Micro-scale damage sensing in self-sensing nanocomposite material based CNTs

Al‐Bahrani, Mohammed; Cree, Alistair

doi:10.1016/j.compositesb.2020.108479

Cited by 24 publications

(16 citation statements)

References 30 publications

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“…CNT and graphene, followed by extrusion to create the as a filament in one such method. The FDM process can additionally create Li-ion battery electrodes with CNT, which have improved electron and ion transport abilities [47].…”

Section: Additive Production Modeling Of Fused Deposition (Mfd)mentioning

confidence: 99%

Carbon Nanotube (CNT) Composites and its Application; A Review

Alhakeem¹

2022

Brilliance

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Due to their superior mechanical, thermal, electrical, and tri-biological characteristics, carbon nanotubes (CNTs) have been widely used in a variety of industries, from aerospace to energy, since their discovery in 1991. Their compact size, amazing tensile strength, and light weight They are often used as reinforcements in metals, plastics, and even additive manufacturing due to their popularity and conductivity. In this analysis, we present a list of these structures and an in-depth discussion of the CNT-reinforced materials can be processed using a variety of techniques, including chemical vapor deposition (CVD), ball milling, both laser melting and hot pressing. The restrictions in the production and processing of these composites additionally discussed, strengthened by many authored works. To comprehend how these composites' properties change in relation to other parameters, such as a wide range of variables, such as temperature, CNT length, diameter, etc. A summary is given, explaining various methods for performing experimental analysis and providing convincing arguments for putting the changes' causes in. Therefore, we investigate the specialized uses of these CNT-reinforced composites in industries like aerospace, energy, biomedicine, and auto, and how they can be handled further, altered to make room for less expensive and more effective fixes going forward.

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Section: Additive Production Modeling Of Fused Deposition (Mfd)mentioning

confidence: 99%

Carbon Nanotube (CNT) Composites and its Application; A Review

Alhakeem¹

2022

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“…Proof stress increased seven times at a larger multiwall carbon nanotube loading (1.6 vol.%) compared to a less noticeable increase in polymer-carbon nanotube composites. The containment of the Al matrix by the multi-walled carbon nanotubes on the nanoscale has been suggested as the cause of the improved mechanical properties [52][53][54][55].…”

Section: Composites Made Of Metal and Carbon Nanotubesmentioning

confidence: 99%

Use of Nano composites in industries

Alhakeem¹

2022

Brilliance

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High performance materials called Nano composites have unique features. Engineering plastics and elastomers are where Nano composites are most in demand, with an anticipated 25% annual growth rate. Their potential is so great that they are useful in many applications, from packaging to biomedical ones. The many forms of matrix Nano composites are covered in this review, with an emphasis on the need for these materials, their methods of manufacturing, and some recent findings regarding their structure, characteristics, and possible uses. The necessity for such materials in the future as well as other intriguing applications are projected. Applications of nano composites offer new technical and commercial potential for numerous sectors of the aerospace, automotive, electronics, and biotechnology industries because to their environmental friendliness.

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“…To deal with the challenges presented in the paragraph above, it has been suggested that the use of nanotechnology could deliver a potential solution for monitoring applications through manufacturing nanocomposites, sometimes referred to as self‐sensing nanocomposites. This could be achieved by the use of carbon nanotubes (CNTs) that take the role of multifunctional additive to the polymers to create a self‐sensing nanocomposite 15,16 . Certain CNTs have superior thermal, electrical, and mechanical properties 17,18 .…”

Section: Introductionmentioning

confidence: 99%

“…This could be achieved by the use of carbon nanotubes (CNTs) that take the role of multifunctional additive to the polymers to create a selfsensing nanocomposite. 15,16 Certain CNTs have superior thermal, electrical, and mechanical properties. 17,18 When incorporated as a nano-filler conductor into a resin matrix, even in small quantities, CNTs assist in the formation of electricity conductivity networks in the nanocomposite structure.…”

Section: Introductionmentioning

confidence: 99%

An innovated method to monitor the health condition of the thermoelectric cooling system using nanocomposite‐based CNTs

Al‐Bahrani

Majdi²,

Abed³

et al. 2022

Intl J of Energy Research

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Summary Many crucial applications use the thermoelectric coolers (TECs) system because they have some desirable properties, including durability, reliability, simple structure, and quietness. However, the performance of TECs is sensitive to any form of change and needs to be monitored constantly to ensure that they are working at their optimal. This paper proposes a novel approach for condition monitoring. This novel approach, unlike other attempts, does not need additional sensors but is directly carried out through the exploitation of the multi‐wall carbon nanotubes (MWCNTs) piezoresistive property. For the suggested approach, a polyurethane (PU) resin was altered using various MWCNTs concentrations with the aim of constructing self‐sensing nanocomposites sensors whose electrical conductivity is high. To investigate the electrical properties and microstructure of the constructed sensor, electrical resistance measurement, and scanning electron microscopy were used. From the results, it can be concluded that as the thickness increased, conductivity exhibited a monotonic increase. The peak electrical conductivity was 2.55 S.cm−1 for the 3.1 mm‐thick MWCNTs sensors. This is approximately 5.1 above that of the 0.6 mm‐thick MWCNTs sensors. Added to this, the MWCNT/PU sensors exhibited a high‐temperature sensitivity with a negative temperature coefficient of resistance. The normalised resistance obtained from the sensor with the uppermost MWCNTs concentration is lower in comparison to the sensors with lower concentrations of MWCNTs. Additionally, the TEC cooling temperature influence on the tunnelling distance between MWCNTs was analytically estimated. This study's numerical results indicate that there is a potential correlation between TEC cooling generated temperature and the variations noted in the tunnelling distance between MWCNTs with an explicit impact on the general nanocomposite sensors changes in electric resistance when the TEC system is in service.

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Micro-scale damage sensing in self-sensing nanocomposite material based CNTs

Cited by 24 publications

References 30 publications

Carbon Nanotube (CNT) Composites and its Application; A Review

Carbon Nanotube (CNT) Composites and its Application; A Review

Use of Nano composites in industries

An innovated method to monitor the health condition of the thermoelectric cooling system using nanocomposite‐based CNTs

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