Relevant bibliographies by topics / Two-layer coating Al2O3

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Academic literature on the topic 'Two-layer coating Al2O3'

Author: Grafiati
Published: 28 May 2022
Last updated: 31 July 2025

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Journal articles on the topic "Two-layer coating Al2O3"

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Huang, Kezhi, Hao Liu, Weijing Wang, et al. "Predicting the Residual Stress of Amorphous Al2O3-Y2O3 Nano-Laminated Deuterium Permeation Barrier under Thermal Cycles." Coatings 12, no. 11 (2022): 1780. http://dx.doi.org/10.3390/coatings12111780.

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Al2O3-Y2O3 laminated coating can be applied in fusion reactors to prevent fuel leakage and radiological hazard. However, the residual stress induced by the thermal cycles during the operation of the reactor can cause the failure of the coating. In order to analyze the problem, finite element models of Al2O3-Y2O3 laminated coatings with 600 nm of total thickness and different layout were analyzed. The max principal stress site in the coatings is located at the sub-top layer. The max principal stress in laminated coating with the Y2O3 sub-top decreases from 657 MPa for a two-layer coating (300 n
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Kuo, Tsung-Yuan, Chi-Sheng Chien, Cheng-Wei Liu, and Tzer-Min Lee. "Comparative investigation into effects of ZrO2 and Al2O3 addition in fluorapatite laser-clad composite coatings on Ti6Al4V alloy." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 233, no. 2 (2018): 157–69. http://dx.doi.org/10.1177/0954411918816113.

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Composite coatings consisting of fluorapatite mixed with 20 wt% yttria (3 mol%) stabilized cubic phase zirconia (c-ZrO2, 3Y-TZP) or 20 wt% alumina (α-Al2O3) were deposited on Ti6Al4V substrates using a Nd:YAG laser cladding system. The interface morphology, phase composition, micro-hardness and biological properties of the two coatings were examined and compared. The results showed that the fluorapatite/Al2O3 specimen underwent a greater inter-diffusion at the interface between the coating layer and the transition layer than the fluorapatite/ZrO2 specimen. During the cladding process, the ZrO2
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Aristia, Gabriela, Le Quynh Hoa, Marianne Nofz, Regine Sojref, and Ralph Bäßler. "Study of Al2O3 Sol-Gel Coatings on X20Cr13 in Artificial North German Basin Geothermal Water at 150 °C." Coatings 11, no. 5 (2021): 526. http://dx.doi.org/10.3390/coatings11050526.

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Al2O3 has been widely used as a coating in industrial applications due to its excellent chemical and thermal resistance. Considering high temperatures and aggressive mediums exist in geothermal systems, Al2O3 can be a potential coating candidate to protect steels in geothermal applications. In this study, γ-Al2O3 was used as a coating on martensitic steels by applying AlOOH sol followed by a heat treatment at 600 °C. To evaluate the coating application process, one-, two-, and three-layer coatings were tested in the artificial North German Basin (NGB), containing 166 g/L Cl−, at 150 °C and 1 M
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Fu, Guangyan, Yongzhao Wu, Qun Liu, Rongguang Li, and Yong Su. "Hot Corrosion Behavior of Stainless Steel with Al-Si/Al-Si-Cr Coating." High Temperature Materials and Processes 36, no. 3 (2017): 243–48. http://dx.doi.org/10.1515/htmp-2015-0154.

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AbstractThe 1Cr18Ni9Ti stainless steel with Al-Si/Al-Si-Cr coatings is prepared by slurry process and vacuum diffusion, and the hot corrosion behavior of the stainless steel with/without the coatings is studied under the condition of Na2SO4 film at 950 °C in air. Results show that the corrosion kinetics of stainless steel, the stainless steel with Al-Si coating and the stainless steel with Al-Si-Cr coating follow parabolic laws in several segments. After 24 h corrosion, the sequence of the mass gain for the three alloys is the stainless steel with Al-Si-Cr coating < the stainless steel with
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Rodič, Peter, Barbara Kapun, and Ingrid Milošev. "The Effect of Pore Sealing in a Multilayer Si–O–Zr/Al2O3 Coating Designed to Protect Aluminium from Corrosion." Metals 13, no. 12 (2023): 1960. http://dx.doi.org/10.3390/met13121960.

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This study deals with the combination of two corrosion protection strategies for aluminium: barrier protection (provided by a 3.8 μm thick hybrid sol–gel coating) and aluminium pore sealing via the use of a 100 nm thick layer of aluminium oxide. A Si–O–Zr hybrid sol–gel coating (TMZ) was synthesised by combining two separately prepared sols (i) tetraethyl orthosilicate and 3-methacryloxypropyl trimethoxysilane and (ii) zirconium(IV) n-propoxide chelated with methacrylic acid. The synthesis of the Si–O–Zr hybrid sol–gel was evaluated at various stages using real-time infrared spectroscopy. A 10
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Grigoriev, Sergey, Catherine Sotova, Alexander Metel, et al. "Wear Resistance and Failure Mode of Coatings Based on the ZrN System with the Introduction of Ti, Nb, and Hf Deposited on a Titanium Alloy Substrate." Metals 15, no. 2 (2025): 163. https://doi.org/10.3390/met15020163.

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The article presents the results of a comparison of the wear resistance of coatings with a two-layer architecture (adhesion layer–wear-resistant layer) of Zr-ZrN, Zr-(Zr,Ti)N, Zr,Hf-(Zr,Hf)N, Zr,Nb-(Zr,Nb)N, Zr,Hf-(Ti,Zr,Hf)N, and Zr,Nb-(Ti,Zr,Nb)N coatings, deposited on a titanium alloy substrate. The wear resistance was studied using two different counterbodies: Al2O3 and steel. When in contact with the Al2O3 counterbodies, the best wear resistance was demonstrated by samples with Zr,Hf-(Zr,Hf)N and Zr,Nb-(Zr,Nb,Ti)N coatings. In tests conducted in contact with the steel counterbody, the bes
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Bai, Hui Ping, Fu Hui Wang, and Yuan Qiang Tu. "The Electrochemical Behavior of the Rehealing Oxide Scales After Pitting Corrosion." Advanced Materials Research 476-478 (February 2012): 1399–402. http://dx.doi.org/10.4028/www.scientific.net/amr.476-478.1399.

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The electrochemical behaviour of the rehealing oxide scales on the K52 nanocrystalline coatings had been studied by polarization curves. The results indicated that the oxide scales formed on the nano-coating exhibited rehealing ability after pitting corrosion, and the coating still had excellent corrosion resistance. The rehealing ability was enhanced with prolonged re-oxidation time. EDX analyses revealed that the oxide scales within the pits were composed of mixed-oxides (Cr2O3, Al2O3 and TiO2). The mixed-oxides were made up of two layers: the external oxide layer was composed of Cr2O3 and T
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Zhang, Chen, Bingying Wang, Xiaoyong Sun, et al. "Study of Hot-Dip Aluminium Plating Based on Micro-Morphology and Coating Bond Strength." Coatings 14, no. 10 (2024): 1257. http://dx.doi.org/10.3390/coatings14101257.

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Hydrogen barrier coatings with Al2O3 as the main component are a good choice for solving the hydrogen embrittlement problem during hydrogen transportation in long-distance pipelines. However, the difference in the coefficients of thermal expansion between the substrate and the Al2O3 coating limits its further utilisation and development. In this study, rare earth oxides were added to the molten aluminium solution, and a Fe-Al transition layer was introduced on the surface of X80 steel by hot-dip plating to solve the thermal mismatch. Here, the microstructure and bonding strength of the hot-dip
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Donkov, N., A. Zykova, V. Safonov, S. Dudin, S. Yakovin, and D. Dimov. "Structural and mechanical properties of magnetron-sputtering-deposited Ta- and Al- based coatings – a comparative analysis." Journal of Physics: Conference Series 2487, no. 1 (2023): 012039. http://dx.doi.org/10.1088/1742-6596/2487/1/012039.

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Abstract A comprehensive evaluation of the structure and the nano-mechanical characteristics of single and two-layer nano-structured coatings AlN/Al2O3, TaN/Ta2O5 grown on the surface of metallic materials. The formation of a two-layer structure improves the mechanical and tribological properties of the coating-substrate system, such as the plastic deformation resistance and anti-wear performance. The results indicate that the proposed two-layer nanostructured nitride-oxide coatings based on aluminum and tantalum are promising candidates for biomedical applications.
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Su, Linfen, Guanqun Zhuo, Haiwen Song, Jianyong Yang, and Kaiyong Jiang. "Effect of Al2O3 and SiO2 Inert-Fillers on the Microstructural Evolution and High Temperature Oxidation Resistance of B Modified Silicides Coatings Prepared by Pack Cementation Technology." Coatings 11, no. 6 (2021): 700. http://dx.doi.org/10.3390/coatings11060700.

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In this study, B modified silicide coatings were prepared on Nb-Si based alloy with Al2O3 or SiO2 inert-filler by pack cementation technology. Both coatings primarily consisted of a (Nb,X)Si2 with a (Nb,X)B2 + (Nb,X)Si2 outer layer. After oxidation at 1250 °C for 100 h, the coatings showed good oxidation resistance due to the formation of a dense silica. The oxidation products of the coating prepared with Al2O3 inert-filler consisted of SiO2, TiO2 and Cr2O3, while that of the coating prepared with SiO2 inert-filler consisted of SiO2, TiO2, Cr2O3, and HfO2. The different oxidation products may
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Dissertations / Theses on the topic "Two-layer coating Al2O3"

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Кульментьєва, Ольга Петрівна, Ольга Петровна Кульментьева, Olha Petrivna Kulmentieva та М. М. Ахмед. "Свойства двухслойного покрытия Al2O3/TiN после обработки электронным пучком". Thesis, Издательство СумГУ, 2008. http://essuir.sumdu.edu.ua/handle/123456789/4397.

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В настоящей работе изучены механические свойства двухслойного покрытия Al2O3/TiN. Покрытие из Al2O3 было получено плазменно-детонационным методом на подложке из стали 3 [1]. Вторым слоем служило покрытие из нитрида титана, полученное вакуумно-дуговым методом на установке Булат-3Т.. Двухслойное покрытие подвергалось обработке сильноточным электронным пучком на установке У-212. Расфокусированный электронный пучок перемещался по подложке с покрытием. При остановке пучка его ток составлял 25 и 35 мА. После обработки пластина с двухслойным покрытием разрезалась электроискровым методом на фр
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Book chapters on the topic "Two-layer coating Al2O3"

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Deshpande-Purohit, Pritee, Shashikant Vagge, and Bhavana Shrigadi. "Cyclic Oxidation of Combined LTA/YSZ and Alumina Thermal Spray Coatings." In Advanced Surface Coating Techniques for Modern Industrial Applications. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4870-7.ch003.

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Thermal barrier coatings protect the substrate from thermal diffusion, oxidation, phase transformations, elastic deformation, plastic deformation, creep deformation, thermal expansion, thermal radiation. It allows parts and components of gas turbines to withstand high temperature upto1650 °C. Cylic oxidation behavior of alumina incorporated, lanthanum titanium aluminum oxide (LaTi2Al9O19), and yttria stabilized zirconia (YSZ), that is LTA/YSZ top ceramic layer coating, was investigated. Two coating combinations, L 100 having top LTA layer thickness of 100 µm and L 150 having top layer of LTA h
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Conference papers on the topic "Two-layer coating Al2O3"

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Drozda, F. O., S. A. Pianaro, and A. S. C. M. d´Oliveira. "Synthesis of Al2O3 Coatings by Plasma Transferred Arc." In ITSC2011, edited by B. R. Marple, A. Agarwal, M. M. Hyland, et al. DVS Media GmbH, 2011. http://dx.doi.org/10.31399/asm.cp.itsc2011p0969.

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Abstract The protection of metallic components against severe operating conditions has motivated the development of coatings for a wide range of applications. In particular, ceramic coatings can be used to protect components that operate under high temperatures and corrosive environments aiming to extend their service life. Several Thermal Spray processes can be used to process ceramic coatings on the metals, taking advantage of the mechanical bond typical of these processes. The exception is the Plasma Transferred Arc (PTA) process which results in a metallurgical bond between the coating and
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Bykova, A. D., and E. B. Sedakova. "MODIFYING OF WORKING SURFACES OF FRICTION COMPONENTS BY TWO-LAYER WEAR-RESISTANT Al-Al2O3 COATING." In Механика и трибология транспортных систем (МехТрибоТранс-2021). Ростовский государственный университет путей сообщения, 2021. http://dx.doi.org/10.46973/978-5-907295-52-0_2021_306.

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Uppu, Nalini, Patrick F. Mensah, and Ravinder Diwan. "Two-Dimensional Thermal Performance Analysis of a Semi-Transparent Spectral Zirconia Thermal Barrier Coating." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-62356.

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The performance of an aero engine can be increased in two ways: one by reducing the air requirement for the cooling of the turbine blades and secondly by increasing the turbine inlet temperature (TIT) that is operating temperature of the turbine blades. Taking into account the latter approach the blade material must withstand high temperatures of above 1350°C. For this enhancing purpose, protective coatings called the thermal barrier coatings (TBC) are being employed. The thermal barrier coating mainly consists of two layers; one is the metallic coating MCrAlY, which is the premiere layer over
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Ogawa, K., T. Shoji, and T. Masuda. "Kinetics of Thermally Grown Oxide at Interface Between Thermal Barrier Coatings and MCrAlY Bond Coatings." In ITSC2001, edited by Christopher C. Berndt, Khiam A. Khor, and Erich F. Lugscheider. ASM International, 2001. http://dx.doi.org/10.31399/asm.cp.itsc2001p0187.

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Abstract In recent years, thermal barrier coatings (TBC) have been used in advanced gas turbine plants for improved durability and performance. Typically, TBCs consist of an inner layer of metallic bond coating (MCrAlY) and an outer layer of ceramic top coating (8wt% yttria stabilized zirconia (YSZ)). According to several studies, the failure of coating is induced by thermal stress due to formation of oxides at the interface between YSZ and MCrAlY. Therefore, it is important to investigate kinetics of oxidation at the interface. In this work, the interface between YSZ and MCrAlY is studied and
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Grzesik, Wit, and Piotr Nieslony. "A Model for the Tribo-Contact and Heat Distribution When Turning With Coated Carbide Inserts." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0697.

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Abstract The orthogonal machining process when end turning medium carbon and austenitic stainless steels with cemented WC-Co tools coated with single-layer (TiC), two-layer (TiC/TiN), and three-layer (TiC/Al2O3/TiN) hard thin films was investigated. Extensive experimental investigations including the thermal, mechanical and tribological responses of the tribo-contact between the coating-substrate system and the chip, under different cutting conditions, were carried out. The study sheds light on the cutting forces, the interface temperatures and the tribo-contact conditions, including the fxict
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Park, Kyung-Hee, and Patrick Y. Kwon. "Tool Wear Analysis on Multi-Layered Coated Carbide Tools in Face Milling of AISI 1045 Steel." In ASME 2010 International Manufacturing Science and Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/msec2010-34066.

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Face milling tests on AISI 1045 steel were performed to study the flank wear of multilayered coated carbide tools. The cutting tools were dual (TiN/TiAlN) and triple (TiN/Al2O3/TiCN) layered, coated carbide inserts processed by PVD and CVD respectively. As expected, the depth of cut (DOC) did not play an important role on the development of flank wear while the cutting speed had a significant role in the development of flank wear. Using confocal laser scanning microscopy (CLSM) and wavelet transform, the flank wear evolution was analyzed and abrasive wear was found to be a dominant tool wear m
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Kireitseu, M. "Fatigue and Fracture Resistance of Nanostructured Composite System: Chrome Carbide – Hard Oxide Aluminum – Aluminum." In ITSC2003, edited by Basil R. Marple and Christian Moreau. ASM International, 2003. http://dx.doi.org/10.31399/asm.cp.itsc2003p0301.

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Abstract In this paper Al-Al2O3-CrC nanostructured composite coating was presented, fatigue and fracture of the composite coating were investigated by nanoindentation, and in situ experiments performed in a scanning electron microscope to permit examination of freshly exposed surfaces. Crystallographic and morphological texture was characterized and the fracture resistance measured using fracture-mechanics. A CrC layer may improve the fracture resistance of an oxide aluminum layer. A CrC layer produced by pyrolitic deposition effectively heals the pores and defects of an oxide aluminum layer.
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Tawancy, H. M., and Luai M. Al-Hadhrami. "Role of Platinum in Thermal Barrier Coatings Used in Gas Turbine Blade Applications." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59153.

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Current technology of thermal barrier coating systems used in gas turbine blade applications relies upon the use of a metallic bond coat, which has a two-fold function: i) it develops a thin layer of aluminum oxide enhancing the adhesion of the ceramic top coat, and ii) it provides an additional resistance to oxidation. It was the objective of this study to develop an understanding of the role of platinum in bond coats of the diffusion-type deposited on a nickel-base superalloy. Two Pt-containing bond coats were included in the study: i) a platinum-aluminide and ii) a bond coat formed by inter
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Behr, Christian, Peter Wierach, and Michael Sinapius. "Diffusion-Resistant Coating for Harsh Environment Application of Piezoelectric Actuators." In ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/smasis2018-8234.

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This paper presents the development process of an electrically insulating and liquid-impermeable coating for piezoelectric actuators. Against the background of flow investigations of an adaptive airfoil in a water tunnel the adaptive lip including PZT-ceramics for the active lip deformation must be insulated and sealed up against the ingress of moisture. Due to high electric field strength of 2 kV/mm between electrodes of multilayer actuators any ingress of moisture would lead to a reduction of the dielectric strength and may cause a short circuit. In order to prevent failure of the adaptive l
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Taya, M., J. K. Lee, and T. Mori. "Dislocation Punching in Functionally-Graded Materials." In ASME 1996 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/imece1996-0473.

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Abstract A new dislocation punching model for a functionally graded material (FGM) subjected to a temperature change has been proposed, using Eshelby’s model. FGM, consisting of several layers, is deposited on a ceramic substrate. Two types of microstructures are examined for a layer: one consists of a metal matrix and ceramic particles and the other of a ceramic matrix and metal particles. An elastic energy is evaluated when plastic strain, in addition to thermal mismatch strain, is introduced in the metal phase. The work dissipated by the plastic deformation is also calculated. From the cond
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