Properties of ZnO/ZnAl2O4 composite PEO coatings on zinc alloy Z1

Serdechnova, Maria; Blawert, Carsten; Карпушенков, С. А.; Karpushenkava, Larisa S.; Shulha, Tatsiana; Karlova, Polina; Vasilić, Rastko; Stojadinović, Stevan; Stojanović, Srna; Damjanović-Vasilić, Ljiljana; Heitmann, V.; Rabchynski, S. M.; Zheludkevich, Mikhail L.

doi:10.1016/j.surfcoat.2021.126948

Cited by 7 publications

(5 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, some part of PEO coating remains on the substrate after pull-off test due to formation of microstresses and cracks within the PEO layer. The obtained results are in a good agreement with the data presented in [24].…”

Section: Fundingsupporting

confidence: 91%

“…PEO coatings obtained in aluminate electrolytes can demonstrate improved functional properties due to the formation of ZnAl 2 O 4 /ZnO heterostructures [24]. Zinc aluminate (ZnAl 2 O 4 ) is a spinel type oxide which characterized a wide band gap (~3.8 eV), chemical and thermal stability, low surface acidity, high mechanical resistance, superior optical transmittance and high fluorescence efficiency [25,26].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Photoluminescent Coatings on Zinc Alloy Prepared by Plasma Electrolytic Oxidation in Aluminate Electrolyte

et al. 2023

View full text Add to dashboard Cite

Thick ZnO/ZnAl2O4 coatings were synthesized on zinc alloy Z1 substrates through plasma electrolytic oxidation (PEO) for different anodization times. The prepared coatings were characterized by scanning SEM, XRD, diffuse reflectance and photoluminescence spectroscopy in order to establish the relationship between their structural and optical properties and PEO processing parameters. Under different PEO processing conditions (anodization time—1–10 min and applied voltage—370 and 450 V) ceramic coatings with a mean thickness of 2–12 μm were prepared. XRD analysis explored the coating structure composed of zinc oxide (wurtzite) and zinc aluminate spinel. The content of ZnAl2O4 in the coatings grows with increasing the applied voltage and anodization time. Photoluminescence (PL) measurements showed that the PEO coatings have several bands in the visible and near-infrared regions associated with their composite structure. The PL spectra significantly depend on the PEO processing parameters due to varying ZnO and ZnAl2O4 content in the coatings. The insight in the relationship between the ZnAl2O4 structure and the photoluminescent properties of ZnO/ZnAl2O4 coatings has been provided using the combination of XRD and luminescence spectroscopy.

show abstract

Section: Fundingsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Photoluminescent Coatings on Zinc Alloy Prepared by Plasma Electrolytic Oxidation in Aluminate Electrolyte

et al. 2023

View full text Add to dashboard Cite

show abstract

“…• Investigating the mechanical properties and surface morphology of coated and uncoated materials. [11]. In this work, zinc is chosen as an alloy obtained from Viru Chemical Industries in Chennai, India, as shown in figure 1(a).…”

Section: Introductionmentioning

confidence: 99%

Hot deformation and fatigue behaviour of a zinc base doped biocompatible material: characterization of plasma spray coating on surface

Sonagiri,

2023

Surf. Topogr.: Metrol. Prop.

View full text Add to dashboard Cite

Biomaterials are natural or man-made substances put into the body to turn a living cell into a working organ. Bone tissue and biocompatibility are emerging as an alternative approach to regenerating bone due to some distinct advantages over autografting and allografting. This research aimed to fabricate a novel porous scaffold that can be utilized as a bone substitute. Zn-nHApx-Srx (x = 0, 3, 6, 9) were selected by different weight ratios and synthesized using the powder metallurgy method. The utilization of nanohydroxyapatite (Ca10(PO4)6(OH)2) is due to its excellent biocompatibility with the human body. Polylactic-co-glycolic acid (PLGA) is incorporated to get enhanced biological performance. Plasma spray coating was performed on a zinc substrate using pure and doped biohybrid composites calcined at 800 °C. The nanohybrid composites' tensile strength increased between 0.4 and 19.8 MPa by increasing Zn and Sr weight ratios. In addition, 3% Sr/2.5% Zn with 2% of nHAp-PLGA composite showed improved hardness, which is beneficial for resembling bone tissue and die-casting fittings in automobile manufacturing applications. Mechanical properties, FT-IR, hot deformation behaviour, and SEM techniques help us understand the behaviour of Zn-Sr-nHAp in a vial containing PLGA. The highest ultimate tensile strength of 182 MPa and improved flow softening behaviour are achieved in a coated Zn/6% (nHAp-Sr) mixture suitable for biodegradable implant applications.

show abstract

“…Surface modification is an impactful strategy to enhance the biocompatibility of the implant by controlling the release rate of zinc ions (Pathak & Pandey, 2020;Pezzato et al, 2020;Sheng et al, 2020;Serdechnova et al, 2021). For this purpose, many studies have been focused on the improvement of bioactivity and biodegradability via developing surface treatments, such as PEO coating, chemical conversion coating, electrochemical deposition coating, and polymer coating (Peng et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

In Vitro Study of Degradation and Cytocompatibility of Ceramics/PLA Composite Coating on Pure Zinc for Orthopedic Application

Tang

2022

Front. Bioeng. Biotechnol.

View full text Add to dashboard Cite

Zinc and its alloys are considered to be next-generation materials for fabricating absorbable biomedical devices. However, cytotoxicity has been reported to be associated with rapid degradation. To address these issues, a composite coating (PLA/Li-OCP) consisting of CaHPO4 conversion coating (Ca-P) and polylactic acid (PLA) decorated with Li-octacalcium phosphate particles was constructed on pure zinc. The immersion tests showed that the presence of Ca-P coating and PLA/Li-OCP coating on pure zinc could reduce the pH value. Compared with Ca-P coating, the introduction of the PLA/Li-OCP film on the Ca-P-coated samples could enhance the corrosion resistance, and there was one order of magnitude decrease in the corrosion current density. The cytocompatibility assay suggested that the PLA/Li-OCP coating favored the cell viability and upregulated the expression of related osteogenic-genes including RUNX2, OCN, and BMP. Therefore, the presence of the PLA/Li-OCP coating on pure zinc could effectively improve the degradation rate and cytocompatibility of pure zinc.

show abstract

Properties of ZnO/ZnAl2O4 composite PEO coatings on zinc alloy Z1

Cited by 7 publications

References 67 publications

Photoluminescent Coatings on Zinc Alloy Prepared by Plasma Electrolytic Oxidation in Aluminate Electrolyte

Photoluminescent Coatings on Zinc Alloy Prepared by Plasma Electrolytic Oxidation in Aluminate Electrolyte

Hot deformation and fatigue behaviour of a zinc base doped biocompatible material: characterization of plasma spray coating on surface

In Vitro Study of Degradation and Cytocompatibility of Ceramics/PLA Composite Coating on Pure Zinc for Orthopedic Application

Contact Info

Product

Resources

About