Fabrication and characterisation of nickel coated Ni-NCZ (nickel coated ZrO<sub>2</sub>) composite coating

Arghavanian, R.; Ahmadi, Naghi Parvini; Yazdani, S.; Bostani, B.

doi:10.1179/1743294412y.0000000003

Cited by 18 publications

(25 citation statements)

References 33 publications

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“…2, the optical microscope images from surface morphologies and cross sections of the electroplated composite coatings have been shown. It must be reminded that the coatings have been coelectrodeposited in an applied magnetic field of 0.05 T. In previous work [29], NCZ particles used to produce Ni-NCZ composite coating and it has been shown that no significant increase occurred in the amount of incorporated particles (as compared to Ni-ZrO 2 ) but surface morphology became rough due to the electrical conductivity of the NCZ particles. No magnetic field was applied in that work.…”

Section: Resultsmentioning

confidence: 99%

“…But NCZ particle has conductive properties (covered with electroless Ni-P coating) so that when this particle is entrapped into the growing electrodeposited Ni coating, the Ni clusters will nucleate on the surface of the particle and the coating will cover the particle so that the surface morphology will be rough (Fig. 3b) [29].…”

Section: Resultsmentioning

confidence: 99%

“…The composition of the bath and the properties of the resulted NCZ particles have been investigated elsewhere [29]. Magnetic properties of NCZ powder were studied using vibrating sample magnetometer (VSM).…”

Section: Methodsmentioning

confidence: 99%

“…In another work [29], it has been illustrated that using electroless nickel coated ZrO 2 particles (NCZ particles) instead of ZrO 2 in co-electrodeposition of Ni-ZrO 2 composite coating causes higher microhardness and corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Field-enhanced co-electrodeposition of zirconia particles with a magnetic shell during Ni electrodeposition

Arghavanian¹,

Bostani²,

Parvini-Ahmadi³

et al. 2014

Surface and Coatings Technology

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Field-enhanced co-electrodeposition of zirconia particles with a magnetic shell during Ni electrodeposition

Arghavanian¹,

Bostani²,

Parvini-Ahmadi³

et al. 2014

Surface and Coatings Technology

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“…ZrO 2 particles are successfully incorporated into matrices such as Ni. [3][4][5], Cu [6], Zn [7] and Co [8]. In all cases ZrO 2 improves both mechanical (microhardness, wear resistance) and corrosion resistance properties of the coatings.…”

Section: Introductionmentioning

confidence: 98%

Characterization of Cr–ZrO2 composite coatings electrodeposited from Cr(III) bath

Bikulčius¹,

Češūnienė²,

Selskienė³

et al. 2018

chemija

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The aim of this work was to incorporate ZrO 2 particles into a Cr matrix within the research work aimed at obtaining metal matrix composite coatings (CrZrO 2 ) under direct current and to evaluate their protective properties. A CrZrO 2 composite coating was deposited from an electrolyte based on trivalent chromium sulphate with formate-urea as a complexing agent containing various concentrations of ZrO 2 . Cross-section investigations have revealed that ZrO 2 particles incorporated into the Cr coating are uniformly distributed. The results indicate that ZrO 2 particles influence the microhardness, morphology and corrosion behaviour of Cr-ZrO 2 composite coatings obtained from the Cr(III) bath. Keywords: zirconium, electrodeposited films, SEM, XPS, EIS, interfaces INTRODUCTIONHard chromium electrodeposition is extensively used in modern industry as it provides good corrosion and wear resistances of the coatings obtained. Commonly, chromium coatings are deposited from hazardous hexavalent chromium baths. In view of a very high toxicity of Cr(VI) compounds, the development of an alternative hexavalent chromium plating process is urgently needed. According to the EU Regulation (EC) No. 1907/2006 the use of chromium trioxide baths for functional and decorative chromium plating will be forbidden or severely limited after 1 September 2017.Among many potential alternatives, trivalent chromium (Cr(III)) plating is considered as a very promising technology to replace conventional hexavalent Cr plating. Inasmuch as Cr coatings deposited in Cr(III) baths do not feature such good properties as Cr coatings deposited in Cr(VI) baths, efforts have been made to improve them by various methods.Electrochemical codeposition of inert particles in a metal matrix is a suitable technique to produce composite materials with new exploitation properties. Different hard dispersion phases distinguish themselves for different electrical conductivity and surface charge, therefore, to incorporate one or another hard disperse phase into a metallic matrix, specific deposition conditions are required [1].One of popular ceramic particles is ZrO 2 . It is known [2,3] that ZrO 2 has many superior properties, such as high G. Bikulčius, A. Češūnienė, A. Selskienė, A. Grigucevičienė, V. Jasulaitienė The aim of this work was to form a Cr(III)-ZrO 2 composite in an environment-friendly Cr(III) bath under the conditions of constant current and to study the incorporation of ZrO 2 disperse particles into the Cr matrix, the elemental composition of the Cr-ZrO 2 composite, surface microhardness (HV), surface morphology (SEM, XPS) and corrosion resistance (OCP, Tafel and EIS). EXPERIMENTALCr-ZrO 2 composite coatings were deposited from the Cr(III) bath containing Cr 2 (SO 4 ) 3 6H 2 O (150 g l -1 ), H 3 BO 3 (30 g l -1 ), Na 2 SO 4 (60 g l -1 ), Al 2 (SO4) 3 18H 2 O (120 g l -1 ), NaF (20 g l -1 ), HCOONa (27 g l -1 ), NH 2 COONH 2 (g l -1 ) under a 30 l h -1 agitation flow of compressed air with a direct current density of 0.2 A cm -2 and pH 2.0 at 20°C. This...

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Synthesis and characterization of functionally graded nickel‐nickel coated ZrO₂ composite coating

Bostani

Ahmadi

Yazdani

et al. 2018

Materialwissenschaft Werkst

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Electroless‐nickel plated ZrO2 (NCZ) particles have been used to produce a functionally graded nickel‐electroless‐nickel plated ZrO2 composite coating. So, electroless‐nickel plated ZrO2 particles concentration was continuously increased from 0 to an optimum value in the electroplating bath (Watt's bath). The substrate was ST37 steel and the thickness of the coating was approximately 50 μm. Also a uniformly distributed nickel‐electroless‐nickel plated ZrO2 composite coating has been manufactured as comparison. The composite coatings were characterized by scanning electron microscopy and energy‐dispersive X‐ray spectroscopy. Structure and phase composition were identified by X‐ray diffraction analysis. Microhardness of the coatings was evaluated by employing a Vickers instrument. Three‐point bend test was carried out to compare the adhesion strength of the coatings. Dry sliding wear tests were performed using a pin‐on‐disk wear apparatus. The electrochemical behavior of the coatings was studied by electrochemical impedance spectroscopy. The microhardness measurements showed that, with increasing the co‐electrodeposited electroless‐nickel plated ZrO2 particle content in the nickel matrix, the microhardness increases from interface towards the surface of the functionally graded composite coating. Bend, wear and electrochemical test results confirmed that the functionally graded composite coating has higher adhesion, wear resistance and corrosion resistance as compared with the uniformly distributed coating. This has been attributed to lower mechanical mismatch between coating and substrate in functionally graded composite coating with respect to the uniformly distributed one.

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Fabrication and characterisation of nickel coated Ni-NCZ (nickel coated ZrO₂) composite coating

Cited by 18 publications

References 33 publications

Field-enhanced co-electrodeposition of zirconia particles with a magnetic shell during Ni electrodeposition

Field-enhanced co-electrodeposition of zirconia particles with a magnetic shell during Ni electrodeposition

Characterization of Cr–ZrO2 composite coatings electrodeposited from Cr(III) bath

Synthesis and characterization of functionally graded nickel‐nickel coated ZrO₂ composite coating

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Fabrication and characterisation of nickel coated Ni-NCZ (nickel coated ZrO2) composite coating

Cited by 18 publications

References 33 publications

Field-enhanced co-electrodeposition of zirconia particles with a magnetic shell during Ni electrodeposition

Field-enhanced co-electrodeposition of zirconia particles with a magnetic shell during Ni electrodeposition

Characterization of Cr–ZrO2 composite coatings electrodeposited from Cr(III) bath

Synthesis and characterization of functionally graded nickel‐nickel coated ZrO2 composite coating

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Product

Resources

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Fabrication and characterisation of nickel coated Ni-NCZ (nickel coated ZrO₂) composite coating

Synthesis and characterization of functionally graded nickel‐nickel coated ZrO₂ composite coating