures with average crystallite sizes less than 16 nm is confirmed by X-ray diffraction. On replacing Zn 2+ ions with Mn 2+ ions, compressive lattice strain is produced which lowers the lattice parameter. Thermogravimetric analysis (TGA) demonstrates superior thermal stability of ZnFe 2 O 4 nanoparticles. The superparamagnetic nature of Mn-Zn ferrites was revealed by vibrating sample magnetometer (VSM). The specific magnetization lies between 14.6 and 21.7 emug −1 . The optical bandgap energy ranges from 2.34 to 2.84 eV. With increasing Mn 2+ ions, the dc electrical resistivity shows a preliminary increase followed by a steady decline. The exposure of ferrite pellets to humidity facilitates the conduction mechanism. Resistivity significantly decreases with increasing relative humidity. Among Mn-Zn ferrites, ZnFe 2 O 4 nanoparticles possess superior humidity sensing properties.

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Section: Introductionmentioning

confidence: 86%

Evaluation of structural, magnetic, optical, electrical, and humidity sensing properties of manganese-substituted zinc ferrite nanoparticles

2021

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“…Furthermore, if multiple DEA systems are prepared and the same of DEs are suddenly damaged, it can continue to drive by using the other DEs, and it will be possible to avoid the risk of not being able to drive at all [36,57]. Recently, attempts have been made to create DEAs using 3D printers (including Laser Structuring), a micro atmospheric plasma jets, or a pressure plasma jets [24,26,52].…”

Section: Lifetime Of a Deamentioning

confidence: 99%

Examination of factors to improve the performance of dielectric elastomer transducers and their applications

Chiba,

Waki,

Takeshita

et al. 2024

Smart Mater. Struct.

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Actuators, sensors, and generators using dielectric elastomers are inexpensive and light, and can be easily to structured, multilayer-able, and very efficient. They are　ideal for an eco-energy society. In the latest technology, an only 0.15 g dielectric elastomer can lift an 8 kg weight by 1 mm or more in just 88 ms. the near future, it can be applied to efficient drive systems of humanoid robots, systems that assist in driving the motors of electric vehicles, and various industrial machinery. It is highly likely that very thin and miniaturized dielectric elastomer sensors would also support the driving of motors. In addition, dielectric elastomer generators, which can be applied to various external forces, have attracted significant attention as a renewable energy source. In this paper, we discuss the R&D status of dielectric elastomers using mainly commercially available elastomer materials, give examples of issues, and discuss and their potential applications, and usefulness.The excellent performance of the dielectric elastomers mentioned above is largely due to their carbon-based electrodes. In this study, various carbon materials (including carbon grease, carbon black, MWCNT, and SWCNT) and their dielectric elastomer performances were compared.

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“…The biggest problem is that it is vulnerable to humidity [52,53]. This is especially noticeable when the temperature at which the DEs are used is high.…”

Section: Materials Used For Dielectric Elastomersmentioning

confidence: 99%

The Possibility of a High-Efficiency Wave Power Generation System Using Dielectric Elastomers

Chiba

Waki²,

Jiang

et al. 2021

Energies

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Power generation using dielectric elastomer (DE) artificial muscle is attracting attention because of its light weight, low cost, and high-efficiency. Since this method is a system that produces electricity without emitting carbon dioxide nor using rare earths, it would contribute to the goal of environmental sustainability. In this paper, the background of DEs, the associated high efficiency wave energy generation (WEG) systems that we developed using DEs, as well as the latest development of its material are summarized. By covering both the challenges and achievements, this paper discusses the opportunities to build the foundation of an energy recycling society through the usage of these WEGs. To make these possibilities commercially successful, the advantages of DEs need to be integrated with traditional technologies. To achieve this, the method of using DEs alone and a system used in combination with an oscillating water column were also considered. Finally, the current status and future of DE generators (DEGs) are discussed.

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Effect of humidity, temperature, and elastomer material on the lifetime of silicone-based dielectric elastomer actuators under a constant DC electric field (Conference Presentation)

Cited by 9 publications

References 0 publications

Evaluation of structural, magnetic, optical, electrical, and humidity sensing properties of manganese-substituted zinc ferrite nanoparticles

Evaluation of structural, magnetic, optical, electrical, and humidity sensing properties of manganese-substituted zinc ferrite nanoparticles

Examination of factors to improve the performance of dielectric elastomer transducers and their applications

The Possibility of a High-Efficiency Wave Power Generation System Using Dielectric Elastomers

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