Thermal Sprayed CNT Reinforced Nanocomposite Coatings – A Review

Singla, Manoj; Singh, Harpreet; Chawla, Vikas

doi:10.4236/jmmce.2011.108056

Cited by 9 publications

(10 citation statements)

References 14 publications

(13 reference statements)

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“…One limitation of thermal-sprayed coatings is that these coatings consist of cracks or voids at splat boundaries, and these coatings are attacked through these voids (Deshpande et al , 2004, 2006; Kamal et al , 2009). Therefore, there is still scope to improve the corrosion resistance of these coatings (Singla et al , 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Carbon nanotubes (CNTs) were invented in 1991, these are hundreds of times stronger than the high-grade carbon steels and have exceptional thermal and electrical properties (Andzelm et al , 2006; Yu and Meyyappan, 2006; Iijima, 1991; Han and Fina, 2011; Liew et al , 2004; Yu et al , 2000; Krishnan et al , 1998; Loos, 2015). Owing to exceptional properties, CNTs can be effectively used as reinforcement materials in composites (Singla et al , 2011; Ali et al , 2014; Park et al , 2013; Ali et al , 2015). A few researchers have enhanced the corrosion resistance of CNTs-based composite coatings (Chen et al , 2005; Praveen et al , 2007).…”

Section: Introductionmentioning

confidence: 99%

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Improving the high-temperature oxidation resistance of ASME-SA213-T11 boiler tube steel by plasma spraying with CNT-reinforced alumina coatings

Goyal

Sidhu

Chawla

2018

ACMM

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Purpose This paper aims to discuss that a conventional Al2O3, 1.5 Wt.% carbon nanotubes (CNTs)-Al2O3, 2 Wt.% CNTs-Al2O3 and 4 Wt.% CNTs-Al2O3 composite coatings were deposited with the help of Plasma spray process. Design/methodology/approach To better understand the effect of CNT reinforcement on oxidation resistance, high-temperature oxidation behaviour of conventional Al2O3, 1.5 Wt.% CNTs-Al2O3, 2 Wt.% CNTs-Al2O3 and 4 Wt.% CNTs-Al2O3 composite coatings at 900°C was compared with the performance of the uncoated ASME-SA213-T11 boiler tube steel substrate. Findings The results showed that the CNT-reinforced alumina coatings exhibited better oxidation resistance and thermal stability than uncoated ASME-SA213-T11 boiler tube steel. The coated steel substrates had a lower mass gain rate than the substrate after different oxidation times. Originality/value Limited literature is available where the CNT have been reinforced into the composite alloy powders and has been thermally spray-deposited for various surface engineering applications. This research showed that with the increase in the percentage of CNTs into the alloy powder mixture, there is a significant reduction in weight gain and hence higher resistance to oxidation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improving the high-temperature oxidation resistance of ASME-SA213-T11 boiler tube steel by plasma spraying with CNT-reinforced alumina coatings

Goyal

Sidhu

Chawla

2018

ACMM

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“…In the corrosive environment, these coatings are attacked through these voids [37][38][39]. Therefore, despite success of thermal spray coatings in recent past, there has still a great interest among researchers to develop new coating materials for enhanced corrosion resistance at high temperature [40].…”

Section: Thermal Spray Coatingsmentioning

confidence: 99%

“…Carbon nanotubes are 100's of times stronger than the high grade carbon steels and have many times higher tensile modulus than steel [46][47][48]. These properties of CNTs make them potential reinforcement for the composite materials [40]. A few researchers have used CNTs-Metal composite coatings to enhance the corrosion resistance of Ni and Zn based composite coatings [49,50].…”

Section: Carbon Nanotubes As Reinforcement Materialsmentioning

confidence: 99%

Multi-Walled CNT Reinforcement to Thermal Spray Coatings

Goyal

Sidhu

Chawla

2018

AJEAT

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Thermal spraying coating techniques have emerged as very effective surface protection technology to apply protective coatings for corrosion and wear resistance applications. These coatings have gained more importance in recent past. Advances in powder and wire production have resulted in development of various types of surface coatings with excellent wear and corrosion resistance properties. Because of excellent mechanical, thermal and electrical properties of Carbon Nanotubes, CNTs reinforced composite coatings are being developed for various applications, e.g. automotive, aerospace and sports equipment industry. It is observed that if properly deposited, these CNTs ceramic composite coatings can provide improved properties like wear and corrosion resistance. It has been found that CNTs composite coatings can be successfully deposited by thermal spraying techniques, and these coatings provide better performance than conventional coatings. This paper reviews the performance of such coatings developed by various researchers.

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“…Although this method allows the easy and cheap fabrication of a stretchable sensor on various substrates including glass, quartz, Indium tin oxide, and polymers, it has limitations in terms of the size and thickness of the CNT pattern. The thickness of the CNT pattern is approximately 20 μm to a few millimeters [20]. A thick CNT pattern has poor adhesion on the substrate and high heterotypic characteristics, resulting in the pattern having poor properties and being easily peeled off [21].…”

Section: Introductionmentioning

confidence: 99%

Direct Patterning of a Carbon Nanotube Thin Layer on a Stretchable Substrate

et al. 2019

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Solution-based direct patterning on an elastomer substrate with meniscus-dragging deposition (MDD) enables fabrication of very thin carbon nanotube (CNT) layers in the nanometer scale (80–330 nm). To fabricate the CNT pattern with CNT solution, contact angle, electrical variation, mechanical stress, and surface cracks of elastomer substrate were analyzed to identify the optimal conditions of O2 treatment (treatment for 30 s with RF power of 50 W in O2 atmosphere of 50 sccm) and mixture ratio between Ecoflex and polydimethylsiloxane (PDMS) (Ecoflex:PDMS = 5:1). The type of mask for patterning of the CNT layer was determined through quantitative analysis for sharpness and uniformity of the fabricated CNT pattern. Through these optimization processes, the CNT pattern was produced on the elastomer substrate with selected mask (30 μm thick oriented polypropylene). The thickness of CNT pattern was also controlled to have hundreds nanometer and 500 μm wide rectangular and circular shapes were demonstrated. Furthermore, the change in the current and resistance of the CNT layer according to the applied strain on the elastomer substrate was analyzed. Our results demonstrated the potential of the MDD method for direct CNT patterning with high uniformity and the possibility to fabricate a stretchable sensor.

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Thermal Sprayed CNT Reinforced Nanocomposite Coatings – A Review

Cited by 9 publications

References 14 publications

Improving the high-temperature oxidation resistance of ASME-SA213-T11 boiler tube steel by plasma spraying with CNT-reinforced alumina coatings

Improving the high-temperature oxidation resistance of ASME-SA213-T11 boiler tube steel by plasma spraying with CNT-reinforced alumina coatings

Multi-Walled CNT Reinforcement to Thermal Spray Coatings

Direct Patterning of a Carbon Nanotube Thin Layer on a Stretchable Substrate

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