Journal of Thermal Spray Technology最新文献

Professor Pierre Léon Fauchais: “Passion and Courage” (1937–2024) 皮埃尔-莱昂-福舍教授："激情与勇气"（1937-2024 年）

IF 3.2 3区材料科学

Journal of Thermal Spray Technology Pub Date : 2024-09-23 DOI: 10.1007/s11666-024-01839-8

Armelle Vardelle

引用次数: 0

Microstructural Evolution and Tribological Responses of Heat-Treated AlFeCoNiCr–Cr3C2 Coating 热处理 AlFeCoNiCr-Cr3C2 涂层的微结构演变和摩擦学响应

IF 3.1 3区材料科学

Journal of Thermal Spray Technology Pub Date : 2024-09-17 DOI: 10.1007/s11666-024-01835-y

Q. Liu, G. Ji, L. Yang, P. F. Zhang, K. Y. Li, Z. W. Gao, L. S. Qiu, X. G. Hu, Y. Wang

{"title":"Microstructural Evolution and Tribological Responses of Heat-Treated AlFeCoNiCr–Cr3C2 Coating","authors":"Q. Liu, G. Ji, L. Yang, P. F. Zhang, K. Y. Li, Z. W. Gao, L. S. Qiu, X. G. Hu, Y. Wang","doi":"10.1007/s11666-024-01835-y","DOIUrl":"https://doi.org/10.1007/s11666-024-01835-y","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>Metal–carbide coatings with high hardness, high wear resistance and good thermal stability are widely used for surface protection of key equipment in high-temperature environments. However, the metal binder is susceptible to oxidized spalling and wear failure during long-term operation. This leads to severe limitations in the service life and stability of the coatings. In this study, an AlFeCoNiCr–Cr3C2 coating with high-entropy alloy as metal binder was fabricated by supersonic atmospheric plasma spraying. The effect of heat treatment on the microstructure, mechanical properties and tribological responses of the coating was studied comparatively. The results suggested that heat treatment at 600 °C resulted in the formation of nano-carbides (Cr23C6), a disordered BCC and FCC phases. The evolution of the phase structure synergistically increased hardness and toughness, thereby reducing wear rate and improving the high-temperature wear resistance. The primary wear mechanisms were abrasive and oxidation wear. Wear debris consisted mainly of phases such as NiCr2O4, Al2O3, NiO and Fe2O3.<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>","PeriodicalId":679,"journal":{"name":"Journal of Thermal Spray Technology","volume":"95 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142255451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In Situ Measurement of Track Shape in Cold Spray Deposits 冷喷沉积物轨道形状的现场测量

IF 3.1 3区材料科学

Journal of Thermal Spray Technology Pub Date : 2024-09-05 DOI: 10.1007/s11666-024-01826-z

Scott E. Julien, Nathaniel Hanson, Joseph Lynch, Samuel Boese, Kirstyn Roberts, Taşkin Padir, Ozan C. Ozdemir, Sinan Müftü

{"title":"In Situ Measurement of Track Shape in Cold Spray Deposits","authors":"Scott E. Julien, Nathaniel Hanson, Joseph Lynch, Samuel Boese, Kirstyn Roberts, Taşkin Padir, Ozan C. Ozdemir, Sinan Müftü","doi":"10.1007/s11666-024-01826-z","DOIUrl":"https://doi.org/10.1007/s11666-024-01826-z","url":null,"abstract":"Cold spray is a material deposition technology with a high deposition rate and attractive material properties that has great interest for additive manufacturing (AM). Successfully cold spraying free-form parts that are close to their intended shape, however, requires knowing the fundamental shape of the sprayed track, so that a spray path can be planned that builds up a part from a progressively overlaid sequence of tracks. Several studies have measured track shape using ex situ or quasi-in situ approaches, but an in situ measurement approach has, to the authors’ knowledge, not yet been reported. Furthermore, most studies characterize the track cross section as a symmetric Gaussian probability density function (PDF) with fixed shape parameters. The present study implements a novel in situ track shape measurement technique using a custom-built nozzle-tracking laser profilometry system. The shape of the track is recorded throughout the duration of a spray, allowing a comprehensive investigation of how the track shape evolves as the deposit is built up. A skewed track shape is observed—likely due to the side-injection design of the applicator used—and a skewed Gaussian PDF—a more generalized version of the standard Gaussian PDF—is fit to the track profile. The skewed Gaussian fit parameters are studied across two principal nozzle path parameters: nozzle traverse speed and step size. Empirical relationships between the fit parameters and the nozzle path parameters are derived, and a physics-based inverse relationship between nozzle speed and powder mass deposition rate is obtained. One of the fit parameters is shown to be an effective means of monitoring deposition efficiency during spraying. Overall, the approach presents a promising means of measuring track shape, in situ, as well as modeling it using a more general shape function.","PeriodicalId":679,"journal":{"name":"Journal of Thermal Spray Technology","volume":"9 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142176969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and Development of Cost-Effective Equipment for Tribological Evaluation of Thermally Sprayed Abradable Coatings 设计和开发经济高效的热喷涂可研磨涂层摩擦学评估设备

IF 3.1 3区材料科学

Journal of Thermal Spray Technology Pub Date : 2024-09-04 DOI: 10.1007/s11666-024-01830-3

K. Bertuol, B. E. Arendarchuck, F. R. E. Rivadeneira, B. C. N. M. de Castilho, C. Moreau, P. Stoyanov

{"title":"Design and Development of Cost-Effective Equipment for Tribological Evaluation of Thermally Sprayed Abradable Coatings","authors":"K. Bertuol, B. E. Arendarchuck, F. R. E. Rivadeneira, B. C. N. M. de Castilho, C. Moreau, P. Stoyanov","doi":"10.1007/s11666-024-01830-3","DOIUrl":"https://doi.org/10.1007/s11666-024-01830-3","url":null,"abstract":"Thermally sprayed abradable coatings are essential for enhancing gas turbine engines' performance, as they are commonly used for clearance control purposes. Abradables act as protective barriers between the stationary casing and rotating blades. However, evaluating the abradability performance of novel coatings is challenging, because it is typically very costly and time-consuming. Thus, the goal of this project is to create a cost-effective test rig that can evaluate and pre-screen different thermally sprayed abradable coatings and understand how they interact with titanium blade tips under application-relevant conditions. The rig is capable of providing various inputs and outputs, including blade tip velocity, incursion rates, incursion depths, reaction forces, and interfacial temperatures. Aiming to validate the rig, a detailed dynamic evaluation was conducted, as well as abradability tests on aluminum, thermally sprayed polyester, and AlSi-40Polyester abradable coating. The reaction forces for aluminum and polyester were overall higher when compared to AlSi-40Polyester. However, thermally sprayed polyester showed the highest interfacial temperatures of all materials tested. The difference in the reaction forces and interfacial temperature correlates well with the different wear mechanisms and thermal conductivities. Overall, the equipment showed to be a promising pre-screening methodology to evaluate and develop novel thermally sprayed abradable coatings.","PeriodicalId":679,"journal":{"name":"Journal of Thermal Spray Technology","volume":"16 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142176970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of Hydroxyapatite Powder Particle Size on Mechanical and Electrochemical Properties of Flame-Sprayed Coatings for Titanium Implants 羟基磷灰石粉末粒度对钛植入体火焰喷涂涂层的机械和电化学性质的影响

IF 3.1 3区材料科学

Journal of Thermal Spray Technology Pub Date : 2024-09-04 DOI: 10.1007/s11666-024-01831-2

Trong-Linh Nguyen, Anh-Vu Pham, Van-Thoai Nguyen, Tsung-Chieh Cheng

{"title":"Impact of Hydroxyapatite Powder Particle Size on Mechanical and Electrochemical Properties of Flame-Sprayed Coatings for Titanium Implants","authors":"Trong-Linh Nguyen, Anh-Vu Pham, Van-Thoai Nguyen, Tsung-Chieh Cheng","doi":"10.1007/s11666-024-01831-2","DOIUrl":"https://doi.org/10.1007/s11666-024-01831-2","url":null,"abstract":"Hydroxyapatite (HA) coatings on titanium substrates are widely investigated for biomedical applications due to their biocompatibility and osteoconductivity. This study explores the impact of HA powder particle size on the mechanical and electrochemical properties of flame-sprayed coatings. HA powders were synthesized via a wet chemistry method and characterized using x-ray diffraction, FTIR, and scanning electron microscopy. Flame spraying was employed to deposit HA coatings of varying particle sizes (0-37 µm, 37-63 µm, 63-104 µm, and 104-125 µm) onto titanium substrates. Mechanical properties such as surface roughness, adhesion strength, wear resistance, and Vickers hardness were evaluated, revealing that coatings with smaller particle sizes exhibited smoother surfaces, higher adhesion strengths, superior wear resistance, and greater hardness. Electrochemical properties were assessed through potentiodynamic polarization and electrochemical impedance spectroscopy in simulated body fluid, demonstrating that coatings with finer particle sizes displayed enhanced corrosion resistance compared to those with larger particles. Overall, this study underscores the critical role of HA powder particle size in optimizing the performance of flame-sprayed HA coatings for biomedical applications.","PeriodicalId":679,"journal":{"name":"Journal of Thermal Spray Technology","volume":"19 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142176971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Micro-cold Spray Deposition of YSZ Films from Ultrafine Powders Using a Pressure Relief Channel Nozzle 使用泄压通道喷嘴从超细粉末微冷喷雾沉积 YSZ 薄膜

IF 3.2 3区材料科学

Journal of Thermal Spray Technology Pub Date : 2024-08-27 DOI: 10.1007/s11666-024-01813-4

Stephen G. Bierschenk, Desiderio Kovar

{"title":"Micro-cold Spray Deposition of YSZ Films from Ultrafine Powders Using a Pressure Relief Channel Nozzle","authors":"Stephen G. Bierschenk, Desiderio Kovar","doi":"10.1007/s11666-024-01813-4","DOIUrl":"10.1007/s11666-024-01813-4","url":null,"abstract":"<div>The use of ultrafine powders in the micro-cold spray (MCS) process, also referred to as the aerosol deposition method, typically results in porous and/or poorly adhering films because the particles do not impact at a high enough velocity for sufficient plastic deformation and interparticle bonding to occur. Under typical operating conditions, particles < 100 nm accelerate to high velocities but then are slowed by the stagnant gas in the bow shock that forms just upstream of the substrate. Using larger particles reduces particle slowing, but large particles can cause erosion of the film at high impact velocity, decreasing deposition efficiency. In this study, a pressure relief channel nozzle using helium as a carrier gas is proposed such that high-velocity deposition of yttria-stabilized zirconia particles as small as 10 nm in diameter is possible. This is well below the size range of powders previously used for MCS. The proposed nozzle design increases impact velocities for 10, 20, and 50 nm particles by ~ 880, 560, and 160 m/s, respectively, when compared to a conventional nozzle. Experimental deposition of ultrafine 8YSZ powder shows that the pressure relief channel nozzle results in lower porosity and more uniform deposits, with a ∼ 186% increase in deposition efficiency.</div>","PeriodicalId":679,"journal":{"name":"Journal of Thermal Spray Technology","volume":"33 6","pages":"2022 - 2033"},"PeriodicalIF":3.2,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11666-024-01813-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142176983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulation of the Axial III Plus Plasma Torch and Its Arc Fluctuations 轴 III Plus 等离子炬及其电弧波动模拟

IF 3.1 3区材料科学

Journal of Thermal Spray Technology Pub Date : 2024-08-23 DOI: 10.1007/s11666-024-01827-y

Jyothi Krishna Perambadur, Vincent Rat, Taha Ngadia Niane, Christophe Chazelas

{"title":"Simulation of the Axial III Plus Plasma Torch and Its Arc Fluctuations","authors":"Jyothi Krishna Perambadur, Vincent Rat, Taha Ngadia Niane, Christophe Chazelas","doi":"10.1007/s11666-024-01827-y","DOIUrl":"https://doi.org/10.1007/s11666-024-01827-y","url":null,"abstract":"The demand for utilizing the Axial III Plus plasma spray system has prompted the numerical modeling of its arc plasma torch, integral to creating a digital twin of the suspension plasma spray process. The Axial III Plus plasma torch is a highly efficient and reproducible tool with a unique three-torch exit jet arrangement that allows the axial injection of solid/liquid feedstock, not possible with a single cathode/anode–plasma torch setup. In this study, we employ the local thermodynamic equilibrium approximation of the magnetohydrodynamic (MHD) model to simulate plasma flow inside the single gun plasma torch of Axial III, considering electrode–plasma interactions. Describing electric arc dynamics during restrike proves intricate; thus, a restrike model is used relying on cutoff criteria based on a threshold value Eb of the predicted radial electric field at the electric arc fringes. The model successfully replicates typical electric arc behavior and saw-toothed voltage profiles during restrike, notably capturing the characteristics of the Axial III anode’s unique and complicated design variations in electric arc motion and its corresponding arc voltage profile. Analysis extends to studying variations in Eb, which directly influence mean electric arc length, arc voltage, and mean arc spot time, potentially impacting energy generation and losses in the torch. These findings provide a valuable foundation for future simulations of this design, especially with swirl gas injection and ternary gas mixtures.","PeriodicalId":679,"journal":{"name":"Journal of Thermal Spray Technology","volume":"107 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142176972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Powder Oxidation on Microstructures and Mechanical Properties of Cold-Sprayed Nickel Coatings and Improvement by Post-spray Heat Treatment 粉末氧化对冷喷涂镍涂层微观结构和机械性能的影响以及喷涂后热处理对其性能的改善

IF 3.2 3区材料科学

Journal of Thermal Spray Technology Pub Date : 2024-08-22 DOI: 10.1007/s11666-024-01819-y

Zhengmao Zhang, Wenya Li, Jingwen Yang, Yaxin Xu, ChunJie Huang

{"title":"Effect of Powder Oxidation on Microstructures and Mechanical Properties of Cold-Sprayed Nickel Coatings and Improvement by Post-spray Heat Treatment","authors":"Zhengmao Zhang, Wenya Li, Jingwen Yang, Yaxin Xu, ChunJie Huang","doi":"10.1007/s11666-024-01819-y","DOIUrl":"10.1007/s11666-024-01819-y","url":null,"abstract":"<div>This study investigated the effect of powder pre-oxidation on the microstructures and mechanical properties of cold-sprayed nickel coatings. The artificially pre-oxidized nickel powders at 200, 300 and 400 °C for 5 h show the resulting oxygen contents of 0.27, 0.36 and 0.41 wt.%, as compared to 0.21 wt.% in the feedstock powder. Microstructurally, the higher oxygen contents of the impact particles significantly increased in both the number and size of the pores in the as-sprayed coatings by using the pe-oxidized powders, as a result of the porosities of 0.7, 1.5 and 3.3% compared to 0.4% by using the as-atomized powder (natural oxidation condition). Mechanically, the increased oxygen contents of powders result in the reduced properties for the as-sprayed Ni coatings, as the microhardness of 263.2 HV0.1, 245.3 HV0.1 and 236.3 HV0.1 and the tensile strength of 94, 76 and 61 MPa by using oxidized powders compared to those of 289.2 HV0.1 and 208 MPa by using natural oxidation powder. In addition, post-spray heat treatment at 800 °C for 2 h effectively reduces the small-sized pores and nonbonded particle-particle boundaries within the coatings, which is attributed to a combination effect of annealing twins and dislocation slip during heat treatment. As a result, the microhardness significantly decreased to 135.3 HV0.1, 126.7 HV0.1, 124.5 HV0.1 and 114.7 HV0.1, while the tensile strength is increased to 210, 166, 133 and 117 MPa, respectively.</div>","PeriodicalId":679,"journal":{"name":"Journal of Thermal Spray Technology","volume":"33 6","pages":"1968 - 1981"},"PeriodicalIF":3.2,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142223557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of Friction Stir Spot Processing on Grain Structure Evolution and Nanomechanical Behavior of Cold-Sprayed Al Coating on Ti Substrate 摩擦搅拌点加工对钛基底冷喷铝涂层晶粒结构演变和纳米力学行为的影响

IF 3.2 3区材料科学

Journal of Thermal Spray Technology Pub Date : 2024-08-22 DOI: 10.1007/s11666-024-01822-3

Gang Ji, Xin-Yuan Dong, Long-Shi Qiu, Xiao-Gang Hu, Hong Liu, Xiao-Tao Luo, Cheng-Xin Li

{"title":"Influence of Friction Stir Spot Processing on Grain Structure Evolution and Nanomechanical Behavior of Cold-Sprayed Al Coating on Ti Substrate","authors":"Gang Ji, Xin-Yuan Dong, Long-Shi Qiu, Xiao-Gang Hu, Hong Liu, Xiao-Tao Luo, Cheng-Xin Li","doi":"10.1007/s11666-024-01822-3","DOIUrl":"10.1007/s11666-024-01822-3","url":null,"abstract":"<div>The grain structure evolution and nanomechanical behavior of cold-sprayed Al coating on Ti substrate with friction stir spot processing (FSSP) were studied by the electron backscatter diffraction and nanoindentation methods. The low-angle boundaries (LAGBs) fraction and the density of the geometrically necessary dislocations (GNDs) decreased from the base zone (BZ) to the stir zone (SZ). The average grain size, the LAGBs fraction and the density of the GNDs were various in different locations of the SZ, which can be attributed to the variety of local shear strain and temperature gradient during FSSP. The B/(stackrel{{-}}{text{B}}) component, the C component, and the A*1/ A*2 component were mainly developed in the SZ. The highest intensity of the B/(stackrel{{-}}{text{B}}) component appeared in the 3/8D of the SZ, indicating that the plasticized materials flowed downward experienced the highest shear strain. The materials in the heat affected zone (HAZ) underwent static recrystallization, while the continuous dynamic recrystallization (CDRX) and the geometric dynamic recrystallization (GDRX) occurred in the thermo-mechanically affected zone (TMAZ) and SZ. The nano-hardness and elastic modulus of the cold-sprayed Al coating after FSSP were comparable to those of pure Al bulk. The grain size and dislocation density were the main factors affecting the nano-hardness in the SZ.</div>","PeriodicalId":679,"journal":{"name":"Journal of Thermal Spray Technology","volume":"33 6","pages":"1827 - 1839"},"PeriodicalIF":3.2,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142176984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bonding Mechanism of Arc-Sprayed ZnAl Coatings on Polypropylene Films: Numerical Simulation of Particle Behavior 聚丙烯薄膜上电弧喷涂锌铝涂层的粘合机理：颗粒行为的数值模拟

IF 3.2 3区材料科学

Journal of Thermal Spray Technology Pub Date : 2024-08-19 DOI: 10.1007/s11666-024-01799-z

Yiting Jiang, Hao Wu, Xinyu Ye, Chengjie Ge, Zhiqiang Yu, Dianbo Ruan, Xinkun Suo

{"title":"Bonding Mechanism of Arc-Sprayed ZnAl Coatings on Polypropylene Films: Numerical Simulation of Particle Behavior","authors":"Yiting Jiang, Hao Wu, Xinyu Ye, Chengjie Ge, Zhiqiang Yu, Dianbo Ruan, Xinkun Suo","doi":"10.1007/s11666-024-01799-z","DOIUrl":"10.1007/s11666-024-01799-z","url":null,"abstract":"<div>Interface microstructures of metallic coatings at end faces are critical for durability of metallic polypropylene (MPP) capacitors. However, the microstructures are difficult to be regulated efficiently due to the specificity of the polymer substrates. Therefore, ZnAl coatings were deposited at end faces of MPP capacitors by arc spraying. The temperature and velocity of in-flight droplets were regulated with different spray distance. A modified numerical simulation with a combustion model was employed to calculate the temperature and velocity of the droplets. The interface microstructures and equivalent series resistance of the capacitors were characterized. The results show that the temperature of the droplets continued to increase during the flight due to exothermic oxidation. The interface of the coatings with the spray distance of 150 mm presented a dendritic microstructure with deeper embedment depth and more bonding layers. The bonding layers reduced as the spray distance decreased to 120 mm because of the damage of the MPP layers. The embedment depth of the coatings decreased as the spray distance increased to 180 mm due to lower temperature of the droplets. The equivalent series resistance of the capacitors decreased to 7.84 mΩ with the dendritic interface microstructures. The research provides a new numerical model to optimize arc spraying and improve the quality of MPP capacitors.</div>","PeriodicalId":679,"journal":{"name":"Journal of Thermal Spray Technology","volume":"33 6","pages":"1914 - 1925"},"PeriodicalIF":3.2,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142176862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0