Multifaceted incorporation of Zn-Al2O3/Cr2O3/SiO2 nanocomposite coatings: anti-corrosion, tribological, and thermal stability

Malatji, N.; Popoola, A. P. I.; Fayomi, O. S. I.; Loto, C. A.

doi:10.1007/s00170-015-7463-x

Cited by 43 publications

(19 citation statements)

References 12 publications

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“…Semiempirical molecular orbital calculations were used to calculate the highest occupied molecule orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) levels of BODTA at the ground state. [29][30][31] For further detailed analysis of reactivity and adsorption mechanism, Fukui function, which is dened by the following equations, 32,33 was performed to precisely predict the main active reaction sites:…”

Section: Quantum Chemical Calculationsmentioning

confidence: 99%

Electrochemical and adsorption behaviors of thiadiazole derivatives on the aluminum surface

et al. 2019

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Section: Quantum Chemical Calculationsmentioning

confidence: 99%

Electrochemical and adsorption behaviors of thiadiazole derivatives on the aluminum surface

et al. 2019

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“…The polarization and EIS measurements show that the composite prepared in the presence of ALES had better corrosion resistance than other composites. Although the exact role of the inert particles in the corrosion reaction has not been well understood, the enhanced corrosion resistance of the composites containing uniform particles has been attributed to various reasons in the literature [6,21,27,37,43]. In this case, this can be attributed to smaller size and more uniform distribution of the silica particles in the composite.…”

Section: Electrochemical Impedance Spectroscopy (Eis)mentioning

confidence: 99%

“…In this case, this can be attributed to smaller size and more uniform distribution of the silica particles in the composite. In fact, the uniform dispersion of the silica particles in the composite, in the presence of ALES, improves the filling of the surface defects, e.g., pores, gaps, and microholes, developing more finely grained, dense and compact structures on the part of the composite and strong interfacial bonding between the silica particles and the Ni metal in the composite [12,43]. However, in the presence of CTAC, due to the agglomeration of silica in the composite, a porous site with irregular surface is formed.…”

Section: Electrochemical Impedance Spectroscopy (Eis)mentioning

confidence: 99%

Effects of organically modified nanoclay on cellular morphology, tensile properties, and dimensional stability of flexible polyurethane foams

2013

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This article presents a method for the electrochemical preparation of a coating of nickel-silica nanocomposites on a carbon steel substrate. The incorporation of hydrophilic silica particles into the Ni composite coating during co-electrodeposition is so difficult due to the small size and the hydrophilicity of SiO 2 particle, generally less than 2 v% of silica is incorporated into the composite at different current densities, agitation speeds and silica concentrations. The effect of the presence of four surfactants, namely cocamidopropyl betaine (CAPB), decylglycoside (DG), cetyltrimethyl ammonium chloride (CTAC) and ammonium lauryl ether sulfate (ALES), on overcoming this problem was investigated in this research, and the surfactants were found to greatly influence the surface charge of silica, silica incorporation percentage and the microstructure of the composite. In fact, upon increasing the internal stresses, the products prepared in the presence of CAPB and DG were found to crack to some degree. CTAC was found to lead to entrapment mode silica co-deposition in the Ni coating. Furthermore, the addition of ALES into an electrolyte bath negatively supercharged silica surfaces and increased silica dispersion, which led to a dramatic increase in the silica incorporation percentages to around 14 v%. The results showed that Ni-SiO 2 composites prepared in the presence of ALES had better corrosion resistance, hardness and wear properties.

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“…sition of increased legislative restrictions on the application of these toxic pigments containing lead or chromium, many compounds have been suggested as environmentally friendly alternatives. [3][4][5][6] One of the important alternatives is ADTP. [7][8][9] However, ADTP belongs to the solid acid group of compounds, 1,2 and therefore is usually considered to be less effective in the most widely used amine--cured epoxy coatings due to the reaction between ADTP and the amine hardeners and further to inferior storage stability.…”

Section: Introductionmentioning

confidence: 99%

Effect of gamma-irradiation on the properties of aluminum dihydrogen triphosphate

Song

et al. 2017

JSCS

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The effect of gamma irradiation on the properties of aluminum dihydrogen triphosphate (ADTP) in the dose range of 0 to 150 kGy was studied by X-ray diffraction (XRD) analysis, thermal analysis, acid-base titration, electrochemical impedance spectroscopy (EIS) and scanning electron microscopy (SEM). Although the XRD and SEM results indicated that there were no significant effects on the crystal structure and the surface morphology of ADTP, thermal analysis revealed that the crystal transition of Al(PO 3) 3 from Type-B to Type-A did not occur at a high temperature in irradiated ADTP. EIS results showed that high-dose gamma irradiation (100 kGy and 150 kGy, 60 Co) improved the corrosion inhibition ability of ADTP on tinplate steel. SEM was used to investigate the surface of tinplate steel panels after immersion in ADTP extracts for 69 h, and revealed that many slices were formed on the surface. The slices were attributed to the formation of Fe 2 P 3 O 10. Inter-slice gaps may be the reason for the lower corrosion resistance of ADTP compared with the resistance of some toxic pigments containing lead and chromium. Overall, high doses of gamma irradiation improved the corrosion resistance of ADTP.

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Multifaceted incorporation of Zn-Al2O3/Cr2O3/SiO2 nanocomposite coatings: anti-corrosion, tribological, and thermal stability

Cited by 43 publications

References 12 publications

Electrochemical and adsorption behaviors of thiadiazole derivatives on the aluminum surface

Electrochemical and adsorption behaviors of thiadiazole derivatives on the aluminum surface

Effects of organically modified nanoclay on cellular morphology, tensile properties, and dimensional stability of flexible polyurethane foams

Effect of gamma-irradiation on the properties of aluminum dihydrogen triphosphate

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