Study on wettability of plasma spray coated oxide ceramic for hydrophobicity

Mazumder, Anik; Alangi, Nagaraj; Sethi, S.; Prabhu, K. Narayan; Mukherjee, Jaya

doi:10.1016/j.surfin.2020.100591

Cited by 7 publications

(3 citation statements)

References 24 publications

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“…When a drop of polar liquid (water) is placed on a rough surface, two wetting states can occur (Fig. 14)-Wenzel state (the polar liquid drop penetrates downward into the roughness to establish perfect liquid-solid contact) and Cassie-Baxter state (the polar liquid drop is suspended on the peaks of roughness) [50,51]. Both Wenzel and Cassie-Baxter states can exhibit high wetting angle.…”

Section: Discussionmentioning

confidence: 99%

The influence of plasma-sprayed coatings on surface properties and corrosion resistance of 316L stainless steel for possible implant application

Woźniak

Staszuk

Reimann

et al. 2021

Archiv.Civ.Mech.Eng

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Herein, we analyzed the morphology of atmospheric plasma-sprayed (APS) coating on medical 316L stainless steel and its influence on the physical and electrochemical properties of implant application. Five types of coatings were examined: hydroxyapatite (HAp), titanium (Ti), zirconium (Zr), Ti/HAp and Zr/HAp. The base properties of the coatings were analyzed via chemical and phase composition, surface topography, surface wettability and in particular the corrosion resistance in Ringer solution in immersed conditions and potentiodynamic test, and EIS analysis. APS coating of pure HAp on 316L stainless steel showed poor cohesive bonding to the substrate material, whereas the application of Ti and Zr interlayer prior to HAp deposition improved surface morphology and coating properties. The beneficial effect of Ti and Zr interlayer under HAp layer on binding was demonstrated. HAp containing coatings (HAp, Ti/HAp and Zr/HAp) show Ca/P ratio greater than 1.8, which may positively influence the differentiation of osteogenic cells and good adhesion to bones. Among the studied materials, the composite coatings with Zr or Zr/HAp showed favorable physicochemical properties and the highest corrosion resistance in Ringer solution.

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Section: Discussionmentioning

confidence: 99%

The influence of plasma-sprayed coatings on surface properties and corrosion resistance of 316L stainless steel for possible implant application

Woźniak

Staszuk

Reimann

et al. 2021

Archiv.Civ.Mech.Eng

View full text Add to dashboard Cite

show abstract

“…Currently, hydrophobic ceramics are often produced by grafting of polymer agents or plasma deposition of rare earth oxides on the surface. − By using these surface treatments, the ceramics transform from their intrinsically hydrophilic nature to hydrophobic or even superhydrophobic (water contact angle: >150°). However, when suffering from scratches or bumps, the surficial functional skins of these hydrophobic ceramics are prone to be disrupted.…”

Section: Introductionmentioning

confidence: 99%

Molecular-Level Hybridized Hydrophobic Geopolymer Ceramics for Corrosion Protection

et al. 2023

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Hydrophobic ceramics with low surface energies have a broad range of applications in both industry and domestic fields. However, the common surface-treatment-based hydrophobic ceramics are usually vulnerable and easily lose functions due to surficial mechanical damages. To address this challenge, here we propose a new strategy to produce intrinsically hydrophobic ceramics by leveraging alkylated-geopolymerization. As proof-of-concept, we designed and synthesized an alkylatedgeopolymer (AGP) based ceramic with excellent waterproof performance and damage tolerance. Microstructure characterizations reveal that this organic−inorganic hybrid ceramic contains hybridized inorganic aluminosilicate networks and the alkylatedsilicate units at the molecular level, offering benefits of superior hydrophobicity and functional robustness. The geopolymerization-mediated synthetic route demonstrated here enables a facile access to robust hybrid coating materials for enduring protection of metallic surfaces from corrosion in thermal environments (<350 °C) with high humidity. This work bridges the gaps between the organosilicate polymers and the inorganic aluminosilicate ceramics and helps open new avenues for designing of new functional ceramics from the molecular scale by a clean and low-cost procedure.

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“…Currently, hydrophobic ceramics are often produced by grafting of polymer agents or plasma deposition of rare earth oxides on the surface [17][18][19] . By using these surface treatments, the ceramics transform from their intrinsically hydrophilic nature to hydrophobic or even super-hydrophobic (water contact angle: >150°).…”

Section: Introductionmentioning

confidence: 99%

Molecular level hybridized hydrophobic ceramics for corrosion protection

Ruan¹,

Chen

Zhang

et al. 2022

Preprint

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Hydrophobic ceramics with low surface energies have a broad range of applications in both industry and domestic fields. However, the common surface-treatment-based hydrophobic ceramics are usually vulnerable and easy to lose functions due to surficial mechanical damages. To address this challenge, here we propose a new strategy to produce intrinsically hybrid hydrophobic ceramics by leveraging alkylated-geopolymerization. As proof-of-concept, we designed and synthesized an alkylated-geopolymer (AGP) based ceramic with excellent waterproof performance and damage tolerance. Microstructure characterizations reveal that this organic-inorganic hybrid ceramic contains hybridized inorganic aluminosilicate networks and the alkylated-silicate units at the molecular scale, offering benefits of high hydrophobicity and functional robustness. The geopolymerization-mediated synthetic route demonstrate here enables a facile access to robust hybrid coating materials for enduring protection of metallic surfaces from corrosion in thermal environments (< 350°C) with high humidity. Furthermore, our work also opens new avenues for designing of new functional ceramics from the molecular scale by a clean and low-cost procedure.

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Study on wettability of plasma spray coated oxide ceramic for hydrophobicity

Cited by 7 publications

References 24 publications

The influence of plasma-sprayed coatings on surface properties and corrosion resistance of 316L stainless steel for possible implant application

The influence of plasma-sprayed coatings on surface properties and corrosion resistance of 316L stainless steel for possible implant application

Molecular-Level Hybridized Hydrophobic Geopolymer Ceramics for Corrosion Protection

Molecular level hybridized hydrophobic ceramics for corrosion protection

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