Electrodeposition and characterisation of Cu–MWCNTs nanocomposite coatings

Ramalingam, S.; Balakrishnan, K.; Shanmugasamy, S.; Angaiah, Subramania

doi:10.1080/02670844.2016.1258164

Cited by 33 publications

(19 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Electodeposition has been widly perform to produce CNT S metal matrix composites due to its operation in low cost and low temperature and CNT S have been successfully co-deposited into MMC using electrodeposition [39,40]. CNTs composite coatings contact surface is the worn surface were much smoothening due to the less plastic deformation [41].…”

Section: Introductionmentioning

confidence: 99%

Assessment on the microhardness and corrosion resistance characteristics of Ni-SiC and Ni-MWCNT coatings by pulse reverse electrodeposition technique

ShathishKumar¹,

Jegan²

2020

Mater. Res. Express

View full text Add to dashboard Cite

The characteristics of Silicon carbide (SiC) and multi-walled carbon nanotube (MWCNT) nano composite coatings by a Pulse Reverse Electrodeposition (PRE) method is investigated in detail to enhance the microhardness (MH) and corrosion resistance characteristics of AISI 304 stainless steel substrate. The electrodeposition nature, dissolution behavior, surface characteristics are assessed by Scanning Electron Microscopy (SEM) with energy dispersive x-ray (EDX), x-Ray Diffraction (XRD), Atomic Force Microscopy (AFM), Microhardness (MH) Test and Electrochemical studies. The coatings are prepared in the watts type bath using pulse reverse electrodepositions (PRE) method of varying the electrolyte deposition parameters in different combinations. Present results clearly reveal that, there is a drastic improvement in the magnitude of microhardness of coated specimens, silicon carbide (SiC) and multi-walled carbon nanotube (MWCNT) composite coatings yield a maximum hike of 91.6% and 168% respectively. Furthermore, the Nyquist and impedance plots clearly depict that, multi-walled carbon nanotube (MWCNT) exhibits higher corrosion resistance characteristics. Recently, nanomaterial's like carbon nanotubes (CNTs) have gained significant focus as the incorporating filler to endow the composite coatings with functional properties such as smoothness [12], better hardness [12][13][14][15][16][17][18], lower coefficient of friction [13], better wear and resistance [12,15], corrosion resistance [14,19], higher compressive strength [16] and good flexibility [20,21].Carbon nanotubes (CNTs) [22, 23] possess excellent mechanical characteristics, such as high tensile strength, elastic modulus, thermal and electrical conductivity. The study into the practical applications of CNTs OPEN ACCESS RECEIVED

show abstract

Section: Introductionmentioning

confidence: 99%

Assessment on the microhardness and corrosion resistance characteristics of Ni-SiC and Ni-MWCNT coatings by pulse reverse electrodeposition technique

ShathishKumar¹,

Jegan²

2020

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…In order to increase the mechanical strength, corrosion and wear resistance, the second phase nanoparticles reinforced metal matrix nanocomposites has been prepared and reported in the earlier are Cu-TiO 2 , Cu-CeO 2 , Cu-SiO 2 , Cu-ZrO 2 , Cu-Al 2 O 3 , Cu-Si 3 N 4 , Cu-CNTs etc. [3][4][5][6][7][8][9][10][11][12].These second phase nanoparticles reinforced metal matrix nanocomposites showed increased hardness and better corrosion and wear resistance compared to particle free metal electrodeposits [13][14][15][16][17][18][19][20][21][22]. The advantages of electrodeposition is an excellent low cost and low temperature technique compared to the conventional methods such as powder metallurgy, sputtering, spin coating, thermal spraying, centrifugal casting etc., which is used to coat over the complicated conductive surfaces.…”

Section: Introductionmentioning

confidence: 99%

“…The synthesized Cu-nanoSiC composites were characterized for structural, mechanical and corrosion resistance properties by EDX, FESEM, XRD, Vickers hardness tester and Electrochemical AC impedance and Tafel polarization techniques and the results were compared with the pure copper electrodeposit. [11].The pH of the bath was maintained at ~1 throughout the process. The electroplating bath composition and preparation conditions are given in the Table1.…”

Section: Introductionmentioning

confidence: 99%

Nano SiC Reinforced Copper Nanocomposite by a Simple Electrodeposition Method

Ramalingam¹

2019

IJEAT

View full text Add to dashboard Cite

The Cu and Cu-SiCnanocomposite coatings were prepared by a simple electrodeposition technique from acidic copper sulphate electrolyte using SiC nanoparticles with an average particles size of 50 nm under optimized bath composition and preparation conditions for possible electrical contact material applications such as electrical switch and wiring boards where higher electrical conductivity and thermal conductivity is required. The scope of the present study is to enhance the strength, mechanical, corrosion and wear resistance properties of Cu-SiCnanocomposite compared to pure Cu coatings. The as prepared Cu and Cu-SiCnanocomposites were characterized for structural, mechanical and corrosion resistance properties by EDX, XRD, FESEM, Vickers microhardness tester and AC-impedance and Tafel polarization techniques. The elemental composition (wt% of Cu and SiC nanoparticles) of Cu-SiCnanocomposites was analyzed by EDX coupled with FESEM analysis confirms the presence of nanoSiC in the copper matrix and they were 89wt% of Cu and 11 wt% of SiC nanoparticles respectively. The surface morphology of Cu and Cu-SiCnanocomposites was studied by FESEM analysis shows that SiC nanoparticles were uniformly dispersed in the surface of the copper matrix compared to pure copper. The crystallite structure and grain size of the Cu and Cu-SiCnanocomposite electrodeposits was measured by XRD analysis. From the XRD results, the grain size calculated using Debye-Scherrer’s formula was ~35 nm for pure Cu and ~33 nm Cu-SiCnanocomposite. The crystallite structure of Cu and Cu-SiCnanocomposites was fcc (face centered cubic) and the preferred orientation of the plane was (220). The microhardness of Cu-SiCnanocomposite coating increased with increasing SiC nanoparticles concentration in the bath compared to pure Cu coating. The corrosion resistance measurements were performed for the pure Cu and Cu-SiCnanocomposite coatings by electrochemical impedance spectroscopy (EIS) and Tafel polarization techniques. It shows that, Cu-SiCnanocomposites has high corrosion resistance than pure Cu in 3.5wt% NaCl solution.

show abstract

“…The copper coating is widely used as the intermediate layer in multilayer coatings, protective coating, carbon barrier coating in carburizing operations, heat conduction coatings and etc . However, the hardness, wear resistance, and tensile strength of these coatings are poor and researchers have intended to produce copper‐based composite coatings by adding different particles such as SiC, Al 2 O 3 , CeO 2 , SiO 2 , and Si 3 N 4 to improve the properties and develop the applications of these coatings. Therefore, it can be stated that the properties of the composite coatings are improved depending on the type and properties of the particles and the electroplating conditions.…”

Section: Introductionmentioning

confidence: 99%

Deposition of Al₂O₃ ceramic film on copper‐based heterostructured coatings by aluminizing process: Study of the electrochemical responses and corrosion mechanism of the coating

Sabzi

Dezfuli

2018

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

The effect of deposition of the Al2O3 ceramic film by the aluminizing method on electrochemical responses and corrosion mechanism of copper‐based heterostructured coatings was studied. The single layer coatings of Cu and Al2O3 and Cu/Al2O3 double layers were produced using reverse pulsed current electroplating process followed by powder cementation of aluminum on a substrate made of Inconel 600 superalloy. The produced coatings were then characterized using Scanning Electron Microscope (SEM), Energy Dispersive Spectroscopy (EDS), and X‐ray Diffraction (XRD) methods. In order to evaluate the behavior and corrosion mechanism of the produced coatings, potentiodynamic polarization and electrochemical impedance spectroscopy methods were also used in 1 mol/L HCl solution at immersion times of 1, 12, 24, and 48 hours. The results of the study showed that the mechanism of the formation of Cu/Al2O3 copper‐based coatings is that in the aluminizing step, first, the diffusion of Al from the surface layers to the interior occurs and then the diffusion of Cu from the plating layer to the exterior takes places. It was also found that the deposition of the Al2O3 ceramic film resulted in the formation of α‐Al2O3 and CuAl2O4 phases and increased corrosion resistance in Cu/Al2O3 copper‐based coatings at all immersion times and the corrosion mechanism has changed from uniform to localized state.

show abstract

Electrodeposition and characterisation of Cu–MWCNTs nanocomposite coatings

Cited by 33 publications

References 36 publications

Assessment on the microhardness and corrosion resistance characteristics of Ni-SiC and Ni-MWCNT coatings by pulse reverse electrodeposition technique

Assessment on the microhardness and corrosion resistance characteristics of Ni-SiC and Ni-MWCNT coatings by pulse reverse electrodeposition technique

Nano SiC Reinforced Copper Nanocomposite by a Simple Electrodeposition Method

Deposition of Al₂O₃ ceramic film on copper‐based heterostructured coatings by aluminizing process: Study of the electrochemical responses and corrosion mechanism of the coating

Contact Info

Product

Resources

About

Electrodeposition and characterisation of Cu–MWCNTs nanocomposite coatings

Cited by 33 publications

References 36 publications

Assessment on the microhardness and corrosion resistance characteristics of Ni-SiC and Ni-MWCNT coatings by pulse reverse electrodeposition technique

Assessment on the microhardness and corrosion resistance characteristics of Ni-SiC and Ni-MWCNT coatings by pulse reverse electrodeposition technique

Nano SiC Reinforced Copper Nanocomposite by a Simple Electrodeposition Method

Deposition of Al2O3 ceramic film on copper‐based heterostructured coatings by aluminizing process: Study of the electrochemical responses and corrosion mechanism of the coating

Contact Info

Product

Resources

About

Deposition of Al₂O₃ ceramic film on copper‐based heterostructured coatings by aluminizing process: Study of the electrochemical responses and corrosion mechanism of the coating