Effect of ultrasonication and Na<sub>2</sub>MoO<sub>4</sub> content on properties of electroless Ni–Mo–P coatings

Jiang, Jibo; Chen, Haotian; Wang, Yuhong; Zhu, Liying; Sun, Yaoxin; Lin, Hualin; Han, Sheng; Luo, Yong; Qian, Wei

doi:10.1080/02670844.2018.1537612

Cited by 13 publications

(4 citation statements)

References 35 publications

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“…However, the sum of R coat and R ct of the UF-Ni-Mo-P/MoS 2 coating (7752 Ω•cm 2 ) is increased than that of Ni-Mo-P coating. It is due to mechanical effect ultrasound improves the nucleation rate and restrains the grain volumes, making the internal structure of the UF-Ni-Mo-P/MoS 2 coating denser, which improve the electrochemical corrosion resistance [21,39]. These test results are consistent with the conclusions of the Tafel test.…”

Section: Corrosion Behavioursupporting

confidence: 82%

Ultrasonic-assisted Ni–Mo–P doping hydrothermal synthesis of clustered spherical MoS₂ composite coating: wear and corrosion resistance

Jiang

Sun

Zhou

et al. 2020

Surface Engineering

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In this study, MoS 2 particle and ultrasonic field (UF) were successfully employed to produce Ni-Mo-P, Ni-Mo-P/MoS 2 and UF-Ni-Mo-P/MoS 2 electroless composite coatings on Q235 mild steel. The surface microscopic, microstructures and roughness of the coating were studied using scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), atomic force microscope (AFM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The corrosion resistance was analysed by Tafel plots and by electrochemical impedance spectroscopy (EIS). The results indicated that compared to a pure Ni-Mo-P coating, the UF-Ni-Mo-P/MoS 2 composite coating exhibited better corrosion resistance. The friction tests showed that MoS 2 particle enhanced the wear resistance of the composite coating. The potential mechanism was that ultrasonic field suppressed the hydrogen gas occlusion and brought about a uniform and dense surface.

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Section: Corrosion Behavioursupporting

confidence: 82%

Ultrasonic-assisted Ni–Mo–P doping hydrothermal synthesis of clustered spherical MoS₂ composite coating: wear and corrosion resistance

Jiang

Sun

Zhou

et al. 2020

Surface Engineering

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“…Electroless Ni-P coating is considered as the preferred method among various surface treatments to enhance the corrosion and wear resistance of magnesium alloys [14][15][16] . Recently, for exploring the application of electroless Ni-P coating, co-deposition of metallic elements such as W 17,18 , Cu 19 , Ag 20 , Fe 21 , Zn 22 , Mo 23 , and Co 24 formed Ni-X-P ternary alloy coatings with superior hardness, corrosion resistance and wear resistance. In particular, the Ni-W-P coating have received wide attention due to the special characteristics of the W element, such as high hardness, high melting point and low coefficient of expansion 25 .…”

Section: Introductionmentioning

confidence: 99%

Effect of Rare Earth on the Corrosion Resistance of Electroless Ni-Mo-P Composite Coatings

et al. 2022

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A kind of corrosion-resistant Ni-Mo-P composite coating was deposited on the surface of AZ91D magnesium alloy substrate by electroless plating method with different concentration of Ce(NO 3 ) 3 and Nd(NO 3 ) 3 . The deposition mechanism of Ni-Mo-P composite coating was explored. Furthermore, the effects of Ce(NO 3 ) 3 and Nd(NO 3 ) 3 concentration on the microstructure and properties of Ni-Mo-P composite coatings were studied. Results indicated that the Ni-Mo-P composite coatings prepared by adding the optimal concentration of Ce(NO 3 ) 3 and Nd(NO 3 ) 3 had few defects. Meanwhile, the deposition rate of the composite coatings and the adhesion between the coating and the magnesium alloy substrate were improved. When the concentration of Ce(NO 3 ) 3 and Nd(NO 3 ) 3 were 0.10 and 1.00 g/L, the Ni-Mo-P composite coatings had the minimum corrosion rate of 0.826 and 0.681 g/m 2 •h, respectively. Herein, compared with the addition of Ce(NO 3 ) 3 , the Nd(NO 3 ) 3 added Ni-Mo-P composite coating has the maximum arc radius of capacitive resistance and significant improvement corrosion resistance.

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“…Ceramic substrates have attracted much research interest thanks to their chemical and environmental stability, low cost, and good mechanical and thermal properties. In order to overcome the major drawback of their insulating nature [ 1 ], the electroless deposition (ED) was proposed as a promising approach as it is a facile, low cost, and efficient process allowing the synthesis of conductive, homogenous, continuous, and compact films irrespective of the geometry and nature of the substrate, without the need for external electricity [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Graphene Oxide-Polypyrrole Coating for Functional Ceramics

2020

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Ceramic substrates were metallized with a Ni-Mo-P electroless coating and further modified with a polypyrrole (PPy) coating by the electrodeposition method. The properties of the polypyrrole coating were studied with the addition of a graphene oxide (GO) nanomaterial prior to the electrodeposition and its reduction degree. Fourier Transform Infrared Spectroscopy, Field-Emission Scanning Electron Microscopy, Raman spectroscopy and cyclic voltammetry were employed to characterize the properties of the coatings. The results indicated the successful synthesis of conductive electrodes by the proposed approach. The electrodeposition of PPy and its charge storage properties are improved by chemically reduced GO. The surface capacitive contribution to the total stored charge was found to be dominant and increased 2–3 fold with the reduction of GO. The chemically reduced GO-modified PPy exhibits the highest capacitance of 660 F g−1 at 2 mV s−1, and shows a good cyclability of 94% after 500 charge/discharge cycles. The enclosed results indicate the use of an NiMoP electroless coating, and modification with a carbon nanomaterial and conducting polymer is a viable approach for achieving functional ceramics.

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Effect of ultrasonication and Na₂MoO₄ content on properties of electroless Ni–Mo–P coatings

Cited by 13 publications

References 35 publications

Ultrasonic-assisted Ni–Mo–P doping hydrothermal synthesis of clustered spherical MoS₂ composite coating: wear and corrosion resistance

Ultrasonic-assisted Ni–Mo–P doping hydrothermal synthesis of clustered spherical MoS₂ composite coating: wear and corrosion resistance

Effect of Rare Earth on the Corrosion Resistance of Electroless Ni-Mo-P Composite Coatings

Graphene Oxide-Polypyrrole Coating for Functional Ceramics

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Effect of ultrasonication and Na2MoO4 content on properties of electroless Ni–Mo–P coatings

Cited by 13 publications

References 35 publications

Ultrasonic-assisted Ni–Mo–P doping hydrothermal synthesis of clustered spherical MoS2 composite coating: wear and corrosion resistance

Ultrasonic-assisted Ni–Mo–P doping hydrothermal synthesis of clustered spherical MoS2 composite coating: wear and corrosion resistance

Effect of Rare Earth on the Corrosion Resistance of Electroless Ni-Mo-P Composite Coatings

Graphene Oxide-Polypyrrole Coating for Functional Ceramics

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Effect of ultrasonication and Na₂MoO₄ content on properties of electroless Ni–Mo–P coatings

Ultrasonic-assisted Ni–Mo–P doping hydrothermal synthesis of clustered spherical MoS₂ composite coating: wear and corrosion resistance

Ultrasonic-assisted Ni–Mo–P doping hydrothermal synthesis of clustered spherical MoS₂ composite coating: wear and corrosion resistance