Zn-HA-TiO<sub>2</sub>nanocomposite coatings electrodeposited on a NiTi shape memory alloy

Mirak, Mohammad; Alizadeh, Morteza; Salahinejad, E.; Amini, Rasool

doi:10.1002/sia.5678

Cited by 15 publications

(5 citation statements)

References 39 publications

(52 reference statements)

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“…Unfortunately, the long-term use of NiTi alloy implants necessitates the improvement of their corrosion resistance and biocompatibility [5][6][7]. This goal might be achieved by modifying the alloy surface by protective coatings made of ceramics [8][9][10][11], polymers [12], metals [13], diamond-like carbon-DLC [14], or complex composite layers [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Functionalization of the NiTi Shape Memory Alloy Surface by HAp/SiO2/Ag Hybrid Coatings Formed on SiO2-TiO2 Glass Interlayer

2020

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The surface modification of NiTi shape memory alloys is a method for increasing their multi-functionalities. In our solution, hydroxyapatite powder was mixed with a chemically synthesized silicon dioxide/silver (nSiO2/Ag) nanocomposite in a different weight ratio between components (1:1, 5:1, and 10:1) and then electrophoretically deposited on the surface of the NiTi alloy, under various time and voltage conditions. Subsequently, uniform layers were subjected to heat treatment at 700 °C for 2 h in an argon atmosphere to improve the strength of their adhesion to the NiTi substrate. A change in linear dimensions of the co-deposited materials during the sintering process was also analyzed. After the heat treatment, XRD, Raman, and Scanning Electron Microscopy (SEM) + Energy Dispersive Spectrometer (EDS) studies revealed the formation of completely new composite coatings, which consisted of rutile and TiO2-SiO2 glass with silver oxide and HAp particles that were embedded into such coatings. It was found that spalling characterized the 1:1 ratio coating, while the others were crack-free, well-adhered, and capable of deformation to 3.5%. Coatings with a higher concentration of nanocomposite were rougher. Electrochemical impedance spectroscopy (EIS) tests in Ringer’s solution revealed the capacitive behavior of the material with high corrosion resistance. The kinetics and susceptibility to pitting corrosion was the highest for the NiTi electrode that was coated with a 5:1 ratio HAp/nSiO2/Ag hybrid coating.

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Section: Introductionmentioning

confidence: 99%

Functionalization of the NiTi Shape Memory Alloy Surface by HAp/SiO2/Ag Hybrid Coatings Formed on SiO2-TiO2 Glass Interlayer

2020

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“…To overcome these problems, many methods have been used such as ultrasonic treatment, adding surfactants, and using electrostatic or radio frequency waves to enhance TiO 2 dispersion on the HA surface, and increasing the surface energy for HA/TiO 2 coatings. [13][14][15][16] In this study, the sodium dodecylbenzenesulfonate (SDBS) surfactant was selected as a transition layer between TiO 2 nanoparticles and HA powder, and can be easily removed from the coatings owing to the effect of the thermal treatment. This will improve the performance of the combination between TiO 2 and HA.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of bioactive HA/TiO₂ coating nanoparticles for biomedical applications by using sodium dodecylbenzenesulfonate surfactant

Quy¹,

Kim²,

Kim³

et al. 2018

Jpn. J. Appl. Phys.

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Hydroxyapatite/titanium dioxide (HA/TiO 2 ) composite coatings have been researched for biomedical applications because of their many favorable properties. Recently, TiO 2 -coated HA has garnered much attention in bone regeneration. In this study, we prepared HA-coated TiO 2 composites using sodium dodecylbenzenesulfonate (SDBS) surfactant to enhance dispersion and increase the surface energy while avoiding protein denaturation. The coated surfaces were determined by X-ray diffraction, scanning electron microscopy, and energy dispersive X-ray analysis. Their hydrophilic behavior was characterized using a contact angle analyzer. After coating with TiO 2 and TiO 2 /SDBS, the surfaces were easily wetted resulting in a remarkable reduction in contact angle to 24.5 ± 3°and 0°. HA/TiO 2 coatings were successfully synthesized using SDBS to achieve better TiO 2 dispersion and good wettability by the straightforward method. HA/TiO 2 (0.1%)/SDBS coating showed remarkably lower water contact angle proving that TiO 2 can be reduced to 0.1% without the concern of nanotoxicity.

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“…Due to the superior damping characteristics and energy absorption capacity, the Ni-Ti porous structures often experience cyclic loading during practical applications. For this reason, fatigue properties have a determining influence on the practical application of Ni-Ti lattice structures [7]. The fatigue behavior of Ni-Ti (SMAs) is mainly divided into functional fatigue and structural fatigue [8,9].…”

Section: Introductionmentioning

confidence: 99%

New Insights into the Mechanical Properties, Functional Fatigue, and Structural Fatigue of Ni-Ti Alloy Porous Structures

Tang

Liu

2023

Metals

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Ni-Ti shape memory alloys (SMAs) are widely noticed and have captured great interest due to their unique shape memory effect and super elasticity. Porous Ni-Ti SMAs have the typical characteristics of both porous metals as well as shape memory alloys. Because of the uneven stress distribution, cyclic loading has a more significant effect on the phase transformation and plastic deformation of Ni-Ti porous compared with Ni-Ti bulk. This paper overviews the structural and functional fatigue experiments and numerical simulation progress of Ni-Ti porous. The factors affecting the fatigue performance of the Ni-Ti lattice structure and the methods for enhancing its fatigue performance are elaborated. More importantly, the point of the coupling analysis of structural fatigue performance and functional fatigue performance is proposed for the study of porous Ni-Ti shape memory alloys.

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Zn-HA-TiO₂nanocomposite coatings electrodeposited on a NiTi shape memory alloy

Cited by 15 publications

References 39 publications

Functionalization of the NiTi Shape Memory Alloy Surface by HAp/SiO2/Ag Hybrid Coatings Formed on SiO2-TiO2 Glass Interlayer

Functionalization of the NiTi Shape Memory Alloy Surface by HAp/SiO2/Ag Hybrid Coatings Formed on SiO2-TiO2 Glass Interlayer

Characteristics of bioactive HA/TiO₂ coating nanoparticles for biomedical applications by using sodium dodecylbenzenesulfonate surfactant

New Insights into the Mechanical Properties, Functional Fatigue, and Structural Fatigue of Ni-Ti Alloy Porous Structures

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Zn-HA-TiO2nanocomposite coatings electrodeposited on a NiTi shape memory alloy

Cited by 15 publications

References 39 publications

Functionalization of the NiTi Shape Memory Alloy Surface by HAp/SiO2/Ag Hybrid Coatings Formed on SiO2-TiO2 Glass Interlayer

Functionalization of the NiTi Shape Memory Alloy Surface by HAp/SiO2/Ag Hybrid Coatings Formed on SiO2-TiO2 Glass Interlayer

Characteristics of bioactive HA/TiO2 coating nanoparticles for biomedical applications by using sodium dodecylbenzenesulfonate surfactant

New Insights into the Mechanical Properties, Functional Fatigue, and Structural Fatigue of Ni-Ti Alloy Porous Structures

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Product

Resources

About

Zn-HA-TiO₂nanocomposite coatings electrodeposited on a NiTi shape memory alloy

Characteristics of bioactive HA/TiO₂ coating nanoparticles for biomedical applications by using sodium dodecylbenzenesulfonate surfactant