Article
Nanoscience & Nanotechnology
Armaghan Naderi, Bin Zhang, Jorge A. Belgodere, Kaushik Sunder, Genevieve Palardy
Summary: Hydroxyapatite (HA)-coated metals show potential for bone replacement and regeneration. This study designed biocompatible composite implants using a metal mesh substrate and HA coating. Experiments showed different coating methods, substrate materials, and mesh characteristics affected implant performance, but had no impact on HA coating crystal structure or shape.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Diana Horkavcova, Quentin Doubet, Gisele Laure Lecomte-Nana, Eva Jablonska, Ales Helebrant
Summary: The sol-gel method is extensively used in the medical field, such as in the preparation of coatings on metal implants. In this study, coatings doped with silver and hydroxyapatite were applied on titanium samples, showing antibacterial properties and promoting bone-like hydroxyapatite precipitation. The interaction of the coatings with simulated body fluid was also studied, revealing changes in Ca2+ and (PO4)3- ions concentrations and pH values.
Article
Materials Science, Ceramics
Sherif Elbasuney, Ibrahim Naeem, Mohamed Mokhtar, Mohamed Sheashea, Mahmoud Zorainy, Gharieb S. El-Sayyad, Mohamed Gobara
Summary: A novel Cr-substituted hydroxyapatite (Cr-HA) nanoparticles were synthesized using continuous hydrothermal technique. The synthesized material was embedded into a silica sol-gel matrix and applied on an AA2024 substrate to evaluate its corrosion inhibition efficiency. The results showed the formation of Cr-HA nanorods with a uniform distribution of Ca and Cr ions within the crystal structure. The Cr-HA sol-gel coating exhibited prolonged pitting resistance and self-healing properties in a corrosive media.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Chemical
Airi Tago, Noriko Yamauchi, Kouichi Nakashima, Daisuke Nagao, Yoshio Kobayashi
Summary: A simple method has been developed to control the oxidation and aggregation of metallic particles, specifically metallic nickel particles in this study, through silica-coating. The oxidation of metallic particles was successfully controlled by the silica coating, and the Ni/SiO2 particles exhibited soft magnetic behavior at different annealing temperatures.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Naiyer Shokri, Mir Saman Safavi, Mohamadreza Etminanfar, Frank C. Walsh, Jafar Khalil-Allafi
Summary: NiTi shape memory alloy has broad applications in orthopedics and dentistry due to its superelasticity, shape memory effect, high corrosion performance, and biocompatibility. New horizons for biomedical applications of NiTi can be opened by improving its corrosion resistance and surface characteristics through appropriate pre-treatments. The type of pre-treatment influences the final properties of coated NiTi, with different treatments showing different advantages such as superior corrosion behavior, in-vitro bioactivity, or hydrophilicity. The deposition of a highly crystalline nano-HAp coating enhances the final characteristics of pre-treated NiTi, leading to superior corrosion resistance compared to mechanically polished NiTi.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Engineering, Multidisciplinary
Eren Yilmaz
Summary: Surface treatments on titanium and its alloys are crucial for improving bio properties, particularly for implant applications. The calcium phosphate/chitosan coating showed antibacterial properties and suitable surface roughness for bone development, making it a potential choice for dental and orthopedic implants.
JOURNAL OF BIONIC ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Zeinab Chehadi, Mohammed Bouabdellaoui, Mehrnaz Modaresialam, Thomas Bottein, Marco Salvalaglio, Monica Bollani, David Grosso, Marco Abbarchi
Summary: Fabrication and scaling of disordered hyperuniform materials are still facing challenges, but a hybrid top-down/bottom-up approach has been demonstrated for faithful reproduction of such materials. The antireflective character of titania structures on silicon shows potential applications, opening up possibilities for large-scale implementation of metal oxide-based nano- and microarchitectures in wet chemical assembly.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Airi Tago, Masato Yanase, Noriko Yamauchi, Kouichi Nakashima, Daisuke Nagao, Yoshio Kobayashi
Summary: A simple method was developed to suppress the oxidation and aggregation of metallic particles by coating metallic nickel particles with silica shells. The coated particles exhibited controlled oxidation and aggregation behavior, as well as paramagnetic properties after annealing in air.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Materials Science, Coatings & Films
M. Lepicka, S. Barros-Silva, N. Licciardello, A. Cortez, P. Gobbo, M. Sampaio, J. Cortez, H. Cortez, F. Alves, P. Lipowicz, Yu Kolen'ko, P. P. Freitas
Summary: To enhance the long-term stability of a dental implant, a protective coating containing TiO2 nanoparticles is proposed for selected parts using GPTMS/TEOS sol-gel coating. This coating effectively improves the anti-loosening properties of the abutment screw and achieves high locking efficacy and anti-wear performance due to its advantageous mechanical properties. The incorporation of TiO2 NPs in the polymeric backbone of the coating improves resistance to hydrolytic degradation and reduces hardness and Young modulus.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Borbala Tegze, Emoke Albert, Boglarka Diko, Norbert Nagy, Adel Racz, Gyorgy Safran, Attila Sulyok, Zoltan Horvolgyi
Summary: In this study, mesoporous TiO2 sol-gel coatings were modified with silver using two methods, and the effects of silver modification on the functional properties were investigated. The samples made with the impregnation method showed better functional properties despite having significantly lower silver content. The pore structure influenced the Ag content achieved by the impregnation method, and subsequently affected their photoactivity.
Review
Chemistry, Physical
Daniel Alves Barcelos, Maria Clara Goncalves
Summary: Visible-light-photoactive titania micro- or nanoparticles have shown great potential in various industrial applications, especially in environmental remediation. The sol-gel method, with its simplicity, versatility, and green chemistry approach, has been successfully employed for synthesizing crystalline and amorphous TiO2 micro- and nanoparticles. This short review aims to discuss the recent advancements in visible-light-photoactive titania-based nanoparticles for environmental remediation. Co-doping of titania, titania composite design, and the use of amorphous networks have been the most commonly used strategies to achieve this goal. Finally, predictions about the future developments in these fields are provided.
Article
Chemistry, Applied
N. Aslan, B. Aksakal
Summary: Hybrid coatings of rGO-reinforced hydroxyapatite were successfully applied to porous Ti64 alloys using the sol-gel method, revealing that 0.5 wt% and 1.0 wt% rGO reinforcements could effectively prevent crack formation on Ti64 surfaces. High adhesion strength values were achieved at low porosities with these reinforcement levels.
JOURNAL OF POROUS MATERIALS
(2021)
Article
Materials Science, Ceramics
Ozkan Gokcekaya, Celaletdin Ergun, Thomas J. Webster, Takayoshi Nakano
Summary: This study synthesized a group of boronated hydroxyapatite (BHA) crystals by altering the precursor chemistry and found that BHA synthesized by the gas-phase deposition method showed better biocompatibility in terms of cell adhesion than pure HA. This has potential implications for improving orthopedic applications.
CERAMICS INTERNATIONAL
(2023)
Article
Optics
Magdalena Zieba, Cuma Tyszkiewicz, Katarzyna Wojtasik, Krystian Pavlov, Pawel Chaber, Ewa Gondek, Jacek Niziol, Roman Rogozinski, Pawel Kielan, Pawel Karasinski
Summary: This work presents a study on low-loss waveguide layers for planar evanescent wave sensor applications. Crack-free SiOx:TiOy composite layers with refractive indices of approximately 1.65 were fabricated using a sol-gel method and dip-coating technique. The fabricated layers exhibited good waveguide properties and optical homogeneity.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Engineering, Biomedical
E. M. Mahmoud, M. Sayed, M. Awaad, S. T. El-Zomor, M. Blum, A. Killinger, R. Gadow, S. M. Naga
Summary: This study demonstrated that implantation of a bHA-coated Ti/Al alloy device in dogs' femur bones is safe and promotes bone formation and healing. The coated alloy was completely absorbed within 90 days without any toxic effects.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
(2021)
Article
Materials Science, Ceramics
Jose D. Avila, Amit Bandyopadhyay
Summary: Directed energy deposition (DED) was utilized to produce niobium carbide (NbC)-reinforced Ti6Al4V (Ti64) metal-matrix-composite (MMC) structures, with the objective of enhancing Ti64's wear and oxidation resistance. Results indicated that the addition of NbC particles aided in increasing Ti64's resistance to plastic shear and led to a reduction in specific wear rate.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2022)
Review
Materials Science, Multidisciplinary
Amit Bandyopadhyay, Kellen D. Traxel, Susmita Bose
Summary: The challenging task of emulating the unique combination of structural, compositional, and functional gradation found in natural materials has been facilitated by recent innovations in additive manufacturing (AM) or 3D Printing (3DP). These techniques enable the creation of structures with variations in material composition, structure, and performance, giving manufacturers an edge in designing components for highly-specialized applications in different industries.
MATERIALS SCIENCE & ENGINEERING R-REPORTS
(2021)
Article
Engineering, Biomedical
Sushant Ciliveri, Amit Bandyopadhyay
Summary: This study evaluated the mechanical properties of additively manufactured porous Ti6Al4V structures under compression and shear loading. The results showed that shear behavior is more sensitive to variations in cell size, while elastic modulus is more sensitive to changes in strut size. The study also found that a pore size of 670 μm demonstrated the highest osteoblast cell viability and bacterial cell viability was higher in porous structures compared to dense Ti.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Amit Bandyopadhyay, Susmita Bose, Roger Narayan
Summary: This article reviews the impact of technological development on the manufacturing of biomedical devices and discusses the progress and regulatory issues of 3D printing biomaterials and medical devices.
Article
Nanoscience & Nanotechnology
David Svetlizky, Baolong Zheng, Alexandra Vyatskikh, Mitun Das, Susmita Bose, Amit Bandyopadhyay, Julie M. Schoenung, Enrique J. Lavernia, Noam Eliaz
Summary: Directed energy deposition (DED) has become an important branch of additive manufacturing (AM) and is widely used in the design and fabrication of various materials. Successful DED operation requires a good understanding of critical phenomena such as laser-material interactions, alloy solidification, welding metallurgy, and microstructure-mechanical properties relations. This comprehensive review focuses on materials design via DED, including a survey of different compositions and highlights the challenges and opportunities in this area.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Coatings & Films
Arjak Bhattacharjee, Amit Bandyopadhyay, Susmita Bose
Summary: Titanium alloys have excellent fatigue and corrosion resistance, high strength to weight ratio, and poor osseointegration ability, which can lead to implant loosening. Hydroxyapatite coating on titanium surfaces is commonly used to enhance osseointegration. The addition of zinc ions and fluoride improves the biological properties of hydroxyapatite. Parametric optimizations are used to fabricate zinc and fluoride doped hydroxyapatite-coated titanium, resulting in coatings with optimized thicknesses. The doped coatings show higher antibacterial efficacy and osteoblast viability compared to pure hydroxyapatite-coated samples. These coatings have potential applications in load-bearing implants for revision surgeries and immune-compromised patients.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Kellen D. Traxel, Amit Bandyopadhyay
Summary: The desire for higher application temperatures and complex geometries for metallic materials has driven significant development in additive manufacturing (AM) of metal-ceramic composites. However, there is limited understanding of the process-microstructure-properties relationships for these materials and processing strategies. In this study, the processing window and high-temperature oxidation performance of an in situ reactive, oxidation-resistant titanium metal-matrix composite reinforced with boron nitride (BN) and boron carbide (B4C) were investigated via selective laser melting (SLM) to understand the effects of processing parameters on the in situ reactive characteristics and their influence on build reliability and high-temperature oxidation performance. Process optimization resulted in composites with high relative density and improved high-temperature oxidation resistance compared to the base material.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Review
Engineering, Manufacturing
Amit Bandyopadhyay, Yanning Zhang, Bonny Onuike
Summary: Bimetallic structures are in high demand for current industrial applications due to their unique properties. However, welding techniques face challenges in joining dissimilar metals, leading to heat-affected zone management and brittle intermetallic phase issues. Metal additive manufacturing (AM) has emerged as a promising solution for processing bimetallic structures. This review provides insights into various processing strategies, challenges, and future directions for the implementation of AM technologies in bimetallic structures.
VIRTUAL AND PHYSICAL PROTOTYPING
(2022)
Article
Materials Science, Ceramics
Ali Afrouzian, Kellen D. Traxel, Amit Bandyopadhyay
Summary: In this study, DED-based AM was used to process Martian regolith-Ti6Al4V composites to investigate their processability and properties. The results showed that the surface roughness and hardness of the composites increased with the weight percentage of Martian regolith, while maintaining similar abrasive wear performance to Ti6Al4V. The study demonstrated the potential of laser-based AM for fabricating Ti64-Martian regolith composites with comparable properties.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2022)
Article
Engineering, Manufacturing
Yanning Zhang, Cory Groden, E. Nyberg, A. Bandyopadhyay
Summary: Bimetallic structures of Ti6Al4V-W7Ni3Fe were fabricated using directed energy deposition-based additive manufacturing. The research demonstrates the ability to control the mechanical and thermal performance of the bimetallic structures, with higher thermal conductivity and variable failure strain compared to pure Ti6Al4V.
VIRTUAL AND PHYSICAL PROTOTYPING
(2023)
Review
Materials Science, Multidisciplinary
Amit Bandyopadhyay, Indranath Mitra, Stuart B. Goodman, Mukesh Kumar, Susmita Bose
Summary: The increasing demand for joint replacement surgeries, musculoskeletal repairs, and orthodontics worldwide drives the need for evolving technologies in healthcare. Although metallic orthopaedic materials have a shared application history with the aerospace industry, their suitability in bone tissue replacements and regenerative therapies remains unchallenged due to their superior mechanical properties. However, improvement in biocompatibility is crucial for the development of the next generation of metallic biomaterials.
PROGRESS IN MATERIALS SCIENCE
(2023)
Review
Engineering, Manufacturing
Amit Bandyopadhyay, Indranath Mitra, Jose D. Avila, Mahadev Upadhyayula, Susmita Bose
Summary: Porous and functionally graded materials have wide applications in biomedical devices, especially in orthopedic and dental implants, due to their desirable mechanical, corrosive, and biocompatible properties. Among various porous materials, porous polymers lack mechanical strength, porous ceramics are brittle, while porous biocompatible metals show tailorable strength and toughness. This review discusses and compares different manufacturing methods for porous or functionally graded metals, exploring their effects on microstructure, composition, porosity, biocompatibility, and mechanical properties. The understanding gained from these investigations in bone implant applications can also be extended to other devices beyond the biomedical field.
INTERNATIONAL JOURNAL OF EXTREME MANUFACTURING
(2023)
Article
Engineering, Biomedical
Masud Rana, Santanu Karmakar, Amit Bandyopadhyay, Amit Roychowdhury
Summary: This paper presents an approach for designing patient-specific implants with inhomogeneous porosity, which can effectively solve the problem of stress shielding in orthopaedic implants. By using orthotropic auxetic structures and computed optimization, the proposed approach reduced stress shielding and improved osseointegration.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Engineering, Biomedical
Ali Afrouzian, Amit Bandyopadhyay
Summary: This study used directed energy deposition (DED) as an additive manufacturing technique to create ceramic-reinforced composites of Ti6Al4V with hydroxyapatite, alumina, and silicon nitride. The composites had tailored microstructures to improve bio-tribological and antibacterial properties. Different composites were made with various ceramic reinforcements, and microstructural observations showed good bonding and increased hardness. The Si3N4-added composites also demonstrated antibacterial response against Staphylococcus aureus. These multifunctional ceramic-reinforced composites are suitable for biomedical devices like hip implants.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Multidisciplinary Sciences
Lile Squires, Ethan Roberts, Amit Bandyopadhyay
Summary: This study demonstrates a complex radial interface concept with in situ mechanical interlocking, resulting in a prestressed compressive effect. The difference in thermal expansion coefficient between stainless steel and mild steel creates residual stresses. The bimetallic structures show a significant improvement in compressive strength compared to monolithic structures.
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Coatings & Films
Yanchun Xie, Xiaodong Wang, Shenshen Cui, Jiali Hu, Yongcun Wei, Yi Lian, Anwu Xuan, Bin Yu, Erlin Zhang
Summary: In this study, Ti-xFe (x = 3,5,9 wt%) alloys were surface modified by micro-arc oxidation (MAO) to improve their antimicrobial properties and biocompatibility. The results showed that increasing the oxidation voltage greatly enhanced the roughness and hydrophilicity of Ti-xFe-MAO alloys. The Ti-xFe alloys micro-arc oxidized at 250 V and 300 V exhibited improved corrosion resistance and excellent antimicrobial and cytocompatibility properties, making them suitable for orthopedic implant materials.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuting Hao, Zuoyan Ye, Lili Wang, Minheng Ye, Hui Dong, Chao Wang, Yunchen Du
Summary: This study focuses on the modification of PEO coatings on Ta-12W alloy using NH4F additive. The results show that ultra-low porosity coatings can be prepared by optimizing the NH4F content. The formation process of specific structures on the coating surface is discussed, and the effects of NH4F concentration and treatment duration on coating characteristics are investigated.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuanzhuo Liu, Linjiang Chai, Tao Yang, Chaodan Hu, Chuanmei Wang, Guoqiang Xi
Summary: By employing a pulsed laser, laser cladding was performed on IN718 alloy pre-coated with CrCoNi-TiC/SiC powders and three defect-free coatings were successfully prepared. The addition of TiC and SiC powders generated fine carbides dispersed in the coatings and led to changes in grain and substructure morphologies, resulting in increased hardness and wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
M. Ghaemi, A. Lopez-Cazalilla, K. Sarakinos, G. J. Rosaz, C. P. A. Carlos, S. Leith, S. Calatroni, M. Himmerlich, F. Djurabekova
Summary: The use of high-power impulse magnetron sputtering can result in dense and uniform niobium films on all surfaces of superconducting rf cavities, as simulated and investigated in this study.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Jiaheng Du, Xinli Fan, Dongqin Xiao, Wuxiang Wang, Yiran Yin, Zhong Li, Kui He, Yanfei Tan, Jiyuan Yan, Gangli Liu, Ke Duan
Summary: This study investigated the electrophoretic deposition (EPD) of magnesium oxide (MgO) coatings on micro-arc oxidized titanium (MAO-Ti) and evaluated their in vitro antibacterial properties and biocompatibility. The results showed that MgO coatings significantly reduced bacterial numbers and biofilm formation, while also demonstrating good cytocompatibility and induction of osteoblast mineralization.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Samiksha Moharana, Yuichi Otsuka, R. Gnanamoorthy
Summary: The addition of titania to HAp coatings improves their wear resistance and reduces damage to titanium implants caused by debris generation. This study evaluates the fretting wear resistance of titania-added HAp suspension plasma spray coating and finds that it exhibits reduced friction coefficient and increased wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Li-Ping Wu
Summary: The functional hazenite coating deposited on AZ31 Mg alloy showed improved roughness and hydrophilicity, enhanced biocompatibility, reduced degradation rate, and decreased susceptibility to stress corrosion cracking.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Ning Tian, Delei Xu, Jinfei Wei, Bucheng Li, Junping Zhang
Summary: This study reports the preparation of a superhydrophobic and anti-bacterial fabric for face masks. The fabric exhibits high superhydrophobicity and excellent moisture resistance, enabling functionality effectiveness in cold weather conditions. The fabric also demonstrates remarkable anti-bacterial activity against E. coli, attributed to the synergistic effect of superhydrophobicity and embedded ZnO nanoparticles. This superhydrophobic anti-bacterial fabric holds great potential for various practical applications in personal protective equipment, healthcare, and disease prevention.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Katharina Beck, Anke S. Ulrich, Andreas K. Czerny, Emma M. H. White, Martin Heilmaier, Mathias C. Galetz
Summary: Refractory metal based alloys have great potential as structural materials for high-temperature applications due to their high melting points. However, they are prone to catastrophic oxidation at around 700 degrees C. This study investigated the effect of aluminium diffusion coatings on the oxidation resistance of pure molybdenum, niobium, tantalum, and tungsten. The results showed that the aluminization improved the oxidation behavior and decreased the oxide growth rate for molybdenum and tantalum.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Wenwen Shuai, Haijun Dou, Zhichen Guan, Wei Qian, Zhibao Li, Yinqun Hua, Jie Cai
Summary: This study synthesized (Y1-xLax)3Al5O12 (x = 0, 0.1, 0.2, 0.3) materials by doping lanthanum ions, and found that the doped materials exhibited improved mechanical properties and thermal expansion coefficient, as well as enhanced resistance to CMAS corrosion. These materials have potential applications.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Xianglei Liu, Jiahui Ding, Wanbo Hou, Xinhao Shi, Tao Feng, Xiangyuan Meng, Shifeng Wen, Mingde Tong, Zhufeng Yue
Summary: A composite coating was developed to improve the adhesion, wear resistance, and corrosion resistance, which exhibited significant enhancements in these properties.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hongxuan Xing, Jidong Li, Xianwei Hu, Liang Tian, Renyun Zhang, Yiyong Wang
Summary: By depositing a Cu/Co-Mo corrosion-resistant plating layer on the surface of 6061 Al alloy, the bonding strength between the alloy and the plating layer can be improved and the corrosion resistance can be enhanced. The composite coating forms an obvious three-layer structure with Co-Mo coating exhibiting amorphous characteristics and Co3Mo phase composition. The composite coating improves the corrosion resistance and hardness of the substrate, effectively protecting the 6061 Al alloy.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Fan Yang, Debin Wang, Tianrun Li, Baijun Yang, Suode Zhang, Jianqiang Wang
Summary: The impact-corrosion behavior of monolayer and hierarchical Fe-based amorphous coatings fabricated by HVAF was investigated in 3.5 wt% NaCl solution. The monolayer coating exhibits corrosion failure with increased impact energy, while the hierarchical coating shows improved resistance. However, at high impact energies, both coatings experience corrosion degradation.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Shoaib Ahmad, Muddasir Nawaz, Solaiman Mohammad, R. A. Shakoor, Ramazan Kahraman, Talal Mohammed Al Tahtamouni
Summary: This research presents a novel self-healing anti-corrosion composite coating that demonstrates higher inhibition efficiency and self-healing effect, providing protection for metallic structures against corrosive environments.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hui-Wen Peng, Chun-Hway Hsueh
Summary: A series of (CoCrNi)100-x-ySixNdy medium entropy alloy films with manipulated metalloid element, Si, and rare earth element, Nd, were synthesized using magnetron three-target co-sputtering. The films showed different structures and mechanical properties with varying Si and Nd contents. The optimized mechanical properties were observed in the film with Si0.61Nd5.14, attributed to precipitation strengthening and grain refinement.
SURFACE & COATINGS TECHNOLOGY
(2024)