The Importance of Electroless Metallic Build-Up on Surface Modified Substrates for Multifunctional Engineering Applications: A Recent Progress Update

Gharde, Swaroop; Kandasubramanian, Balasubramanian

doi:10.1007/s12666-018-1397-6

Cited by 11 publications

(4 citation statements)

References 126 publications

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“…Ni-P alloy and Ni-B alloy are two common chemical deposition alloys [7][8][9][10]. The process cost of electroless deposition of Ni-B alloy is high, the deposition rate is slow, and the corrosion resistance of the coating is poor, while the performance of electroless deposition of Ni-P alloy coating is also very excellent regardless of the low test cost and high efficiency [11][12][13][14][15]. Therefore, the process of electroless deposition of Ni-P alloy is adopted in this paper.…”

Section: Introductionmentioning

confidence: 99%

Study on Adhesion Properties and Process Parameters of Electroless Deposited Ni-P Alloy for PEEK and Its Modified Materials

Gao

Yang

et al. 2023

Coatings

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Polyetheretherketone (PEEK) and its fiber-reinforced materials are thermoplastic polymer materials with broad application prospects. Depositing Ni-P alloy on them can improve their poor conductivity and electromagnetic shielding performance, and further expand their application field. The application effect of the plated parts is significantly impacted by the bonding strength between PEEK and coating. The bonding strength between non-metallic substrate and coating is largely influenced by the surface characteristics of the substrate. Therefore, it is significant to study how the surface roughness of PEEK materials and the modified fibers in materials affect the adhesion of the coating. In this study, Ni-P alloy was electroless deposited on PEEK, 30% carbon-fiber-reinforced PEEK (CF30/PEEK), and 30% glass-fiber-reinforced PEEK (GF30/PEEK) with varying surface roughness. The influence of surface roughness and modified fibers on the coating adhesion was studied. Additionally, the effect of the concentrations of nickel sulfate, sodium hypophosphite, pH, and temperature on the deposition rate of the coating was investigated for the three materials. Based on the highest deposition rate, the process parameters were then optimized. The results demonstrated that as surface roughness increased, adhesion between substrate and coating first increased and then decreased. The surface roughness Ra of 0.4 μm produced the highest coating adhesion. Additionally, fiber-reinforced PEEK adhered to coatings more effectively than PEEK did. The mechanism of the difference in bonding strength between different PEEK-modified materials and coatings was revealed. The optimal process parameters were: nickel sulfate: 25 g/L, sodium hypophosphite: 30 g/L, pH: 5.0, and temperature: 70 °C.

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Section: Introductionmentioning

confidence: 99%

Study on Adhesion Properties and Process Parameters of Electroless Deposited Ni-P Alloy for PEEK and Its Modified Materials

Gao

Yang

et al. 2023

Coatings

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“…The scCO 2 molecules, during the alteration process, uniformly distribute modifier molecules on the surface with active groups and nanoparticles owing to their high diffusivity and low viscosity. Moreover, separating the nanoparticles or active groups after modification is straightforward since the density of scCO 2 is facilely regulated by operating temperature and pressure 35,36 . The surface modification of AF employing scCO 2 (supercritical carbon dioxide) is an effective tactic to strengthen their surface characteristics and ameliorate their performance in numerous demands as the modification of the surface using the scCO 2 system is a green, cost‐effective, energy‐efficient, and versatile approach that can support sustainable development (Figure 1i).…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, separating the nanoparticles or active groups after modification is straightforward since the density of scCO 2 is facilely regulated by operating temperature and pressure. 35,36 The surface modification of AF employing scCO 2 (supercritical carbon dioxide) is an effective tactic to strengthen their surface characteristics and ameliorate their performance in numerous demands as the modification of the surface using the scCO 2 system is a green, cost-effective, energy-efficient, and versatile approach that can support sustainable development (Figure 1i). 35,37,38 AF composite is extensively demanding in versatile sectors; per a report, the aramid fiber market is expected to increase with a 9.7% CAGR from 3.9 billion to 6.3 billion by 2026.…”

Section: Introductionmentioning

confidence: 99%

Recent advancement in surface modification of aramid fiber assisted by supercritical carbon dioxide

Patadiya,

Chougale,

Naebe

et al. 2023

Polymers for Advanced Techs

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The exceptional mechanical properties of aramid fibers make them a popular choice for high‐performance materials; despite that, their potential is limited due to their surface properties bonding energy and interfacial bonding strength with matrix materials. The enhanced resistance of poly‐aramid fibers (AFs) to severe surroundings and improved interlaminar adhesion in sandwich compounds with admirable mechanical characteristics are becoming a great challenge for various chemical and physical surface treatment techniques. Supercritical carbon dioxide (scCO2) is a popular and sustainable approach that can effectively bond and homogeneously deposit functional groups or nanoparticles and exhibit the excellent performance of fibber modification. This article examines aramid fibers' surface modification advancements using scCO2‐assisted techniques, including monomer grafting, impregnation, and functionalization with various functional groups and nanoparticles. Additionally, the article discusses the challenges faced in scCO2‐assisted aramid fiber modification and what the future holds for this technology.

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“…Ni-P-based electroless (EL) deposition is produced by auto-catalytic chemical reduction of Ni-cations obtained from the liquid solution of metallic salt using reducing agents [ 10 ]. The reducing agent is usually sodium hypophosphite (in this case: Ni-P) or sodium borohydride (in this case: Ni-B), depending upon the substrate composition [ 11 ]. EL deposition can process both electrically conductive and electrically non-conductive materials [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Electroless Ni-P-MoS2-Al2O3 Composite Coating with Hard and Self-Lubricating Properties

et al. 2022

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The work aimed to produce Ni-P-MoS2-Al2O3 on Al-7075 alloys with multiple attributes through an electroless (EL) plating route. The effects of additives (MoS2 and Al2O3) in the EL bath on the surface morphology, topography, hardness, composition (phase and elemental), roughness, wettability, and coating thickness were evaluated. Results indicate a substantial enhancement in microhardness of the EL-coated surfaces by 70% (maximum hardness = ~316 HV) using powders, and 30% (244 HV) without powders. The maximum coating thickness and water contact angle obtained with powders were 6.16 μm and 100.46°, respectively. The coefficient of friction for the samples prepared using powders was 0.12, and for the base material it was 0.18. The compositional analysis through EDS and XRD suggested the incorporation of a hard and lubricious layer on the EL-coated surface owing to the presence of different phases of Al, Mo, P, Zn, O, and S. Therefore, the resulting coating surfaces impart hardness, self-lubrication, hydrophobicity, and wear resistance simultaneously.

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The Importance of Electroless Metallic Build-Up on Surface Modified Substrates for Multifunctional Engineering Applications: A Recent Progress Update

Cited by 11 publications

References 126 publications

Study on Adhesion Properties and Process Parameters of Electroless Deposited Ni-P Alloy for PEEK and Its Modified Materials

Study on Adhesion Properties and Process Parameters of Electroless Deposited Ni-P Alloy for PEEK and Its Modified Materials

Recent advancement in surface modification of aramid fiber assisted by supercritical carbon dioxide

Electroless Ni-P-MoS2-Al2O3 Composite Coating with Hard and Self-Lubricating Properties

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