Microstructure and Properties of Duplex Ni-P-TiO2/Ni-P Nanocomposite Coatings

Zhang, Weihui; Cao, Di; Qiao, Yanxin; He, Zhen; Wang, Yuxin; Li, Xiang; Gao, Wei

doi:10.1590/1980-5373-mr-2018-0748

Cited by 11 publications

(7 citation statements)

References 23 publications

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“…In this situation, the weak XRD peaks are not distinguishable due to the low signal-to-noise ratio. Similar findings have been reported many times for the electroless coatings containing different nanoparticles [49][50][51].…”

Section: Surface Analysessupporting

confidence: 91%

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Electroless Ni–B–MMT nanocomposite on magnesium alloy

Miri

Seifzadeh

Rajabalizadeh

2021

Surface Engineering

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Ni-B and Montmorillonite (MMT)-containing Ni-B deposits were electrolessly plated on AM60B magnesium alloy. The Ni-B coating showed cauliflower-like micromorphology, microcrystalline-amorphous microstructure, and thickness of about 15 μm, which was not influenced by the inclusion of MMT nanoparticles. The surface roughness of the Ni-B coating changed from about 376 to 328 nm after the inclusion of MMT. The boron content of the electroless deposit was mildly increased after MMT inclusion. Thermal shock and porosity examinations revealed suitable adhesion and pore-free structure of the coatings, respectively. Polarization resistance of the Ni-B deposit in 3.5 wt-% sodium chloride was increased about 1.5 times by MMT inclusion. The corrosion current of the substrate was remarkably diminished from 46.89 to 0.12 µA cm −2 by the Ni-B plating. Also, MMT incorporation causes to further decrement of the corrosion current to about 0.03 µA cm −2 .

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Section: Surface Analysessupporting

confidence: 91%

“…Also, the micro-hardness is based on the content of the incorporated nanoparticles. So, a mild increase in the micro-hardness by the MMT incorporation may be related to its content in the matrix [49,54].…”

Section: Thermal Shock Porosity and Micro-hardnessmentioning

confidence: 99%

Electroless Ni–B–MMT nanocomposite on magnesium alloy

Miri

Seifzadeh

Rajabalizadeh

2021

Surface Engineering

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“…The electrodes were prepared in an electrolytic cell as follows: the tin plate (40 mm × 40 mm) was used as the anode and the pretreated titanium substrate (20 mm × 30 mm × 0.1 mm) was used as the cathode. TiO 2 sol was prepared following the procedures in previous work [24][25][26]. A certain amount (5, 10, 15 mL/L) of as-prepared TiO 2 sol was slowly dropped into the stirring electrolytes.…”

Section: Preparation Of Timentioning

confidence: 99%

Ti/SnO2-Sb2Ox-TiO2 Electrodeposited from Methanesulfonate Electrolytes: Preparation, Properties, and Performance

et al. 2022

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In this study, Ti/SnO2-Sb2Ox-TiO2 electrodes were produced using a sol-enhanced electrodeposition technique from methanesulfonate electrolytes. The surface microstructures of Ti/SnO2-Sb2Ox-TiO2 were observed, and their phase constituents were determined. The surface features were analyzed by X-ray photoelectron spectroscopy. Linear sweep voltammetry and degradation tests were also conducted to determine the degradation performance. The results show that the addition of TiO2 sol affects the microstructures of Ti/SnO2-Sb2Ox-TiO2 electrodes, while a uniform coating surface can be obtained at a proper sol concentration in electrolytes. Adding TiO2 sol also causes deep oxidation of Sb and generates more adsorbed oxygen on the electrode surface. The favorable surface features and the well-dispersed TiO2 in the coatings of 10 mL/L TiO2 modified Ti/SnO2-Sb2Ox-TiO2 electrodes award them the best electrocatalytic performance, and their uniform coating surface prolongs the electrode service life.

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“…Nanoparticles such as SiC [16], ZrO 2 [17], TN [18], WC [19], TiO 2 [20][21][22], and Al 2 O 3 [23] have recently been utilized as the second reinforcing phase for composite electrodeposition. In traditional composite electrodeposition techniques, nanometer-sized inert particles are added to the electrolytes to create films.…”

Section: Introductionmentioning

confidence: 99%

An Investigation into Electrodeposited Co−Ni−TiO2 Films with Improved Mechanical and Corrosion Properties

et al. 2023

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This investigation proposes the use of sol-enhanced electrodeposition to create a range of Co−Ni−TiO2 films. The addition of TiO2 sol controls the nucleation process and the properties of the composite films by generating TiO2 nanoparticles in situ in the electrodeposition process. The transmission electron microscopy (TEM) and zeta potential analyses revealed a relatively homogenous distribution with particle size in the range below 100 nm for the TiO2 nanoparticles produced. Microstructure, phase composition, hardness, friction, and corrosion resistance of Co−Ni−TiO2 films were thoroughly investigated in relation to TiO2 sol concentration. The results show that the addition of a limited content of TiO2 sol upgraded Co−Ni films by producing a Co−Ni−TiO2 film with a high dispersion of TiO2 nanoparticles. On the other hand, too much TiO2 sol could cause agglomeration and hinder the metal deposition process, resulting in surface pores and the deterioration of film performance.

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Microstructure and Properties of Duplex Ni-P-TiO2/Ni-P Nanocomposite Coatings

Cited by 11 publications

References 23 publications

Electroless Ni–B–MMT nanocomposite on magnesium alloy

Electroless Ni–B–MMT nanocomposite on magnesium alloy

Ti/SnO2-Sb2Ox-TiO2 Electrodeposited from Methanesulfonate Electrolytes: Preparation, Properties, and Performance

An Investigation into Electrodeposited Co−Ni−TiO2 Films with Improved Mechanical and Corrosion Properties

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