Article
Chemistry, Physical
Sivan Sela, Konstantin Borodianskiy
Summary: Zirconium alloys are bioinert materials widely used in biomedical applications, and increasing their bonding with human tissues is a major research focus. This study presents a promising approach of plasma electrolytic oxidation (PEO) surface treatment in molten salt. PEO creates a highly adhesive surface to the bioenvironment, and processing in molten salt electrolyte reduces impurities on the surface. The synthesized ZrO2 coatings showed improved biocompatibility, microhardness performance, and corrosion resistance.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Lang Yu, Pingping Jia, Yunpeng Song, Bocheng Zhao, Yaokun Pan, Jingtao Wang, Hongwei Cui, Rui Feng, Hui Li, Xiaoli Cui, Zengli Gao, Xiaoying Fang, Lijuan Zhang
Summary: This study investigated the effects of ceramic coatings with carbon nanotubes on high silicon aluminum alloy, revealing that CNTs participate in the formation and growth of the coatings, regulate the microstructure, and affect the properties including electrochemical corrosion and thermal conductivity.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Chaohui Tu, Xuanyu Chen, Cancan Liu, Deye Li
Summary: In this study, white thermal control coatings were produced on a 6061 Al alloy using plasma electrolytic oxidation (PEO) with the addition of K2ZrF6. The addition of K2ZrF6 significantly enhanced the thickness of the coatings and altered the growth mechanism, leading to a combination of inward and outward growth. The coatings exhibited improved adhesion, thermal shock resistance, and altered phase composition, with tetragonal zirconia (t-ZrO2) and monoclinic zirconia (m-ZrO2) being dominant. Additionally, the increase in K2ZrF6 concentration resulted in higher roughness, lower absorbance, and higher emissivity.
Article
Materials Science, Multidisciplinary
Zining Yang, Weize Wang, Shujuan Deng, Huanjie Fang, Ting Yang, Lubin Wang
Summary: Gadolinium zirconate coated with toughened layers (GZ/YSZ and GSZC) exhibit significantly improved fracture toughness and erosion resistance, demonstrating superior performance compared to traditional GZ coatings in thermal barrier applications. Results from thermal shock tests confirmed their exceptional properties in terms of fracture toughness and erosion resistance.
Article
Materials Science, Coatings & Films
Bruno Leandro Pereira, Carlos Mauricio Lepienski, Viviane Seba, Michael J. D. Nugent, Ricardo Torres, Pedro Akira Bazaglia Kuroda, Carlos Roberto Grandini, Paulo Soares
Summary: This study investigated the plasma electrolytic oxidation (PEO) of niobium and niobium-titanium alloys with multiple steps. The results showed that the PEO process reduced the elastic moduli and improved the surface cell viability. Treatments performed in electrolytes containing phosphate ions exhibited better performance in cytocompatibility tests.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Physical
Wen Wang, Chang Xin, Zaiqiang Feng, Gang Li, Ruizhu Zhang, Junhua Hu, Mingqi Tang, Yahui Liu, Wei Zhang
Summary: This study investigated the influence of niobium carbide (NbC) incorporation on the structure and properties of Microarc Oxidation (MAO) coatings prepared on Ti alloy and Al alloy. The results showed that adding NbC particles improved the forming speed and compactness of the MAO coatings, resulting in significantly enhanced frictional property and corrosion resistance.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Physical
Wen Wang, Chang Xin, Zaiqiang Feng, Gang Li, Ruizhu Zhang, Junhua Hu, Mingqi Tang, Yahui Liu, Wei Zhang
Summary: The influence of niobium carbide (NbC) incorporation on the structure and properties of Microarc Oxidation (MAO) coatings on Ti alloy and Al alloy was investigated. Adding NbC particles to the solution improved the forming speed and compactness of the MAO coatings, resulting in enhanced frictional property and corrosion resistance.
SURFACES AND INTERFACES
(2022)
Review
Materials Science, Multidisciplinary
Navid Attarzadeh, Chintalapalle V. Ramana
Summary: Recent research has focused on designing ceramic coatings for zirconium-based substrates with excellent surface properties for modern technologies. The Plasma Electrolytic Oxidation (PEO) coating is an environmentally friendly wet coating method that can be tailored by changing parameters, electrolyte composition, and substrate alloying elements to meet various industry demands. The review emphasizes understanding PEO growth mechanisms and the impact of process parameters on oxide layer formation and microstructural properties for applications in chemical, electronics, and energy technologies.
Article
Materials Science, Coatings & Films
Alexander Sobolev, Michael Zinigrad, Konstantin Borodianskiy
Summary: The PEO method in molten salt electrolyte forms titanium oxide coatings, increasing polarization resistance and exhibiting high hydrophobicity for the alloy.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Physical
D. W. Ding, Jing Tan, A. H. Cai, Y. Liu, H. Wu, Q. An, P. W. Li, Yan Zhang, Qing Yang
Summary: This study systematically investigated the effects of Ti microalloying on the glass forming ability, physical, and chemical properties of Zr-based bulk metallic glasses. It was found that the addition of 0.3at% Ti had the greatest impact on the glass forming ability and mechanical properties. Ti lowered the glass transition temperature, increased plasticity and strength, and influenced the corrosion behavior, leading to increased pitting corrosion severity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Coatings & Films
G. H. Oh, J. K. Yoon, J. Y. Huh, J. M. Doh
Summary: In this study, a hybrid method was used to generate a continuous thin alumina coating layer on the surface of Al6061 alloy. The PEO coating layer exhibited the highest density and corrosion resistance at a unipolar frequency of 400 Hz.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Chemistry, Physical
Zhe R. Liu, Fei Pei, Li Chen, Paul H. Mayrhofer
Summary: Ti-Al-Si-N coatings exhibit superior mechanical properties and thermal stability. The addition of Si improves the hardness and thermal stability of the coatings, and enhances their oxidation resistance. Si and Al content have a significant impact on the structure, stability, and oxidation behavior of the coatings.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Coatings & Films
Nastaran Barati, Jiechao Jiang, Efstathios I. Meletis
Summary: In this study, alumina-zirconia nanocomposite coatings were prepared on a 7075 aluminum alloy using plasma electrolytic oxidation. The coatings consisted of gamma-, t- and alpha-alumina and tetragonal zirconia, and were composed of multiple sub-layers. The formation of alumina occurred in the early stages of the process, while the crystallization and incorporation of zirconia occurred in the later stages.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Ruzil Farrakhov, Olga Melnichuk, Evgeny Parfenov, Veta Mukaeva, Arseniy Raab, Vadim Sheremetyev, Yulia Zhukova, Sergey Prokoshkin
Summary: The study compares plasma electrolytic oxidation (PEO) coatings on commercially pure titanium and a novel superelastic alloy Ti-18Zr-15Nb (at. %) for implant applications. Results show that the PEO coating on Ti-18Zr-15Nb alloy exhibits higher thickness, porosity, and roughness compared to the coating on commercially pure titanium, providing better corrosion protection.
Article
Materials Science, Coatings & Films
K. A. Cosan, K. O. Gunduz, M. Tarakci, Y. Gencer
Summary: This study investigates the effect of nickel addition on the plasma electrolytic oxidation (PEO) behavior of pure aluminum. The results show that the increase of nickel content leads to the coarsening of eutectic Al3Ni precipitates, which adversely affects the coatings produced.
SURFACE & COATINGS TECHNOLOGY
(2022)
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)