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Journal articles on the topic 'Formation mechanism of composite coating'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 February 2022

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1

Gnedenkov, Andrey S., Sergey L. Sinebryukhov, Dmitry V. Mashtalyar, and Sergey V. Gnedenkov. "Inhibitor-Containing Composite Coatings on Mg Alloys: Corrosion Mechanism and Self-Healing Protection." Solid State Phenomena 245 (October 2015): 89–96. http://dx.doi.org/10.4028/www.scientific.net/ssp.245.89.

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The way of self-healing coating formation at the surface of magnesium alloys by means of plasma electrolytic oxidation method (PEO) with subsequent filling of the obtained layer with inhibitor has been suggested. The electrochemical properties of such coatings have been described in details. The obtained experimental results indicate that the protective properties of the samples with inhibitor-containing coating were increased (IC = 8.6×10–8 A/cm2) in comparison with the samples without coating (5.3×10–5 A/cm2) and the base coating obtained by plasma electrolytic oxidation method (PEO) (3.4×10
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2

Yu, Hua Bing, and Rui Feng Li. "Preparation of Biomimetic Superhydrophobic Silica/Polyurethane Composite Coating." Advanced Materials Research 785-786 (September 2013): 974–77. http://dx.doi.org/10.4028/www.scientific.net/amr.785-786.974.

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The SiO2/PU composite coatings were prepared by the bionic methods. First, nanosilica (SiO2) was prepared by sol-gel method using tetraethyl orthosilicate (TEOS) as the precursor. Then, by a simple spray process. The formation mechanism and the structure characteristics of the coating were analyzed. The coating surface was characterized using scanning electron microscopy (SEM). The effect of the content of the SiO2 and the dosage of PU and PEAC on the coating structure and contact angle was also studied. The results show that the coating surface has the similar micro-nanostructure with a lotus
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3

Hu, Xian Guo, Wen Ju Cai, Jiu Cong Wan, Yu Fu Xu, and Xiao Jun Sun. "Study of Corrosion Performance of Electroless Ni-P Coating with Molybdenum Disulfide Nanoparticles." Key Engineering Materials 373-374 (March 2008): 256–59. http://dx.doi.org/10.4028/www.scientific.net/kem.373-374.256.

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The electroless nickel-phosphor coatings containing molybdenum disulfide nanoparticles were prepared and analyzed in this paper. The effects of incorporation of MoS2 into the Ni-P coating on the morphology of the coating surface and corrosion properties were also studied. Corrosion tests were conducted inside a salt spray box with NaCl solution (5.0 wt%). The corrosional surfaces were studied and analyzed through optical microscope, X-ray spectrometer (XRD) and scanning electron microscopy (SEM). The investigation on the relationship between heat-treatment and the corrosion resistance of the c
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4

Chen, Yang, Cheng Guo Wang, and Wei Zhao. "Influence of SiC Whisker on Formation and Oxidation Resistance of Coating for C/C Composite." Advanced Materials Research 430-432 (January 2012): 373–77. http://dx.doi.org/10.4028/www.scientific.net/amr.430-432.373.

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To protect carbon/carbon (C/C) composite against oxidation, a SiC/Si/MoSi2anti-oxidation coating was preparated on C/C composite by embedding with the powder mixture of Si, C and MoSi2at 1600°C in argon atmosphere. In order to investigate the effection of SiC whisker on formation and oxidation resistance of coating, SiC whisker was introduced to coatings by pyrolysis of hydrogen silicone oil (H-PSO) at 1600°C before embedding treatment. Oxidation experiment was carried out in the static air at 1400°C for 2h, and thermal cycling between 1400°C and room temperature for 5 times. Morphology and ph
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Bobkova, T. I., A. I. Dmitryuk, E. A. Nezhensky, and N. A. Lukyanova. "On the structure and properties of functional coatings from composite powders of the aluminum – silicon nitride system reinforced with a SiALON type phase." Voprosy Materialovedeniya, no. 2(106) (August 1, 2021): 80–89. http://dx.doi.org/10.22349/1994-6716-2021-106-2-80-89.

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The work studies development process of a composite powder of the aluminum – silicon nitride system and sprayed coatings using the mechanism of the formation of composite granules and the distribution of a hardening phase of the Sialon type in them. Various modes of powder composite mechanosynthesis are studied. The results of determining the hardness, chemical composition and distribution of elements in the resulting coating are given.
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DU, BAOSHUAI, ZHONGWEN ZHANG, XINHONG WANG, and ZENGDA ZOU. "FORMATION MECHANISM OF TITANIUM CARBIDE CRYSTAL IN LASER SYNTHESIZED METAL-CERAMIC COMPOSITE COATING." Surface Review and Letters 18, no. 01n02 (2011): 1–9. http://dx.doi.org/10.1142/s0218625x11014412.

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In situ titanium carbide reinforced iron-based composite coating was deposited on mild carbon steel using laser surface engineering (LSE) with ferrotitanium and graphite as precursor. The microstructure and phase constituents of the deposited coating were characterized. Formation mechanism of titanium carbide crystal in the composite coating was elucidated by correlating the morphology of titanium carbide and the thermal cycle experienced by the precursor during the laser treatment. It was demonstrated that titanium carbide was formed in situ as a result of the metallurgical reaction between f
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7

Sun, Bin, Wen Yong Zhang, Jin Bin Lu, and Zhi Xin Wang. "Microstructure and Hardness of TiC/Ni-Based Coating by Plasma Cladding." Advanced Materials Research 510 (April 2012): 734–37. http://dx.doi.org/10.4028/www.scientific.net/amr.510.734.

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TiC reinforced Ni-based composite coating added with 10% TiC particles was prepared on the surface of Q235 steel by plasma cladding. SEM as well as EDS and XRD were used to investigate the microstructure and formation mechanism of composite coating. The results show that between composite coating and substrate is metallurgical combination, and the microstructure of composite coating is composed of basic microstructure dendrite γ-Ni, interdendritic eutectic structure (α-Fe+Cr7C3+Fe3C) and dispersed TiC particle. The maximum value of micro-hardness of composite coating added with 10% TiC particl
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8

Zhao, Yun Cai, and Dong Ling Yu. "Research on Anti-Friction Mechanism of Ni60A/MoS2 Composite Coating." Advanced Materials Research 152-153 (October 2010): 175–79. http://dx.doi.org/10.4028/www.scientific.net/amr.152-153.175.

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Based on the research of the tribological properties of the Ni60A/MoS2 composite coating, this paper has studied and discussed the self-lubricating effect and mechanism of the MoS2 film in the Ni60A /MoS2 composite coating. Research shows that when self-lubricate coating rub, MoS2 solid lubricant can be precipitated, forming lubricating film on the friction surface through dragging. The Solid lubricate film of MoS2 is an important factor that lead the friction coefficient of Ni60A/MoS2 composite lubricate coating decrease. Meanwhile we analyze the formation phenomenon and friction and wear pro
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9

Calli, Cagdas, Onur Tazegul, and Eyup Sabri Kayali. "Wear and corrosion characteristics of copper-based composite coatings." Industrial Lubrication and Tribology 69, no. 2 (2017): 300–305. http://dx.doi.org/10.1108/ilt-07-2016-0146.

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Purpose The purpose of this paper is to investigate the effects of reinforcing particles (B4C, TiB2 and TiC) on the physical, corrosion and wear behaviour of copper matrix composite coatings. Design/methodology/approach Coatings were produced by cold gas dynamic spraying process, and the contribution of reinforcements (B4C, TiB2 and TiC) to the coating characteristics was detected through microstructural examinations (scanning electron microscope examinations and X-ray diffraction analyses), hardness and electrical conductivity measurements, corrosion tests in Cl− environment with potentiostat
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10

Li, Ying, Wen Jun Zou, Bian Xiao Li, and Qi Ming Dong. "Nano-Crystalline Structure and Strengthening Mechanism of Nano-Diamond/Ni Composite Coatings by Brush-Plating." Advanced Materials Research 239-242 (May 2011): 616–19. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.616.

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Nano-diamond/Ni and Ni coatings were prepared by brush plating. SEM and XRD methods were applied to investigate the morphology, nano-crystalline structure and grain size of the coatings. The results show that the grain size of the brush coatings all is in nanometer scale. The surface morphology of the composite brush coatings is a finer and denser cauliflower-like structure. Meanwhile the reasons of formation nano-crystalline structure are the high over-potential, the discontinuous grain growth resulted from the reciprocating motion and friction between the plating pen and the work piece, the
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11

Смоленцев, Владислав, Vladislav Smolentsev, Михаил Кондратьев, Mihail Kondratiev, Евгений Смоленцев, and Evgeny Smolentsev. "Technology of composite erosion-radiation coating." Science intensive technologies in mechanical engineering 2, no. 9 (2017): 9–16. http://dx.doi.org/10.12737/article_59ae90c54b8cd0.64519859.

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A new method of composite treatment with the simultaneous impact of thermal energy of a current pulse and heat supply of a plasma beam is developed. The mechanism of a qualitative coating formation is shown at which the thick layer shaping with the improved micro-profile is achieved, where a micro-surface profile matching is achieved at the expense of the impact of concentrated energy supplied by a plasma beam to the surface of a molten coating causing an increased metal castability, its runoff from lugs into hollows and micro-irregularity height decrease.
 A mechanism of combined process
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12

Shi, Qin, Hejun Zhu, and Changsheng Li. "The Effects of the Addition of Ti3SiC2 on the Microstructure and Properties of Laser Cladding Composite Coatings." Coatings 10, no. 5 (2020): 498. http://dx.doi.org/10.3390/coatings10050498.

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This study explored the effects of Ti3SiC2 on the microstructure and properties of laser cladding coatings using X-ray diffractometer, scanning electron microscope, electrochemical workstation, and UMT-2 wear tester analyses. It was found that with the addition of Ti3SiC2, the reinforcing phases in the composite coating were TiC, Ti(B,C)2, honeycomb-like (Cr, Fe)23C6, and a novel composite ceramic with an “eyeball” structure, which had an inside core of Al2O3 and TiC outer surrounding structure. The microhardness, wear, and corrosion resistance of the composite coating were about 1.35, 2, and
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13

WANG, Zhen-ting, Xiao-hui ZHOU, and Guo-gang ZHAO. "Microstructure and formation mechanism of in-situ TiC-TiB2/Fe composite coating." Transactions of Nonferrous Metals Society of China 18, no. 4 (2008): 831–35. http://dx.doi.org/10.1016/s1003-6326(08)60144-2.

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14

Zhao, Yuantao, Lianbo Wang, Zhenbo Qin, et al. "The Roles of Ti Particles in Improving the Corrosion Resistance of Electrochemically Assembled Ni-Ti Composite Coatings." Corrosion 73, no. 9 (2017): 1107–18. http://dx.doi.org/10.5006/2408.

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The influences of co-deposited Ti particles on corrosion behavior of electrodeposited Ni-Ti coatings were investigated. The co-deposited Ti particles caused the refined crystallite size and random-oriented texture of Ni-Ti coating. In 3.5 wt% sodium chloride (NaCl) solution, the buried Ti particles in Ni matrix blocked the corrosion path and rapid intercrystalline corrosion. The inert TiO2 could form on the exposed Ti particles and hinder localized corrosion. In 10 wt% sodium hydroxide (NaOH) solution, Ni matrix crystallites, refined by co-deposited Ti particles, contributed to formation of th
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15

Huang, Songqiang, Jingzhong Zhou, Kuoteng Sun, et al. "Microstructural Charactistics of Plasma Sprayed NiCrBSi Coatings and Their Wear and Corrosion Behaviors." Coatings 11, no. 2 (2021): 170. http://dx.doi.org/10.3390/coatings11020170.

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Nickel-based alloys are commonly used as protective coating materials for surface protection applications owing to their superior resistance to corrosion, wear and high-temperature oxidation. It is urgent to study the fundamental mechanism between the structure and corrosion properties of the Nickel-base composite coatings. This paper, therefore, focuses on clarifying the mechanisms of the microstructure influencing the acid corrosion and mechanical characteristics of the as-sprayed NiCrBSi coating and post-heat-treated coating. The formation mechanisms of the amorphous phase of flat particles
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16

Lu, Jin Bin, Pu Meng, Feng Tang, Jin Xia Gong, and Bin Zhao. "Microstructure Analysis of TiC Reinforced Fe-Based Composite Coating by Plasma Cladding." Advanced Materials Research 472-475 (February 2012): 297–301. http://dx.doi.org/10.4028/www.scientific.net/amr.472-475.297.

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TiC reinforced Fe-based composite coating with 10% and 20% TiC particle were prepared on the surface of substrate Q235 steel by plasma cladding, respectively. The microstructure and formation mechanism of cladding layer were carefully investigated by SEM, EDS and XRD. The results show that metallurgical combination is achieved between coating and substrate, the microstructure of composite coating is composed of dendrite α-Fe, interdendritic eutectic structure (α-Fe, Cr23C6 and CrB) and added TiC particles, and microstructure refinement with the increase of TiC particles content. TiC particles
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17

Gong, Jin Xia, Jin Bin Lu, and Ying Liu. "Microstructure Analysis of TiC Reinforced Ni-Based Composite Coating by Plasma Cladding." Advanced Materials Research 538-541 (June 2012): 286–89. http://dx.doi.org/10.4028/www.scientific.net/amr.538-541.286.

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TiC reinforced Ni-based composite coating added with 10% TiC and 20% TiC particles were prepared on the surface of Q235 steel by plasma cladding, respectively. SEM as well as EDS and XRD were used to investigate the microstructure and formation mechanism of composite coating. The results show that between composite coating and substrate is metallurgical combination, and the microstructure of composite coating is composed of basic microstructure dendrite γ-Ni, interdendritic eutectic structure (α-Fe+Cr23C6+CrB) and dispersed TiC particle. Part of TiC particles melt when the composite coating ad
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18

Khimukhin, S. N., and Kseniia P. Eremina. "Microstructure Peculiarities of Intermetallic and Composite Coatings." Solid State Phenomena 316 (April 2021): 783–88. http://dx.doi.org/10.4028/www.scientific.net/ssp.316.783.

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Coatings were obtained by the method of electrospark deposition (ESD), using Ni-Al intermetallic alloys, steel having been used as cathodes. The structure of samples preliminarily, coated with nickel aluminides of various phase compositions (NiAl, Ni3Al), was investigated. In addition to the indicated anode materials, a complex alloyed metal matrix alloy obtained by the method of self-propagating high-temperature synthesis, was used. It was established that the coating microstructure consisted of columnar crystallites, vertically oriented to the cathode surface. X-ray microanalysis of the tran
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19

Maestracci, R., N. Fabrègue, M. Jeandin, et al. "Study of Damage Mechanisms in Cold-Sprayed 316L-Matrix Composite Coatings Using Novel Impact-Sliding Testing." Advanced Materials Research 922 (May 2014): 452–62. http://dx.doi.org/10.4028/www.scientific.net/amr.922.452.

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Cold spray is now well recognized as one of the most powerful and efficient coating process because it is cost-attractive and “green”. However, this process still shows limitations to achieve coatings for highly-demanding service conditions such as those required in certain automotive and/or aircraft applications. Beyond these limitations, cold spray is expected to compete with conventional P/M routes.The present work therefore focussed on the study of damage mechanisms in cold-sprayed AISI 316L and 316L-matrix–Cu composites coatings due to high-loading conditions. Different damage mechanisms
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20

Bao, Yang, Lujun Huang, Qi An, Shan Jiang, Lin Geng, and Xinxin Ma. "Wire-feed deposition TiB reinforced Ti composite coating: Formation mechanism and tribological properties." Materials Letters 229 (October 2018): 221–24. http://dx.doi.org/10.1016/j.matlet.2018.07.022.

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21

Su, Yingchao, Yichang Su, Yanbo Lu, Jianshe Lian, and Guangyu Li. "Composite Microstructure and Formation Mechanism of Calcium Phosphate Conversion Coating on Magnesium Alloy." Journal of The Electrochemical Society 163, no. 9 (2016): G138—G143. http://dx.doi.org/10.1149/2.0801609jes.

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22

Wang, Zhi Xin, Li Qian, and Wei Tie Yang. "Study of Plasma Cladding Ni-Based Compound Powder Layers on Q235 Steel." Applied Mechanics and Materials 174-177 (May 2012): 219–22. http://dx.doi.org/10.4028/www.scientific.net/amm.174-177.219.

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By plasma cladding technology, the Ni60B/TiC composite coating metallurgically bonded to Q235 steel were prepared using Ni-based alloy and TiC powders. The microstructure formation mechanism of the clad layers was investigated by scanning electron microscopy (SEM) and X-ray Diffraction (XRD). The microhardness distribution and wear resistance of the specimens were tested. The results show that metallurgical combination is achieved between coating and substrate, the microstructure of composite coating is composed of dendrite γ-Ni, α-Fe, added TiC and FeNi. The hardness and wear resistance of co
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Hu, Xiaodong, and Yajiang Li. "INFLUENCE OF TEMPERING ON THE MICROSTRUCTURE PERFORMANCE OF THE LASER-TREATED COATINGS ON 45 STEEL." Surface Review and Letters 20, no. 05 (2013): 1350048. http://dx.doi.org/10.1142/s0218625x13500480.

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Effect of the tempering on the microstructures and tribological properties of the laser alloying coatings is investigated. Laser alloying of the T - Co 50/ TiC mixed powders on a 45 steel substrate can form a hard composite coating, which increased the micro-hardness and wear resistance of the substrate greatly. Such laser alloying coating was investigated by means of a scanning electron microscope (SEM) and a transmission electron microscope (TEM). Experimental results indicate that the tempering is able to remove the accumulation of the residual stress in a certain extent, improving the plas
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Wang, Xiaoming, Xingeng Li, Qingquan Lei, Yaping Wu, and Wenjing Li. "Fabrication of superhydrophobic composite coating based on fluorosilicone resin and silica nanoparticles." Royal Society Open Science 5, no. 7 (2018): 180598. http://dx.doi.org/10.1098/rsos.180598.

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Composite superhydrophobic coating built with film former and filler is attracting much attention for its facile and convenient fabrication, but significant limitations and disadvantages still remain. In this paper, a composite superhydrophobic coating is introduced which can be cured at room temperature and made by dispersing modified silica nanoparticles with 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane in fluorosilicone resin. Silica content and dispersion time showed obvious influences on the morphology and topography of composite coating by reuniting dispersed nanoparticles to form peaks
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He, Chunlin, Deyuan Lou, Jianming Wang, and Qingkui Cai. "Corrosion protection and formation mechanism of anodic coating on SiCp/Al metal matrix composite." Thin Solid Films 519, no. 15 (2011): 4759–64. http://dx.doi.org/10.1016/j.tsf.2011.01.030.

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26

Wu, Dan, Zi Shuan Fan, and Yan Yang. "Formation and Properties of Fe-Based Amorphous/Nanocrystalline Alloy Coating Prepared by Wire Arc Spraying Process." Materials Science Forum 944 (January 2019): 499–505. http://dx.doi.org/10.4028/www.scientific.net/msf.944.499.

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In this paper, a kind of FeCrBSiMnMoW amorphous nanocrystalline composite coating was prepared on the steel matrix by arc spraying, and the microstructure and properties of the coating were studied. The results show that the coating owns compact structure and low porosity. The coating is composed of amorphous phase and α (Fe, Cr) nanocrystalline phase, and the nanocrystalline phase is uniformly distributed in the amorphous matrix. The initial crystallization temperature is above 587.5 °C, which indicates the coating has good thermal stability. The Vickers hardness of the coating is around HV0.
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27

Murray, J. W., S. J. Algodi, M. W. Fay, P. D. Brown, and A. T. Clare. "Formation mechanism of electrical discharge TiC-Fe composite coatings." Journal of Materials Processing Technology 243 (May 2017): 143–51. http://dx.doi.org/10.1016/j.jmatprotec.2016.12.011.

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28

Yan, Yu Tao, Yu Qiu Huo, Zhi Li Sun, and Zhen Xing Xu. "Preparation of Electroless Ni-P Composite Coating and its Tribological Properties." Advanced Materials Research 199-200 (February 2011): 696–99. http://dx.doi.org/10.4028/www.scientific.net/amr.199-200.696.

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The Ni-P composite coatings onto 4043 aluminum alloy were prepared by electroless plating with nickel sulfate and sodium hypoposphite as raw material. The Ni-P composite coatings were heat-treated for 1 hour at 200°C, 300°C, 400°C, 500°C and 600°C, respectively. The tribological behaviour of the coatings was investigated on a vertical universal friction/wear tester under dry friction. The morphology and phase structure of the composite coatings were characterized by scanning electron microscope (SEM) and transmission electron microscope (TEM), and the microhardness of the composite coatings we
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29

Riquelme, Ainhoa, Pilar Rodrigo, María Dolores Escalera-Rodriguez, Pablo García-Fogeda, and Joaquín Rams. "Influence of the Feed Powder Composition in Mechanical Properties of AlN-Nano-Reinforced Aluminium Composites Coatings Deposited by Reactive Direct Laser Deposition." Metals 10, no. 7 (2020): 926. http://dx.doi.org/10.3390/met10070926.

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Aluminium matrix composite coatings reinforced with AlN nanopaticles have been manufactured by direct laser deposition on an AA6082 alloy substrate. The reinforcement of the composite has been generated by the direct nitridation reaction of the feed powder with the carrier gas (N2) heated by an HPDL beam during the fabrication of the coating. The coating obtained consists of nano-sized AlN particles in an aluminium matrix, and the crystalline structure of the obtained AlN depends on the characteristics of the powder used. In this work, the influence of the feed powder composition is studied by
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Rams, J., M. Campo, and A. Ureña. "Sol-gel coatings to improve processing of aluminium matrix SiC reinforced composite materials." Journal of Materials Research 19, no. 7 (2004): 2109–16. http://dx.doi.org/10.1557/jmr.2004.0270.

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This paper analyses the influence of the inner structure of a SiO2 coating deposited on SiC particles by a sol-gel route on reactivity and wettability between SiC particles and molten aluminium during composite manufacturing. Different heat treatments were applied to the sol-gel coatings to change the porous structure of the amorphous silica. The coatings subjected to the mildest heat treatment were more reactive with molten aluminium, enriching the Si content of the matrix composite, and hence inhibiting direct reaction of the SiC particles and the formation of aluminium carbide. Thermal anal
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Xu, Xue Feng, B. X. Ma, Feng Chen, and Wei Peng. "Study on Effect of Composite Particles in Polishing Process and Its Mechanism." Advanced Materials Research 24-25 (September 2007): 155–59. http://dx.doi.org/10.4028/www.scientific.net/amr.24-25.155.

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In this paper, mixed slurries containing silica abrasives and polystyrene (PS) polymer particles in deionized water at pH 10.5 have been evaluated for silicon wafer polishing. By applying the theory of electric double layer model, the effect of the particle interactions in mixed slurry is investigated. Zeta potential measurements and TEM images have been used to show the formation of composite particles. The polishing mechanism with composite particles slurries is discussed. Polishing experiments with the mixed slurries formed by coating smaller (~30nm) abrasives onto softer and larger (~2000n
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Aldwell, Barry, Shuo Yin, Kevin A. McDonnell, Daniel Trimble, Tanvir Hussain, and Rocco Lupoi. "A novel method for metal–diamond composite coating deposition with cold spray and formation mechanism." Scripta Materialia 115 (April 2016): 10–13. http://dx.doi.org/10.1016/j.scriptamat.2015.12.028.

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Hu, Jin, Shawei Tang, and Zaiyang Zhang. "Microstructure and formation mechanism of cerium conversion coating on alumina borate whisker-reinforced AA6061 composite." Corrosion Science 50, no. 11 (2008): 3185–92. http://dx.doi.org/10.1016/j.corsci.2008.08.020.

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34

Belov, Evgeny A., Konstantine V. Nadaraia, Dmitry V. Mashtalyar, et al. "Composite Coatings Formed on PEO Pretreated MA8 Magnesium Alloy in Aqueous Suspension of PTFE." Key Engineering Materials 885 (May 2021): 95–102. http://dx.doi.org/10.4028/www.scientific.net/kem.885.95.

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The paper presents results of the composite polymer-containing layers formation by plasma electrolytic oxidation (PEO) with subsequent application of the superdispersed polytetrafluoroethylene (SPTFE) aqueous suspension. The corrosion properties and adhesion of coatings have been investigated using potentiodynamic polarization and scratch tests. Incorporation of SPTFE decreased the corrosion current density for composite layers by more than 3 orders of magnitude in comparison with the base PEO-coating and increased the coatings adhesion by 30 %.
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BUITKENOV, Dastan, Bauyrzhan RAHADILOV, Zhuldyz SAGDOLDINA, Nurgamit KANTAI, and Nurgamit KANTAI. "INFLUENCE OF STRUCTURAL-PHASE CONDITION ON THE MECHANICAL-TRI BOLOGICAL PROPERTIES OF Ti3SiC2 COATINGS OBTAINED BY THE DETONATION METHOD." Tribologia 287, no. 5 (2019): 25–32. http://dx.doi.org/10.5604/01.3001.0013.6558.

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The article provides the results of the research of the structure and properties of powder coatings based on titanium carbosilicide Ti3SiC2 obtained by detonation spraying on the surface of tool steel U9/У9 (equivalent to N9). Micro-indentation methods and abrasive wear tests for mechanical and tribological properties of Ti3SiC2 based coatings were conducted. The microstructure of the coating has a layered structure. The border between the coating and the base has a characteristic crinkled appearance. It was determined that the phase composition of the coatings changes during detonation sprayi
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Buketov, Andriy, Oleksandr Sapronov, Mykola Brailo, et al. "The Use of Complex Additives for the Formation of Corrosion- and Wear-Resistant Epoxy Composites." Advances in Materials Science and Engineering 2019 (August 20, 2019): 1–5. http://dx.doi.org/10.1155/2019/8183761.

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The corrosion resistance and hydroabrasive resistance of the developed epoxy composite coatings are investigated in this paper. The analysis of the penetration index change after τ = 50–150 days of immersion in a water medium and 10% sulfuric acid solution is carried out. The optimal ratio of the modifier and nanodispersed (Si3N4, Al2O3, AlN, and TiN) and fibrous (viscose, polyamide, matka silk, rong, and cashmere) fillers in the epoxy binder is determined. It was allowed to slow down the process of electrochemical reaction on the metal surface. The penetration of aggressive media in such a co
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Lin, Li, Jia-jie Kang, Tian-shun Dong, Guo-lu Li, Hai-dou Wang, and Jian-long Ma. "Formation mechanism of supersonic plasma-sprayed nanostructured composite ceramic coatings." Vacuum 117 (July 2015): 40–46. http://dx.doi.org/10.1016/j.vacuum.2015.03.014.

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Ksiazek, Marzanna, Ilona Nejman, and Lukasz Boron. "Investigation on Microstructure, Mechanical and Wear Properties of HVOF Sprayed Composite Coatings (WC–Co + CR) On Ductile Cast Iron." Materials 14, no. 12 (2021): 3282. http://dx.doi.org/10.3390/ma14123282.

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Recent work indicates that the high-velocity oxy-fuel (HVOF) thermal spraying WC–Co coatings have been used to enhance the wear resistance of various engineering components in a variety of industrial environments. In the present work, WC–Co powder, containing Cr particles in an amount of 10%, was deposited on ductile cast iron with the HVOF thermal spray coating technique. An investigation was conducted to determine the role of Cr particles in the WC–Co coating produced with the HVOF technique on microstructure, mechanical, and wear properties in a system of type: WC-Co coating/ductile cast ir
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39

Li, Wei. "Study on Interface Structure and In Situ Formation Mechanism in Laser Surface Ceramic Process." Advanced Materials Research 538-541 (June 2012): 1847–51. http://dx.doi.org/10.4028/www.scientific.net/amr.538-541.1847.

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Laser ceramic modification technology is an effective way to improve the surface performance of titanium alloy. This paper summarized the in situ formation mechanism of ceramic phases and the interface structure between ceramic phases and the matrix during the laser ceramic process on the surface of titanium alloy. The future research area was also indicated that theoretical study on composite ceramic coating preparation should be strengthened by combining the laser alloying and in situ formation technology on the surface of titanium alloy.
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40

Haberer, M., G. Zak, C. B. Park, M. Paraschivoiu, and B. Benhabib. "Fluid mechanics of slot-coating in photopolymer-based rapid composites manufacturing." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 217, no. 1 (2003): 65–79. http://dx.doi.org/10.1243/095440603762554622.

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This paper describes the fluid mechanics of the slot-coating process in the context of rapid layered manufacturing. It has been conjectured that slot-coating would successfully address a number of common difficulties encountered in the formation of thin layers from a highly viscous fibre—photopolymer composite liquid. The objective of the present study was therefore the development of an engineering analysis tool to assist with the design of a slot-coating-based liquid layer formation mechanism for use as an integral part of a lithography-based rapid layered composite parts manufacturing (RLCM
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41

Farkas, Eniko, Daniel Patko, Nguyen Quoc Khanh, Eva Toth, Ferenc Vonderviszt, and Robert Horvath. "Self-assembly and structure of flagellin–polyelectrolyte composite layers: polyelectrolyte induced flagellar filament formation during the alternating deposition process." RSC Advances 6, no. 95 (2016): 92159–67. http://dx.doi.org/10.1039/c6ra19010c.

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This study first reveals a new type of linearly growing polyelectrolyte multilayer buildup mechanism, when one of the components (PAH) induces the self-assembly of the oppositely charged component (flagellin), creating a filamentous nanostructured coating.
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42

Oyane, Ayako, Masaki Uchida, Yousuke Ishihara, and Atsuo Ito. "Ultra-Structural Study of the Laminin-Apatite Composite Layer Formed on Ethylene-Vinyl Alcohol Copolymer by a Biomimetic Process." Key Engineering Materials 284-286 (April 2005): 227–30. http://dx.doi.org/10.4028/www.scientific.net/kem.284-286.227.

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Mechanism of formation of a laminin-apatite composite layer on the surface of an ethylene-vinyl alcohol copolymer (EVOH) using a liquid phase coating process was investigated by transmission electron microscopy (TEM). In this coating process, an EVOH substrate is alternately dipped in calcium and phosphate solutions, and then immersed in a laminin-containing calcium phosphate (LCP) solution. From the results obtained by the present study, formation of the laminin-apatite composite layer on EVOH is likely to proceed via the following events. By the alternate dipping process, particulate amorpho
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43

Samyn, P., W. Van Paepegem, J. S. Leendertz, et al. "Large-Scale Evaluation of Constrained Bearing Elements Made of Thermosetting Polyester Resin and Polyester Fabric Reinforcement." Journal of Tribology 128, no. 4 (2006): 681–96. http://dx.doi.org/10.1115/1.2345413.

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Polymer composites are increasingly used as sliding materials for high-loaded bearings, however, their tribological characteristics are most commonly determined from small-scale laboratory tests. The static strength and dynamic coefficients of friction for polyester/polyester composite elements are presently studied on large-scale test equipment for determination of its bearing capacity and failure mechanisms under overload conditions. Original test samples have a diameter of 250 mm and thickness of 40 mm, corresponding to the practical implementation in the sliding surfaces of a ball-joint, a
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44

Hai, Hoang Tri, Jong Gwan Ahn, Dong Jin Kim, et al. "Production of Silver Coated Copper Powders by Electroless Plating Method." Advanced Materials Research 15-17 (February 2006): 570–74. http://dx.doi.org/10.4028/www.scientific.net/amr.15-17.570.

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Copper powders with very dense, uniform silver coating layer were prepared by electroless plating method in aqueous system at room temperature. Silver-copper composite powders were obtained by strictly controlling the activation and complexing process variables such as NH4OH/(NH4)2SO4 molar ratio, tartrate concentration, and feeding rate of silver ion solution. The mechanism of composite powders formation and their characteristics were discussed. It is noted that completely cleansing the oxide layers and protecting the copper particles surface from hydrolysis are key factors to obtain high qua
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45

Subramanian, R. V., and Eric A. Nyberg. "Zirconia and organotitanate film formation on graphite fiber reinforcement for metal matrix composites." Journal of Materials Research 7, no. 3 (1992): 677–88. http://dx.doi.org/10.1557/jmr.1992.0677.

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The formation and characterization of zirconia coatings on graphite/carbon filaments were investigated. The objective was to eliminate or minimize degradative chemical reactions and improve bonding at the metal/carbon-fiber interface when the coated fiber is used as reinforcement in metal matrix composites. Thin, homogeneous films of zirconium oxide, ZrO2, less than 1μm thick, were formed on carbon monofilaments (35 μm diameter) from a zirconium oxychloride solution in water (less than 1.0 wt. % ZrO2) by dip coating and heating. Chemical changes during thermal decomposition and polycondensatio
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46

Siddiqui, Naveed A., Jang Kyo Kim, Farjaad Muzaffar, and Arshad Munir. "Self-Healing Glass Fibres with Carbon Nanotube-Epoxy Nanocomposite Coating." Key Engineering Materials 334-335 (March 2007): 805–8. http://dx.doi.org/10.4028/www.scientific.net/kem.334-335.805.

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This paper reports a study based on a novel concept of ‘self-healing’ coatings applied onto the brittle fibre surface to reduce the stress concentrations and thus to improve the reinforcing efficiency in a composite. The individual E-glass fibres as well as rovings were coated with a carbon nanotube (CNT) reinforced epoxy composite. The tensile strengths were measured for the individual and bundle fibres, which were treated statistically to determine the Weibull parameters and thus to evaluate the notch sensitivity of the fibres with and without coating. The results indicate that the tensile s
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ABDERRAHMANE, Abderrahmane, Mohamed GACEB, Mohammed CHEIKH, and Sabine LE ROUX. "Wear Behavior and Microstructure of Thermally Sprayed NiCrBSiFeC and Composite NiCrBSiFeC-WC(Co) Coatings." Materials Science 27, no. 2 (2021): 175–83. http://dx.doi.org/10.5755/j02.ms.24478.

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In this work, a study was carried out on the friction and wear behavior of flame thermal sprayed NiCrBSiFeC-WC(Co) composite and NiCrBSiFeC coatings subjected to severe wear conditions. For this purpose, flame remelted samples were tested in reciprocating wear conditions based on a cylinder-on-flat configuration. The wear assessment of the coatings was achieved using scanning electron microscopy (SEM) and 3D optical profilometry. The microstructure and the mechanical properties of the coatings were investigated using SEM, EDS and XRD techniques as along with indentation tests. The tribological
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Rakoch, A. G., A. A. Gladkova, V. L. Kovalev, and A. G. Seferyan. "The mechanism of formation of composite microarc coatings on aluminum alloys." Protection of Metals and Physical Chemistry of Surfaces 49, no. 7 (2013): 880–84. http://dx.doi.org/10.1134/s2070205113070125.

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Dulski, Mateusz, Jacek Balcerzak, Wojciech Simka, and Karolina Dudek. "Innovative Bioactive Ag-SiO2/TiO2 Coating on a NiTi Shape Memory Alloy: Structure and Mechanism of Its Formation." Materials 14, no. 1 (2020): 99. http://dx.doi.org/10.3390/ma14010099.

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In recent years, more and more emphasis has been placed on the development and functionalization of metallic substrates for medical applications to improve their properties and increase their applicability. Today, there are many different types of approaches and materials that are used for this purpose. Our idea was based on a combination of a chemically synthesized Ag-SiO2 nanocomposite and the electrophoretic deposition approach on a NiTi shape memory substrate. As a result, silver-silica coating was developed on a previously passivated alloy, which was then subjected to sintering at 700 °C
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Zhu, Jun Liang, Xiao Hong Shi, He Jun Li, and Zi Bo He. "Crack Formation and Distribution of SiC Coating Prepared by CVD on Carbon/Carbon Composites." Key Engineering Materials 537 (January 2013): 28–31. http://dx.doi.org/10.4028/www.scientific.net/kem.537.28.

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In order to further study the cracks initiation and distribution mechanism of SiC coating, then optimize the coating structure and composition on surface of C/C composites, CVD method is used to deposit SiC coating on C/C composites and pyrolytic carbon. Through the analysis on the reasons of cracks initiation via SEM, the influence of different kinds of substrates and the toughening of SiC whisker on the cracks initiation and distribution are researched. The results show that the cracks easily form in the area near the defects and sample edge, and the cracks also mainly distribute in the dire
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