Characterization of thermoelectric properties of multifunctional multiscale composites and fiber-reinforced composites for thermal energy harvesting

Sung, Dae Han; Kang, Gu‐Hyeok; Kong, Kyungil; Kim, Myung-Soo; Park, Hyung Wook

doi:10.1016/j.compositesb.2016.02.050

Cited by 40 publications

(16 citation statements)

References 24 publications

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“…More specifically, in the area of structural polymer composites, research has focused on the targeted enhancement of FRP’s TE properties through the introduction of nanomaterials [ 44 ]. Previous studies on in-plane and through-thickness TE properties of FRP laminates mainly focused on the polymer matrix-interfaces modification with nano or micro-scale fillers [ 45 ].…”

Section: Introductionmentioning

confidence: 99%

An Approach toward the Realization of a Through-Thickness Glass Fiber/Epoxy Thermoelectric Generator

et al. 2021

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The present study demonstrates, for the first time, the ability of a 10-ply glass fiber-reinforced polymer composite laminate to operate as a structural through-thickness thermoelectric generator. For this purpose, inorganic tellurium nanowires were mixed with single-wall carbon nanotubes in a wet chemical approach, capable of resulting in a flexible p-type thermoelectric material with a power factor value of 58.88 μW/m·K2. This material was used to prepare an aqueous thermoelectric ink, which was then deposited onto a glass fiber substrate via a simple dip-coating process. The coated glass fiber ply was laminated as top lamina with uncoated glass fiber plies underneath to manufacture a thermoelectric composite capable of generating 54.22 nW power output at a through-thickness temperature difference οf 100 K. The mechanical properties of the proposed through-thickness thermoelectric laminate were tested and compared with those of the plain laminates. A minor reduction of approximately 11.5% was displayed in both the flexural modulus and strength after the integration of the thermoelectric ply. Spectroscopic and morphological analyses were also employed to characterize the obtained thermoelectric nanomaterials and the respective coated glass fiber ply.

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Section: Introductionmentioning

confidence: 99%

An Approach toward the Realization of a Through-Thickness Glass Fiber/Epoxy Thermoelectric Generator

et al. 2021

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“…The thermoelectric properties and potential thermal energy harvesting of CNT‐GF/epoxy multiscale and CF/epoxy composites were studied. [ 305 ] Different amounts of CNT (0.5, 1, 3, and 5 wt.%) were mixed with resin in order to manufacture CNT‐GF/epoxy multiscale composites. The CNT‐GF/epoxy multiscale composites and CF/epoxy composite exhibited n ‐type and p ‐type thermoelectric behavior, respectively.…”

Section: Applications Of Fiber Reinforced Smart Compositesmentioning

confidence: 99%

Graphene and CNT‐Based Smart Fiber‐Reinforced Composites: A Review

Islam

Afroj

Uddin

et al. 2022

Adv Funct Materials

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Multifunctional fiber-reinforced polymer (FRP) composites provide an ideal platform for next-generation smart composites applications including structural health monitoring, electrical and thermal conductivity, energy storage and harvesting, and electromagnetic interference shielding without compromising their mechanical properties. Recent progress in carbon-based nanomaterials such as graphene and carbon nanotubes (CNTs) has enabled the development of many novel multifunctional composites with excellent mechanical, electrical, and thermal properties. However, the effective incorporation of such carbon nanomaterials into FRP composites using scalable, high-speed, and cost-effective manufacturing without compromising their performance is challenging. This review summarizes the recent progress on graphene and CNT-based FRP composites, their manufacturing techniques, and their applications in smart composites. Current technical challenges and future perspectives on smart FRP composites research to facilitate an essential step toward moving from research and development-based smart composites to industrial-scale mass production are also discussed.

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“…This has facilitated tremendous advancement in developing nanostructured hierarchical composites and textiles. Specifically, researchers have widely used carbon nanotubes due to their extraordinary properties for applications such as improving the mechanical properties of composites [3][4][5], self-sensing composites [6][7][8], energy harvesting composites [9,10], wearable strain sensors and flexible pressure sensors [11][12][13][14][15], sensing skin for structural health monitoring [16][17][18] and fatigue crack monitoring [19,20] and damage monitoring of joints [21].…”

Section: Introductionmentioning

confidence: 99%

Characterizing the Effect of Transverse Strain on Carbon Nanotube Based Sensing Skins for Structural Health Monitoring

Chaudhari¹,

Sung²,

Weiss³

et al. 2020

SAMPE 2020 | Virtual Series

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Due to the advancement in the science of processing and characterization of nanostructured materials, along with the industrial-scale production and decreasing cost of carbon nanotubes, their use in technologies as sensors and sensing skins is gaining popularity. With increasing Technology Readiness Levels (TRL) and field trials implemented by researchers, it is critical to characterize the sensing response of the carbon nanotube sensing skins under complex loading scenarios in order to simulate the real-life conditions. Typically, researchers describe the sensitivity (gage factor, GF) and sensing response of a carbon nanotube sensing skin based on the electrical resistance change and the longitudinal strain (ε1), not taking into consideration the effect of transverse strain (ε2) due to the Poisson's ratio of the material. Since the sensitivity of the sensor is dependent on the transverse strain, the sensitivity is affected by the properties of the substrate material. As a result, the calibration of the sensing skin is challenging. The principal objective of our research is to characterize the effect of transverse strain and develop a methodology to quantify the influence of transverse strain on the sensing response. The carbon nanotube-based sensing skins are manufactured using a scalable manufacturing technique and the effect of different loading scenarios on the sensing response are investigated. Carbon nanotubes are deposited on non-woven aramid fabrics with randomly oriented fibers and the resulting carbon nanotube-based sensing skin is bonded to steel and composite substrates which are subjected to flexural and axial loads to characterize the sensing response. A cruciform shaped specimen with a carbon nanotube sensor is tested using a biaxial testing machine and change in resistance under varying transverse loads is characterized. Key results indicate that the sensitivity of the carbon nanotube sensing skin is significantly affected by the transverse strain due to the Poisson effect which should be taken into consideration when calculating the gage factor or calibrating the sensors.

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Characterization of thermoelectric properties of multifunctional multiscale composites and fiber-reinforced composites for thermal energy harvesting

Cited by 40 publications

References 24 publications

An Approach toward the Realization of a Through-Thickness Glass Fiber/Epoxy Thermoelectric Generator

An Approach toward the Realization of a Through-Thickness Glass Fiber/Epoxy Thermoelectric Generator

Graphene and CNT‐Based Smart Fiber‐Reinforced Composites: A Review

Characterizing the Effect of Transverse Strain on Carbon Nanotube Based Sensing Skins for Structural Health Monitoring

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