Fabrication of Ni-ZrO2 Nanocomposite Coating by Electroless Deposition Technique

Algailani, Hiba M.; Mahmoud, Adel K.; Al-Kaisy, Hanaa A.

doi:10.30684/etj.v38i5a.491

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…These effects resulted in the clustering of components, such as nanosilver, within the coating structure and ultimately in the production of homogeneous coating layers. The addition of nanosilver and biotin resulted in a uniform and homogeneous finishing surface, fine grain structure with excellent integration or embedded in the matrix and became part of it, so there is a uniform dispersion through the natural polymer matrix of the coating [20][21][22]. That is, no major cracks and porosity were observed within the CS matrix.…”

Section: Morphological Analysis (Fesem)mentioning

confidence: 99%

Evaluation of Novel Chitosan Based Composites Coating on Wettability for Pure Titanium Implants

Hamad¹,

Al-Kaisy²,

Al-Shroofy³

et al. 2023

Journal of Renewable Materials

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This work aims to prepare chitosan (CS)-based coated layers, CS (10 wt% nanosilver/90 wt% CS, 10 wt% biotin/ 90 wt% CS, and 5 wt% nanosilver-5 wt% biotin)/90 wt% CS coatings are prepared, onto pure Ti substrate. The surface morphology of the novel CS composite coating was studied using field emission scanning electron microscopy, atomic force microscopy (AFM), Fourier transforms infrared (FTIR) and wettability test. Results show that the addition of (biotin, nanosilver) 5 Vol.% improves the properties of composite materials. Using different particles' scale size aid in improving the combinations in the alginate, producing a dual effect on film properties. Coating surface roughness decreased in the chitosan-based biocomposite with preferable homogeneity and crack-free coating layers, as confirmed by AFM. An increase in surface roughness ensured substitution, which enhanced the surface structures. The high wettability of the CS-based coating layers was due to the presence of nanoparticles, and the composite coatings with CS, nanosilver, or biotin had excellent wettability because of the good hydrophilic nature of the CS matrix combined with reinforced particles. The FTIR results showed that peaks of the blending of CS plus nanoparticles, CS plus biotin, or CS plus nanosilver plus biotin were excellent matching with no changes in the structure of the matrix.

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Section: Morphological Analysis (Fesem)mentioning

confidence: 99%

Evaluation of Novel Chitosan Based Composites Coating on Wettability for Pure Titanium Implants

Hamad¹,

Al-Kaisy²,

Al-Shroofy³

et al. 2023

Journal of Renewable Materials

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“…The properties of the material's surface can be changed using coating techniques without affecting the implant's overall properties [13,14]. In this study, we employed these two types of polymer to create a blend by chemical binding.…”

Section: Introductionmentioning

confidence: 99%

Investigation Some Characteristics of Biocomposites Coating for Biomedical Implants

Hamad

Abdulrahman

Issa

2022

KEM

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The surface has a vital function in the tissue's response to the presence of foreign material in the field of body implants. Surface modification with coatings can be adjusted to provide the highest service performance at the lowest cost. Coatings can increase corrosion resistance by reducing metal ion and corrosion product migration in the body. We fabricated polymer based bio-composite coatings by blending chitosan (Chi), alginate (Alg) and nanoparticles ((TiO2, Nb2O5) by dip coating onto a 316L stainless steel substrate. The coatings’ surface morphology and phases were studied using FESEM and FTIR analysis. The wettability behavior of the coated samples was also studied by investigating their contact wetting attributes. The antibacterial activity of the functionalized coatings was determined too. The FTIR results showed that the blending of Chi-Alg and nanoparticles was excellent, and no obvious differences in the spectra or any changes in the structures of the polymer matrices were observed. The SEM results demonstrated that the coating layers were uniform, homogeneous, and crack-free on the 316L Stianless steel substrate when using TiO2-Nb2O5 nano particles. The contact angle results showed the highly hydrophilic properties of the pure chitosan-alginate blend. As well, coatings containing nano particles showed the same antibacterial effect of chitosan-alginate blend coating.

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Study the Wear Characteristics for Ni‐ZrO₂ and Ni‐Al₂O₃ Nanocomposite Coatings Produced by Electroless Deposition Technique

Algailani,

Al-Nassar,

Mahmoud

et al. 2024

Material Design & Processing Communications

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Metal matrix nanocomposite coatings are promising for tribological applications given their superior hardness and wear resistance compared to metals. The point of this study was to describe the shape and long‐term performance of nickel‐based coatings that were put on stainless steel using electroless codeposition and made stronger with nanoparticles of zirconia (ZrO2) and alumina (Al2O3). Scanning electron microscopy showed the uniform incorporation of nanoceramics within nickel matrices. Pin‐on‐disk tribotests evaluated wear performance across loads from 5 to 15 N and sliding speeds up to 480 cm/min. Increasing nanoparticle content from 2 to 4 g/L markedly reduced wear rate due to enhanced hardness and density. At all tested loads, Ni‐ZrO2 and Ni‐Al2O3 nanocomposites exhibited considerably lower wear than monolithic nickel. The nanometal matrix particles hindered plastic deformation, with weight losses up to 68% lower than base nickel. Initially, wear resistance rose proportionally with sliding speed resulting from protective oxide layers until abrasive wear prevailed. The nanoparticle reinforcement dramatically extended durability, making it ideal for tribological systems involving mixed or abrasive conditions. More research needs to be done to find the best compositions and other matrix materials to use for these nanoscale strengthening effects.

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Fabrication of Ni-ZrO2 Nanocomposite Coating by Electroless Deposition Technique

Cited by 5 publications

References 8 publications

Evaluation of Novel Chitosan Based Composites Coating on Wettability for Pure Titanium Implants

Evaluation of Novel Chitosan Based Composites Coating on Wettability for Pure Titanium Implants

Investigation Some Characteristics of Biocomposites Coating for Biomedical Implants

Study the Wear Characteristics for Ni‐ZrO₂ and Ni‐Al₂O₃ Nanocomposite Coatings Produced by Electroless Deposition Technique

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Fabrication of Ni-ZrO2 Nanocomposite Coating by Electroless Deposition Technique

Cited by 5 publications

References 8 publications

Evaluation of Novel Chitosan Based Composites Coating on Wettability for Pure Titanium Implants

Evaluation of Novel Chitosan Based Composites Coating on Wettability for Pure Titanium Implants

Investigation Some Characteristics of Biocomposites Coating for Biomedical Implants

Study the Wear Characteristics for Ni‐ZrO2 and Ni‐Al2O3 Nanocomposite Coatings Produced by Electroless Deposition Technique

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Product

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Study the Wear Characteristics for Ni‐ZrO₂ and Ni‐Al₂O₃ Nanocomposite Coatings Produced by Electroless Deposition Technique