Статті в журналах: "Coating fabrication technique"

1

Renner, Peter, Ajinkya Raut, and Hong Liang. "High-Performance Ni-SiC Coatings Fabricated by Flash Heating." Lubricants 10, no. 3 (March 14, 2022): 42. http://dx.doi.org/10.3390/lubricants10030042.

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In this research, a novel flash heating coating application technique was utilized to create Ni-SiC coatings on carbon steel substrates with SiC contents much higher than is achievable using certain conventional coating techniques. Hardness profiles showed that the coatings improved the substrate by as much as 121%, without affecting the substrate. Tribotests showed that the wear performance was improved by as much as 4.7× in terms of the wear rate (mm3/N·m) for the same coating when using an Al2O3 counterpart. Pure SiC coatings as a reference were also fabricated. However, the SiC coatings experienced elemental diffusion of Fe from the carbon steel substrate into the coating during fabrication. This occurred due to the increased heat input required for pure SiC to fuse to the substrate compared to the Ni-SiC coatings and resulted in decreased tribological performance. Diffusion of Fe into the coating weakened the coating’s hardness and reduced the resistance to wear. It was concluded that ceramic–metallic composite coatings can successfully be fabricated utilizing this novel flash heating technique to improve the wear resistance of ceramic counterparts.

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2

Algailani, Hiba M., Adel K. Mahmoud, and Hanaa A. Al-Kaisy. "Fabrication of Ni-ZrO2 Nanocomposite Coating by Electroless Deposition Technique." Engineering and Technology Journal 38, no. 5A (May 25, 2020): 649–55. http://dx.doi.org/10.30684/etj.v38i5a.491.

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This work aims preparation of Ni-based nanocomposite coating by electroless deposition method onto stainless steel (316L) substrate, the present work will compare the effects of incorporation of ZrO2 nanoparticles at different percentages (1.25 wt %, 2.25 wt %, and 4.25 wt %) Ni-based electroless deposition coating of the bath nanocomposite on the phase structure, microhardness, and corrosion resistance is studied. Where the structure and chemical composition of nanocomposite coatings were studied by using (X-ray), (SEM) and (EDS). of Ni - ZrO2 nanocomposite coating exhibits much-increased microhardness and remarkably improved corrosion resistance.

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3

Monceau, Daniel, Djar Oquab, Claude Estournès, Mathieu Boidot, Serge Selezneff, and Nicolas Ratel-Ramond. "Thermal Barrier Systems and Multi-Layered Coatings Fabricated by Spark Plasma Sintering for the Protection of Ni-Base Superalloys." Materials Science Forum 654-656 (June 2010): 1826–31. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.1826.

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Aeronautic gas turbine blades, vanes and combustion chambers are protected against high temperature oxidation and corrosion by single or multilayered coatings. These include environmental coatings, generally based on Pt-modified Ni aluminides or MCrAlY overlays (where M = Ni and/or Co), thermal barrier coating (TBC) systems including a ceramic thermally insulating layer, and abradable seals. The present work shows the ability of the Spark Plasma Sintering technique to rapidly develop new coatings compositions and microstructures. This technique allows combining powders and metallic foils on a superalloy substrate in order to obtain multilayered coatings in a single short production step. Fabrication of MCrAlY overlays with local Pt and/or Al enrichments is shown, as well as fabrication of coatings made of -PtAl2, -PtAl, α-AlNiPt2, martensitic and (Ni,Pt)Al or Pt-rich ’ phases, including their doping with reactive elements. The fabrication of a complete TBC system with a porous and adherent Yttria Stabilized Zirconia (YSZ) layer on a bond-coating is also demonstrated, as well as the fabrication of a CoNiCrAlY-based cermet coating for abradable seal application. Difficulties of fabrication are reviewed, such as Y segregation, risks of carburization, local over-heating, or difficulty to coat complex shaped parts. Solutions are given to overcome these difficulties.

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4

Liu, Xinqian, Stephen Veldhuis, Ritch Mathews, and Igor Zhitomirsky. "Poly(ethyl methacrylate) Composite Coatings Containing Halogen-Free Inorganic Additives with Flame-Retardant Properties." Journal of Composites Science 6, no. 4 (March 28, 2022): 104. http://dx.doi.org/10.3390/jcs6040104.

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This investigation is motivated by the need for the development of polymer coatings containing inorganic flame-retardant materials (FRMs) and the replacement of toxic halogenated FRMs. A green strategy is reported for the fabrication of poly(ethyl methacrylate) (PEMA)-FRM composite coatings using a dip-coating method. The use of water-isopropanol co-solvent allows the replacement of regular toxic solvents for PEMA. The abilities to form concentrated solutions of high-molecular-mass PEMA and to disperse FRM particles in such solutions are the main factors in the fabrication of coatings using a dip-coating technique. Huntite, halloysite, and hydrotalcite are used as advanced FRMs for the fabrication of PEMA-FRM coatings. FTIR, XRD, SEM, and TGA data are used for the analysis of the microstructure and composition of PEMA-FRM coatings. PEMA and PEMA-FRM coatings provide corrosion protection of stainless steel. The ability to form laminates with different layers using a dip-coating method facilitates the fabrication of composite coatings with enhanced properties.

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5

Chen, Chien-Chih, and Chen-Ching Ting. "Photoelectrode Fabrication of Dye-Sensitized Nanosolar Cells Using Multiple Spray Coating Technique." International Journal of Photoenergy 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/629059.

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This paper presents a spray coating technique for fabricating nanoporous film of photoelectrode in dye-sensitized nanosolar cells (DSSCs). Spray coating can quickly fabricate nanoporous film of the photoelectrode with lower cost, which can further help the DSSCs to be commercialized in the future. This paper analyzed photoelectric conversion efficiency of the DSSCs using spray coated photoelectrode in comparison with the photoelectrode made with the doctor blade method. Spray coating can easily control transmittance of the photoelectrode through the multiple spray coating process. This work mainly used a dispersant with help of ultrasonic oscillation to prepare the required nano-TiO2solution and then sprayed it on the ITO glasses. In this work, a motor-operated conveyor belt was built to transport the ITO glasses automatically for multiple spray coating and drying alternately. Experiments used transmittance of the photoelectrode as a fabrication parameter to analyze photoelectric conversion efficiency of the DSSCs. The influencing factors of the photoelectrode transmittance during fabrication are the spray flow rate, the spray distance, and the moving speed of the conveyor belt. The results show that DSSC with the photoelectrode transmittance of ca. 68.0 ± 1.5% and coated by the spray coating technique has the best photoelectric conversion efficiency in this work.

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6

Oquab, Djar, Daniel Monceau, Yannick Thebault, and Claude Estournès. "Preliminary Results of the Isothermal Oxidation Study of Pt-Al-NiCoCrAlYTa Multi-Layered Coatings Prepared by Sparks Plasma Sintering (SPS)." Materials Science Forum 595-598 (September 2008): 143–50. http://dx.doi.org/10.4028/www.scientific.net/msf.595-598.143.

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MCrAlY coatings (where M = Co, Ni or Co/Ni) are widely used on turbine blades and vanes as oxidation and corrosion resistant overlays or as a bond-coating in thermal barrier coatings systems. MCrAlY are usually fabricated by Plasma Spraying, Physical Vapour Deposition, High Velocity Oxy-Fuel spraying or electrolytic techniques. The use of emergent Spark Plasma Sintering technique as a preparation method for NiCoCrAlYTa coatings has been presented previously [1]. SPS technique allows fast development of new coatings with a one-step fabrication of multilayered coatings. This work presents first results of the long term isothermal oxidation behaviour of Pt-Ni aluminide/NiCoCrAlYTa multi layered coatings. The obtained coating is dense and homogeneous. Isothermal oxidation up to 500 h at 1100°C leads to the formation of an adherent alumina scale with Y-rich precipitates and deep intergranular oxidation.

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7

Manna, Srikrishna, Milan Kanti Naskar, and Samar Kumar Medda. "Mesoporous silica-based abrasion resistant antireflective (AR)-cum-hydrophobic coatings on textured solar cover glasses by a spray coating technique." Materials Advances 3, no. 7 (2022): 3208–17. http://dx.doi.org/10.1039/d1ma01141c.

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The present work describes the fabrication of functionalized mesoporous silica based antireflective-cum-hydrophobic coatings on textured solar cover glasses via a spray-coating technique exhibiting enhanced photo-current density.

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8

Togan, Valentin-Cristian, Gheorghe Ionita, and Iulian Vasile Antoniac. "Corrosion Behavior of Ti6Al4V Coated with SiOx by PECVD Technology." Key Engineering Materials 583 (September 2013): 22–27. http://dx.doi.org/10.4028/www.scientific.net/kem.583.22.

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This paper aims to present the mechanism of PECVD SiOx coating thin layer technology on biomaterials, such as Ti and its alloys, with reference to the available literature. The thin organosilan coating surface will be analyzed by SEM technique and the corrosion behavior by EIS technique. The study shows that plasma-assisted fabrication allows us to prepare dense, homogeneous and high adherent coatings and thereby, will improve the corrosion resistance.

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9

Journal, Baghdad Science. "Variables Affecting Developments of Hydroxyapatite Coating by Using Electrophoretic Deposition Technique." Baghdad Science Journal 5, no. 3 (September 7, 2008): 423–26. http://dx.doi.org/10.21123/bsj.5.3.423-426.

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Electrophoretic Deposition (EPD) process offers various advantages like the fabrication of the ceramic coatings and bodies with dense packing, good sinterability and homogenous microstructure. The variables namely (applied potential, deposition time and sintering temperature) affected the development of hydroxyapatite (HAP) coatings. The coating weight and thickness were found to increase with the increase in applied potential or coating time. Sintering temperature was found to affect in change phases of the metal, furthermore the firing shrinkage of the HAP coating on a constraining metal substrate leads to serve cracking. XRD Characterization indicates the formation of a contamination free phase pure, and the optical micrographs show the relatively uniform distribution of the HAP coatings. Analysis of the stiochiometric HAP before EPD process and after sintering indicates that the structural aspects do not change i.e. the EPD in ethanol does not affect the structure of HAP powder.

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10

HE, YEDONG, KUN ZHANG, LIANGJIAN LI, and DEREN WANG. "NANO-/MICRO-COMPOSITE CERAMIC COATINGS PREPARED BY THERMAL PRESSURE FILTRATION OF SOL-GEL PAINTS." International Journal of Modern Physics B 20, no. 25n27 (October 30, 2006): 4649–54. http://dx.doi.org/10.1142/s0217979206041835.

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A novel coating technique, thermal pressure filtration of sol-gel paints (TPFSP), has been developed to prepare nano-/micro-composite ceramic coatings with controllable thickness, structure, and excellent high temperature properties. In this paper, the fabrication of two typical coatings, nano-/micro- Al 2 O 3- Y 2 O 3 composite coating and Al 2 O 3· SiO 2 fibers reinforced nano- ZrO 2-8wt.% Y 2 O 3 composite coating was demonstrated and their structures and properties were studied.

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11

Zhang, Yuting, Tingping Lei, Shuangmin Li, Xiaomei Cai, Zhiyuan Hu, Weibin Wu, and Tianliang Lin. "Candle Soot-Based Electrosprayed Superhydrophobic Coatings for Self-Cleaning, Anti-Corrosion and Oil/Water Separation." Materials 15, no. 15 (August 1, 2022): 5300. http://dx.doi.org/10.3390/ma15155300.

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The interest in candle soot (CS)-based superhydrophobic coatings has grown rapidly in recent years. Here, a simple and low-cost process has been developed for the fabrication of CS-based superhydrophobic coatings through electrospraying of the composite cocktail solution of CS and polyvinylidene fluoride (PVDF). Results show that the superhydrophobicity of the coating closely relates to the loading amount of CS which results in coatings with different roughnesses. Specifically, increasing the CS amount (not more than 0.4 g) normally enhances the superhydrophobicity of the coating due to higher roughness being presented in the produced microspheres. Further experiments demonstrate that the superhydrophobicity induced in the electrosprayed coating results from the synergistic effect of the cocktail solution and electrospray process, indicating the importance of the coating technique and the solution used. Versatile applications of CS-based superhydrophobic coatings including self-cleaning, anti-corrosion and oil/water separation are demonstrated. The present work provides a convenient method for the fabrication of CS-based superhydrophobic coatings, which is believed to gain great interest in the future.

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12

Lin, Chii-Ruey, Hong-Ming Chang, Minh-Khoa BenDao, Hsiu Hsien Chiang, and Wei-En Chen. "Fabrication of Antireflection Nanodiamond Particle Film by the Spin Coating Deposition Technique." International Journal of Photoenergy 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/517878.

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Diamond-based antireflective (AR) coatings were fabricated using a spin coating of diamond suspension at room temperature as nucleation enhancement procedure and microwave plasma enhanced chemical vapour deposition. Various working pressures were used to investigate their effect on the optical characterization of the as-deposited diamond films. Scanning electron microscopy (SEM) and atomic forced microscopy (AFM) were employed to analyze the surface properties of the diamond films. Raman spectra and transmission electron microscopy (TEM) also were used for analysis of the microstructure of the films. The results showed that working pressure had a significant effect on thickness, surface roughness, and wettability of the as-deposited diamond films. Deposited under 35 Torr or working pressure, the film possessed a low surface roughness of 13.8 nm and fine diamond grain sizes of 35 nm. Reflectance measurements of the films also were carried out using UV-Vis spectrometer and revealed a low reflectance value of the diamond films. The achievement demonstrated feasibility of the proposed spin-coating procedure for large scale production and thus opens up a prospect application of diamond film as an AR coating in industrial optoelectronic device.

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13

Lv, Xu Dong, Xue Tao Yuan, Zhi Qiang Hua, Lei Wang, Tao Li, Yu Gao Zhou, and Zhi Wei Wei. "Fabrication Lead Dioxide Coating by Pulse Current Method." Advanced Materials Research 581-582 (October 2012): 590–94. http://dx.doi.org/10.4028/www.scientific.net/amr.581-582.590.

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Prepared lead dioxide（PbO2） coating on a Ti substrate by pulse current technique. The effect of the pulse current density, pulse time and relaxation time on the morphology and electrochemistry properties of the coating was studied by means of scanning electron microscopy and electrochemistry station. Compared with lead dioxide fabricate by common electroplate technique, lead dioxide coating prepared by pulse current technique is more dense, without hole, better corrosion resisting property and more stable electrochemistry properties.

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14

Redolfi Riva, Eugenio Redolfi, Angela D’Alessio, and Silvestro Micera. "Polysaccharide Layer-by-Layer Coating for Polyimide-Based Neural Interfaces." Micromachines 13, no. 5 (April 28, 2022): 692. http://dx.doi.org/10.3390/mi13050692.

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Implantable flexible neural interfaces (IfNIs) are capable of directly modulating signals of the central and peripheral nervous system by stimulating or recording the action potential. Despite outstanding results in acute experiments on animals and humans, their long-term biocompatibility is hampered by the effects of foreign body reactions that worsen electrical performance and cause tissue damage. We report on the fabrication of a polysaccharide nanostructured thin film as a coating of polyimide (PI)-based IfNIs. The layer-by-layer technique was used to coat the PI surface due to its versatility and ease of manufacturing. Two different LbL deposition techniques were tested and compared: dip coating and spin coating. Morphological and physiochemical characterization showed the presence of a very smooth and nanostructured thin film coating on the PI surface that remarkably enhanced surface hydrophilicity with respect to the bare PI surface for both the deposition techniques. However, spin coating offered more control over the fabrication properties, with the possibility to tune the coating’s physiochemical and morphological properties. Overall, the proposed coating strategies allowed the deposition of a biocompatible nanostructured film onto the PI surface and could represent a valid tool to enhance long-term IfNI biocompatibility by improving tissue/electrode integration.

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15

CHANG, L., E. S. THIAN, J. SUN, J. Y. H. FUH, G. S. HONG, Y. S. WONG, and W. WANG. "FABRICATION OF FUNCTIONALLY GRADED HYDROXYAPATITE/TITANIUM OXIDE COATING VIA DROP-ON-DEMAND TECHNIQUE." Nano LIFE 02, no. 01 (March 2012): 1250009. http://dx.doi.org/10.1142/s1793984411000438.

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Hydroxyapatite (HA) and titanium oxide (TiO2) suspensions were utilized to fabricate the functionally graded coating via the Drop-on-Demand (DOD) micro-dispensing technique. A three-layered structure was formed, with a bottom 100% TiO2 layer, an intermediate layer consisting of 50% TiO2 and 50% HA, and a top 100% HA layer. The coating was then subjected to various characterizations, including scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), fourier transform infrared spectroscopy (FTIR), contact angle measurement, and adhesion test. The SEM, XRD, and FTIR techniques revealed that the DOD technique did not change the morphology, phase, and chemical composition of the coating materials. In addition, EDS results demonstrated the graded elemental distribution within the layer which confirmed the versatility of the DOD technique. A coating thickness of 20 μm was achieved, with a critical load to failure at 59 mN.

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16

Alvankarian, Jafar, Mitra Damghanian, and Majlis Burhanuddin Yeop. "Thick-Film Deposition of High-Viscous Liquid Photopolymer." Advanced Materials Research 254 (May 2011): 5–8. http://dx.doi.org/10.4028/www.scientific.net/amr.254.5.

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There are high interests among the researchers and industries for effective deposition of thick layer liquid photo-resists with applications such as fabrication of microfluidics and polymeric membranes using lithography. In this paper, we study performance of different techniques of coating for thick layers of SU-8 using spin coating, self planarization and a technique of sandwiching the resin between two parallel solid plates. Deposition using spin coaters for SU-8 2075 is limited hardly to around 250 µm with some irregularities such as edge-beads. Self-planarization requires enough resting time. We have achieved a thickness of around 1 mm in a single coating but is limited to only thick layers in reasonable time. The sandwich technique can be used for any thickness and is very fast. We present here a comparison of the three mentioned methods according to our observed data of the coating time, uniformity of the coating surface and capability of coating thick layers for a high viscosity SU-8 2075 that is employed in fabrication of microfluidics micro-structures.

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17

Baufeld, Bernd, and Omer Van der Biest. "Development of Thin Ceramic Coatings for the Protection against Temperature and Stress Induced Rumpling of the Metal Surface of Turbine Blades." Key Engineering Materials 333 (March 2007): 273–76. http://dx.doi.org/10.4028/www.scientific.net/kem.333.273.

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In order to obtain a protection against temperature and stress induced detrimental rumpling of the metal surface of turbine blades, thin ceramic coatings are suggested. As a cheap and fast method for the fabrication of a ceramic zirconia coating, electrophoretic deposition on a Ni based superalloy is described. Crack free, 0.15 mm thick coatings with homogenous morphology were obtained. The Young’s modulus and the damping property of the ceramic coating, derived from the impulse excitation technique, are investigated as a function of the temperature up to 1000°C.

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18

Xu, Jin Fu, Xiao Qin Ding, Xiao Yun Han, Hang You, Xian Rui Wang, and Cui Liang. "Microstructure and Properties of Ni60 Self-Fluxing Alloy Coatings Fabricated by Spark Plasma Sintering." Applied Mechanics and Materials 52-54 (March 2011): 639–46. http://dx.doi.org/10.4028/www.scientific.net/amm.52-54.639.

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We report the fabrication of Ni60 self-fluxing alloy coatings on the substrate of 45 steel via spark plasma sintering technique. The microstructure and interface bonding of the coatings have been investigated systematically. The results suggest that the as-prepared coatings possess fine grains, little porosity and with hard-phases (CrB, Cr7C3, Ni3B) dispersed within the substrate (γ-Ni). The coatings are jagged and embedded to the substrate due to the elements diffusion during the SPS process. A solid interfacial metallurgy bonding can be achieved between the coating and substrate and the hardness of the coating is ~597.5 HV0.3. The hardness of the transition layer present a gradient distribution ranged from 597.5 HV0.3 to 209.6 HV0.3. The bonding strength between the coating and substrate is measured to be ~710MPa. The volume abrasive wear rate of the coating is ~5.43 × 10-2cm3.

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19

Sun, Jie, Lei Chang, Eng San Thian, Jin Lan Li, Jerry Y. H. Fuh, Geok Soon Hong, Yoke San Wong, and Ee Jen Wang. "Bio-Inspired Organic-Inorganic Composite Coatings for Implants via a Micro-Dispensing Technique." Advanced Materials Research 500 (April 2012): 662–72. http://dx.doi.org/10.4028/www.scientific.net/amr.500.662.

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nanohydroxyapatite (nHA) and collagen were utilized to fabricate the bio-inspired organic-inorganic composite coating (OICC) via the Drop-on-Demand (DoD) micro-dispensing technique, which could flexibly construct multi-layer structures with varied materials composition within a layer and /or among layers reliably. This technique has been further investigated on its capability of OICC fabrication with regards to various materials (hydroxyapatite and collagen) as well as its dispensing parameters. A four-layered structure was formed, with the sequence of nHA-collagen-nHA-collagen from bottom to top. The dispensing parameters were also investigated with regards to the characteristics of the OICC fabrication. The coating was then subjected to various characterizations including scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS) and adhesion test. SEM and XRD results revealed that the DoD micro-dispensing technique did not change the morphology and phase of these two coating materials. And the results of EDS further demonstrated the corresponding elemental distributions within the four-layered coating structure which demonstrated the feasibility of the DoD micro-dispensing technique for the fabrication of thin-layered OICC.

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20

Dejang, Nuchjira. "Fabrication NiAl/Cu Composite Powder for Thermal Spray Coating." Applied Mechanics and Materials 866 (June 2017): 240–43. http://dx.doi.org/10.4028/www.scientific.net/amm.866.240.

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The NiAl/Cu feedstock powder was prepared by Cu coating on NiAl powder using electroplating technique. The NiAl (NS450, Metco Sulzer) powder was deposited Cu+ from CuSO4 solution at cathode with vary time process (60, 80 and 100 min). The microstructure and element of NiAl/Cu powders were investigated by scanning electron microscope (SEM) and energy dispersion of X-ray (EDX). The morphology of powder were appeared the Cu element holding all of surface NiAl particles. The chemical composition in powder using X-ray diffraction were presented the Cu phase with time process. The phase compounds were presented the Ni, Al and Cu phases. Then, it was appeared the new phase of Cu2O at 100 min time deposited. Therefore, it was low contentThe EDX analysis was supported the Cu cover on the surface NiAl powder. In SEM micrograph of NiAl/Cu cross-section coating were presented the completed structure coating of thermal spray technicque. In addition, the Cu content was improved melted particles by investigated increased lamellar of materials. The Cu lamella was distributed between Ni layers. It was confirmed that NiAl/Cu feedstock powder was fabricated by simple technique.

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21

Yurukcu, Mesut, Fatma M. Yurtsever, Serkan Demirel, and Tansel Karabacak. "Conformality of PVD shell layers on GLAD-nanorods investigated by Monte Carlo simulations." MRS Advances 5, no. 43 (2020): 2241–48. http://dx.doi.org/10.1557/adv.2020.335.

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AbstractThe quality of the shell coating around nanorods is critical in device applications. Conventional physical vapor deposition (PVD) techniques can be utilized for highly conformal shell coating formation in core-shell structure devices. To identify scalable fabrication techniques for conformal shell coatings, Monte Carlo (MC) simulations of PVD growth were performed under different atomic flux distributions and angles on arrays of glancing angle deposition (GLAD) nanorods, which were also generated by MC simulations. We investigated the conformality of PVD films (shell) around GLAD rod arrays (core) and analyzed the thickness uniformity of the shell layer across the sidewalls of rods. Our results show that Angular Flux-Normal Angle (A-NAD), which might correspond to high-pressure sputter deposition at normal incidence (HIPS at θ = 0o) can generate better conformal shell coating compared to others. In Uniform Flux-Normal Angle technique (U-NAD), which corresponds to a thermal evaporation deposition, the growth suffers from poor sidewall coverage. In addition, introducing a small angle to the flux also improves the shell conformality. Therefore, high-pressure sputter deposition technique is expected to provide superior conformality for a catalyst or semiconductor coating around base nanorods, for example for fuel cell and solar cell applications, with the help of obliquely incident atoms of the HIPS flux.

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Wiman, Panya, Thublaor Tummaporn, Opat Witthayarungruengsri, and Thamrongsin Siripongsakul. "Fabrication of (Mn_xCo_1-x)₃O₄ Coated Stainless Steel AISI 430 by Electrodeposition with AC+DC Signals." Key Engineering Materials 728 (January 2017): 117–22. http://dx.doi.org/10.4028/www.scientific.net/kem.728.117.

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A ferritic stainless steel (FSS) AISI 430 coated by (MnxCo1-x)3O4 spinel has been intensively studied for its potential in application as an interconnect of a solid oxide fuel cell (SOFC). In this study, in order to develop fabrication of (MnxCo1-x)3O4 coatings, Mn-Co coatings on AISI 430 by an electrodeposition technique was adopted. The electric direct current (DC) and alternative current (AC) modulated DC (AC+DC) signals were utilized to drive voltage levels for electrodeposition. By varying the duty of the AC+DC signals from 25 % to 50 %, the ratio of Mn and Co composition in the coating changed, consequently by this technique it is possible to adjust the composition of binary alloy coating. The fabricated coatings also exhibited different morphologies indicating nucleation and grain growth process of various oxide scales of Mn-Co. The oxidation behavior is also investigated to evaluate the quality of the coatings.

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LU, Yun, Mohd Afif BIN MOHD, Hiromasa SATO, Shunsuke TAKAYA, Hiroshi ASANUMA, and Hiroyuki YOSHIDA. "J0450105 Fabrication and investigation of Ti coatings on steel balls by mechanical coating technique." Proceedings of Mechanical Engineering Congress, Japan 2014 (2014): _J0450105——_J0450105—. http://dx.doi.org/10.1299/jsmemecj.2014._j0450105-.

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Zheng, Liyu, Heping Li, Jun Zhou, Xinluo Tian, Zhongyang Zheng, Long Wang, Xinyun Wang, and Youwei Yan. "Layer-structured Cr/CrxN coating via electroplating-based nitridation achieving high deuterium resistance as the hydrogen permeation barrier." Journal of Advanced Ceramics 11, no. 12 (November 29, 2022): 1944–55. http://dx.doi.org/10.1007/s40145-022-0658-3.

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AbstractHydrogen isotope permeation through structural materials is a key issue for developing nuclear fusion energy, which will cause fuel loss and radioactive pollution. Developing ceramic coatings with high thermal shock and hydrogen resistance is an effective strategy to solve this issue. In this work, a layer-structured Cr/CrxN coating was successfully fabricated by a facile electroplating-based nitridation technique, which is easy, facile, and applicable to coating complex-shaped substrates. The Cr/CrxN coating, composed of a bottom Fe/Cr interdiffusion zone, a middle Cr layer, and a top CrxN layer, exhibits high bonding strength, high anti-thermal-shock ability, and high deuterium permeation resistance. Its bonding strength achieves 43.6 MPa. The Cr/CrxN coating remains intact even after suffering 300 thermal shock cycles under a 600 °C-water condition. Through optimizing the nitridation temperature, the Cr/CrxN coating achieves a deuterium permeation reduction factor (PRF) as high as 3599 at 500 °C. Considering its scalable fabrication technique and considerable properties, the developed Cr/CrxN coating may serve as a novel high-performance hydrogen permeation barrier in various fields.

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Haleem, Azhar M. "Fabrication and Characterization for Phosphate Nanofertilizer through Polymer Coating Technique." Engineering and Technology Journal 38, no. 1B (November 12, 2020): 34–40. http://dx.doi.org/10.30684/etj.v38i1b.576.

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Many organic and inorganic materials were used to enhance plant growth and soil fertility, in the present study phosphate and polyvinyl alcohol ( PVA) was used to prepare nanocapsules fertilizer by using Emulsification Solvent Diffusion Method (ESDM), nanocapsules of phosphate and polymer provide long-term sustained-release preparations, ensure long existence of fertilizer in attach with the plant. Particle size distribution was evaluated in addition to particle shapes were characterized by Transmission Electron Microscope (TEM), the activity of Nano-fertilizer was studied on Nigella sativa production and its extracts activity. The emulsification solvent diffusion method (ESDM) provided a good yield of P-nanofertilizer, nanoparticles size distribution ranged 40-150nm with particle size range 74.23nm

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26

Wang, Zhi De, Jing Li, Zhen Wei Guan, Yu Zhong Zhang, Yan Wang, and Zhi Yong Wang. "Fabrication and Evaluation of an Amino Modified Epoxy Coating for Anti-Scouring and Anti-Corrosion Application." Materials Science Forum 815 (March 2015): 684–89. http://dx.doi.org/10.4028/www.scientific.net/msf.815.684.

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Excellent performance is necessary for compressor blade when aircraft engine serves in harsh environment, where it will go through scouring from jet-stream and extraneous sand, shaking of blades and corrosion from corrosive medium, taking moisture, salt, SO2 for example. Due to the shortage of scouring resistant and anti-corrosion property, shedding of damaged coating is a fundamental reason for the breakdown of aircraft engine blades, which is also the technique bottleneck that hinders the engineering application of compressor blades. Aiming at such problems, an amino modified epoxy coating which performed excellent scouring resistent and anti-corrosion property was fabricated on blades in this paper. Physical properties, anti-corrosion performance, abrasion resistant profiles and scouring resistant test were comprehensively evaluated. Results showed that the coating displayed a high hardness (pendulum hardness 0.9), overlong pot life, well anti-corrosion performance and excellent scouring resistant property. Pot life extends from 8h which is that of common coatings to 36h, so that it is benefit to large scale coating in engineering application. The anti-corrosion performance is similar to traditional aluminizing/inorganic silicate protect coatings, and abrasion resistant property is superior to common protect coatings. Moreover, scouring resistance performance is 3~4 times that of traditional coatings. Hence, such protective coatings could ensure the long lasting of blades protection.

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27

Patil, Deepak Rajaram, Venkateswarlu Annapureddy, J. Kaarthik, Atul Thakre, Jun Akedo, and Jungho Ryu. "Piezoelectric Thick Film Deposition via Powder/Granule Spray in Vacuum: A Review." Actuators 9, no. 3 (July 23, 2020): 59. http://dx.doi.org/10.3390/act9030059.

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Conventional thin-film processing techniques remain inadequate for obtaining superior dense ceramic thick films. The incompatibility of ceramic films prepared via other methods, such as screen printing, spin coating, and sputtering, is a major obstacle in the fabrication of thick film-based ceramic electronic components. The granule spray in vacuum (GSV) processes and aerosol deposition (AD) are important coating approaches for forming dense ceramic thick films featuring nanoscale crystallite structures at room temperature, which offer excellent material properties and facilitate cost-effective production. AD ceramic coatings require the acceleration of solid-state submicron ceramic particles via gas streams with a velocity of a few hundred meters per second, which are then wedged onto a substrate. This process is economical and particularly useful for the fabrication of piezoelectric thick film-based microactuators, energy harvesters, sensors, and optoelectronic devices. More recently, the GSV technique was improved to achieve more uniform and homogeneous film deposition after AD. This review article presents a detailed overview of the AD and GSV processes for piezoelectric thick films in terms of recent scientific and technological applications.

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Kuddus, Abdul, Samia Tabassum, and Abu Bakar Md Ismail. "Fabrication of Facile Synthesized ZnO/CuO Heterojunction Solar Cell Using Spin Coating Technique." Advanced Science, Engineering and Medicine 11, no. 12 (December 1, 2019): 1266–72. http://dx.doi.org/10.1166/asem.2019.2474.

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Simulation and experimentally investigation on cupric oxide (CuO) and zinc oxide (ZnO) based heterojunction solar cells (HJSC) fabricated using the sol–gel spin coating technique has been presented in this contribution. It is seen from simulated results, the photoconversion efficiency (PCE) of the hetero-junction solar cells employing with structure FTO/ZnO/CuO/Al can be enhanced through engineering on the thickness of photoactive layers, band gap and carrier concentration of photoactive materials. AMPS-1D simulated result showed cells efficiency of ∼5.5%, current density (Jsc) of 6 mA/cm2, open circuit voltage (Voc) of 0.9 V and fill-factor (FF) of 80%. Whereas solar cell fabricated with spin coating technique using optimized parameters from simulated results with conventional structure demonstrated a power conversion efficiency exceeding 1.15% with Vocof 1.36 V, Jsc of 1.99 mA/cm2 and FF of 53% without electron transport layer (ETL), hole transport layer (HTL) and anti-reflecting coating (ARC). Deposited film properties like structural, surface morphological, photovoltaic and optical were studied by using X-ray diffraction (XRD), scanning electron microscopy (SEM), and light current density–voltage (J–V) with AM1.5 solar simulator and UV-vis Spectroscopy. Although there is a variation between simulation and experimental results due to open air fabrication environment with no charge transport layers and no anti-reflection coating, this value of inorganic HJSC efficiency is possibly the highest reported for a ZnO/CuO interface fabricated using spin coating technique that highlights spin coating as a promising technique for inexpensive and scalable fabrication of ZnO/CuO based hetero-junctions solar cell.

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29

Hamagami, Junichi, Ryo Araki, Shohei Onimaru, Hiroyuki Oda, G. Kawamura, and Atsunori Matsuda. "Low Temperature Preparation and Optical Hydrogen Response of Pd/Titania Composite Film." Key Engineering Materials 485 (July 2011): 275–78. http://dx.doi.org/10.4028/www.scientific.net/kem.485.275.

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Photocatalytic titania coatings loaded with palladium catalyst were prepared onto soda-lime glass substrates by using a low temperature synthesis for application of optical hydrogen gas sensor. Titania coatings were formed on the glass substrate by a sol-gel spin-coating process followed by a hot water treatment at 55°C. Metallic palladium nanoparticles were deposited onto the titania coatings, which obtained with addition of poly(ethylene glycol) (PEG) and without PEG after the hot water treatment, by means of a photodeposition technique at room temperature using UV-light irradiation. The whole fabrication process was carried out under atmospheric pressure. The Pd-photodeposited titania coating obtained with addition of PEG after hot water treatment showed higher hydrogen sensing properties than that obtained without PEG.

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30

Banerjee, Parama Chakraborty, Tao Sun, Jonathan H. W. Wong, and Min Wang. "Fabrication of an Apatite/Collagen Composite Coating on the NiTi Shape Memory Alloy through Electrochemical Deposition and Coating Characterisation." Materials Science Forum 618-619 (April 2009): 319–23. http://dx.doi.org/10.4028/www.scientific.net/msf.618-619.319.

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To improve the biocompatibility and bioactivity of NiTi shape memory alloy (SMA), apatite/collagen composite coatings were fabricated on the surface of NiTi SMA at room temperature using the electrochemical deposition technique. Spherical apatite particles and fibrous collagen that formed the composite coating were visible under scanning electron microscope (SEM). The Ca/P ratio of the apatite component in the coating, as determined by energy dispersive X-ray spectroscopy (EDX), was about 1.38 which is slightly higher than that of octocalcium phosphate (OCP). X-ray diffraction result showed that the apatite was amorphous, which was due to the low temperature (i.e., room temperature) deposition process. The structure of the composite coatings was further characterized using Fourier transform infrared reflection spectroscopy (FTIR). It was also found that, compared to bare NiTi SMA samples, the wettability of as-deposited samples was increased because of the formation of the composite coating.

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31

Zhou, Jingzhong, Kuoteng Sun, Songqiang Huang, Weichen Cai, Yangzhi Wei, Liang Meng, Zhaowei Hu, and Wenge Li. "Fabrication and Property Evaluation of the Al2O3-TiO2 Composite Coatings Prepared by Plasma Spray." Coatings 10, no. 11 (November 20, 2020): 1122. http://dx.doi.org/10.3390/coatings10111122.

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The Al2O3-13 wt.% TiO2 (AT13) composite coatings were prepared on Q235 steel by plasma spray technique. The spray parameters were designed by the orthogonal experiments, and the properties of the coating were evaluated. Results showed that with respect to the bond strength of the coating, the optimized spraying parameters were the plasma current of 530 A, Ar flow of 41 L/min, H2 flow of 10 L/min, and spray standoff distance of 100 mm. The plasma spray process led to the transition of α-Al2O3 to γ-Al2O3, resulting in the increase in the porosity of AT13 coating prepared at nonoptimized parameters. Meanwhile, the porosity and cracks were also increased due to the decrease in the Ar flow and the increase in spray standoff distance. The low porosity, a few cracks, and the uniformly dispersed TiO2 particles contributed the enhanced properties including mechanical and corrosion behaviors of the AT13 coating prepared at optimized parameters. The bond strength, microhardness, and thermal shock resistance of the AT13 coating could reach 25.01 MPa, 1000.6 HV0.5, and 40 times when the coating was prepared at optimized parameters, respectively. Especially, the static Icorr of the AT13 coating prepared at optimized parameters was two order of magnitude less than that of Q235 steel. In addition, the erosion weight loss of Q235 steel could be decreased about 30 times by the protection of the AT13 coating.

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32

Zhang, Yingpeng, Qun Wang, Chidambaram Seshadri Ramachandran, Peng Guo, and Aiying Wang. "Microstructure and Performance of High-Velocity Oxygen-Fuel Coupled Physical Vapor Deposition (HVOF-PVD) Duplex Protective Coatings: A Review." Coatings 12, no. 10 (September 24, 2022): 1395. http://dx.doi.org/10.3390/coatings12101395.

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The paper summarizes the current development of high-velocity oxygen–fuel coupled physical vapor deposition (HVOF-PVD) duplex coatings as protective candidates. Following a detailed historical overview of HVOF and PVD technologies, the fabrication methods for duplex protective coatings are presented. The duplex coating superimposes the synergistic advantages of coatings deposited by HVOF and PVD, where the traditional weaknesses of each technique are modified to a great certain extent. Subsequently, the relation between structural characteristics of the duplex coatings and their mechanical, tribological, and corrosive behavior is described in detail. It is demonstrated that the duplex coatings show more excellent overall performance than coatings deposited by both HVOF and PVD separately. Finally, we summarize the protective performance and promising potential of HVOF-PVD duplex coating for applications as well as the research prospects of challenges in future.

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33

Safari, Javad, Sara Esteghlal, Malihe Keramat, and Mohammadreza Khalesi. "Fabrication of Chitosan/Pectin/PVA Nanofibers Using Electrospinning Technique." Nanoscience & Nanotechnology-Asia 10, no. 2 (February 25, 2020): 134–41. http://dx.doi.org/10.2174/2210681208666181002124634.

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Background: Electrospinning is a novel cost effective technique for generating nanofibers from a broad range of materials likely to be used as a coating film. Methods: In this project, pectin and chitosan solutions containing PVA were prepared and electrospun with separate syringes for the first time. The antimicrobial and physical properties of the novel chitosan/PVApectin/ PVA nanofibrous film were evaluated using some analysis techniques such as disc diffusion assay, scanning electron microscopy (SEM), transmission electron microscopy (TEM), viscosity and conductivity tests, and fourier-transform infrared spectroscopy (FTIR). Results: The results showed that simultaneously electrospinning the dispersion of chitosan/PVA (50:50) with pectin/PVA (50:50) led to the formation of thin nanofibers with the minimum number of beads. The results of FTIR analysis proved the dispersion of chitosan and PVA in nanofiber mats and the interaction of chitosan with pectin as well as PVA with pectin. Disc diffusion assay showed that nano-film could possess significant antibacterial activity against S. aureus at 37°C but had no effects against E. coli. Conclusion: Based on the results of this study, the novel chitosan/PVA-pectin/PVA nanofibrous film can be considered as a novel coating film for promising application in food packaging industry.

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34

Wang, Yu, and Jin-Tian Huang. "Large-Scale Fabrication of Graded Convex Structure for Superhydrophobic Coating Inspired by Nature." Materials 15, no. 6 (March 16, 2022): 2179. http://dx.doi.org/10.3390/ma15062179.

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The addition of toxic substances and poor durability severely limit the market applications of superhydrophobic coatings in the oil–water-separation industry, anti-icing, and self-cleaning surfaces. In order to solve the above problems, a stable, strong, fluorine-free superhydrophobic coating was prepared according to natural inspiration. In this study, polydivinylbenzene (PDVB) was produced by the hydrothermal method, and micro-nanoparticle clusters composed of PDVB particles of different sizes were prepared by controlling the ratio of raw materials, which was then attached to the substrate surface by a simple spraying technique. A rough coating with a lotus-leaf-like layered protruding structure was constructed by depositing particle clusters of different sizes. In the end, the prepared coating showed attractive superhydrophobicity, with a maximum contact angle (CA) that reached up to 160°. In addition, the coating had long-lasting superhydrophobic properties in various environments, such as common liquid and acidic and alkaline solutions. Moreover, in the oil–water-separation process, the superhydrophobic filter paper was still able to obtain a separation efficiency of more than 85% after being used 50 times, and it maintained a contact angle of >150°. At the same time, the coating had excellent dye resistance and self-cleaning performance.

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35

Khasim, Syed, Apsar Pasha, Nacer Badi, Adnen Ltaief, S. A. Al-Ghamdi, and Chellasamy Panneerselvam. "Design and development of highly sensitive PEDOT-PSS/AuNP hybrid nanocomposite-based sensor towards room temperature detection of greenhouse methane gas at ppb level." RSC Advances 11, no. 25 (2021): 15017–29. http://dx.doi.org/10.1039/d1ra00994j.

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36

Lu, Yun, Liang Hao, Kohta Kobayashi, Hiromasa Sato, Hiroyuki Yoshida, Su Jun Guan, and Jin Xiang Chen. "Fabrication and Photocatalytic Activity of Photocatalyst Coatings by Mechanical Coating Technique and the Oxidation at Relatively Low Temperatures." Applied Mechanics and Materials 719-720 (January 2015): 17–20. http://dx.doi.org/10.4028/www.scientific.net/amm.719-720.17.

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Titanium (Ti) coatings on alumina (Al2O3) balls fabricated by mechanical coating technique (MCT) were oxidized at relatively low temperatures. Crystal structure and microstructure of the coatings were investigated. Photocatalytic activity of the coatings was evaluated and discussed. The results showed that TiO2 films on Ti or Ti/TiO2 coatings were fabricated by the MCT and subsequent heat oxidation. The TiO2 is anatase phase if the heat oxidation temperature is under 773 K. The TiO2 is the mixed phases of anatase and rutile if the heat oxidation temperature is in the range of 673–973 K. Besides, rutile TiO2 is formed if the heat oxidation temperature is beyond 1073 K. Photocatalytic activity of anatase TiO2 is higher than rutile TiO2.

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37

Lu, Yun, Sujun Guan, Liang Hao, and Hiroyuki Yoshida. "Review on the Photocatalyst Coatings of TiO2: Fabrication by Mechanical Coating Technique and Its Application." Coatings 5, no. 3 (July 30, 2015): 425–64. http://dx.doi.org/10.3390/coatings5030425.

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38

Guan, Sujun, Liang Hao, Yun Lu, Hiroyuki Yoshida, and Hiroshi Asanuma. "Fabrication of Photocatalyst Composite Coatings of Cr-TiO2 by Mechanical Coating Technique and Oxidation Process." Coatings 5, no. 3 (September 11, 2015): 545–56. http://dx.doi.org/10.3390/coatings5030545.

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39

Hao, Liang, Yun Lu, Hiromasa Sato, and Kazuki Chiba. "Fabrication of Sn Coatings on Alumina Balls by Mechanical Coating Technique and Relevant Process Analysis." Advances in Materials Physics and Chemistry 02, no. 04 (2012): 126–29. http://dx.doi.org/10.4236/ampc.2012.24b033.

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40

USINSKAS, Pranas, Živilė STANKEVIČIŪTĖ, Gediminas NIAURA, Justinas ČEPONKUS, and Aivaras KAREIVA. "A Novel Approach for Accelerated Fabrication of Calcium Hydroxyapatite Thin Films." Materials Science 25, no. 4 (June 27, 2019): 365–68. http://dx.doi.org/10.5755/j01.ms.25.4.21251.

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In this study we demonstrate, that sol–gel route is suitable to quicker obtain calcium hydroxyapatite (Ca10(PO4)6(OH)2, CHAp) coatings on crystalline Si substrate by modified dip-coating technique. The substrate was dip-coated by precursor and dried for 10 minutes at 200 °C with following cooling using the heating block for 110 min and annealing at 650 °C. Ethylendiamintetraacetic acid and 1,2-ethandiol, and triethanolamine and polyvinyl alcohol were used as complexing agents and as gel network forming agents, respectively. The obtained coatings were characterized by X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), FTIR spectroscopy and contact angle measurements (CAM).

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41

Ahmed, Muhammad, Muhammad Shahid, Zulfiqar Khan, Ameen Ammar, Abdul Saboor, Amir Khalid, Asad Hayat, Adil Saeed, and Mehran Koohgilani. "Electrochemical Comparison of SAN/PANI/FLG and ZnO/GO Coated Cast Iron Subject to Corrosive Environments." Materials 11, no. 11 (November 11, 2018): 2239. http://dx.doi.org/10.3390/ma11112239.

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ZnO/GO (Graphene Oxide) and SAN (Styrene Acrylonitrile)/PANI (Polyaniline)/FLG (Few Layers Graphene) nanocomposite coatings were produced by solution casting and sol-gel methods, respectively, to enhance corrosion resistance of ferrous based materials. Corrosive seawater and ‘produced crude oil water’ environments were selected as electrolytes for this study. Impedance and coating capacitance values obtained from Electrochemical Impedance Spectroscopy (EIS) Alternating Current (AC technique) showed enhanced corrosion resistance of nanocomposites coatings in the corrosive environments. Tafel scan Direct Current (DC technique) was used to find the corrosion rate of nanocomposite coating. SAN/PANI/FLG coating reduced the corrosion of bare metal up to 90% in seawater whereas ZnO/GO suppressed the corrosion up to 75% having the impedance value of 100 Ω. In produced water of crude oil, SAN/PANI/FLG reduced the corrosion up to 95% while ZnO/GO suppressed the corrosion up to 10%. Hybrid composites of SAN/PANI/FLG coatings have demonstrated better performances compared to ZnO/GO in the corrosive environments under investigation. This study provides fabrication of state-of-the-art novel anti corrosive nanocomposite coatings for a wide range of industrial applications. Reduced corrosion will result in increased service lifetime, durability and reliability of components and system and will in turn lead to significant cost savings.

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42

Li, Xuelin, Zhengzheng Wang, Sadman Sakib, Ritch Mathews, and Igor Zhitomirsky. "Poly(Methyl Methacrylate) Coatings Containing Flame Retardant Additives from Suspensions in Water-2-Propanol." Molecules 26, no. 7 (March 31, 2021): 1974. http://dx.doi.org/10.3390/molecules26071974.

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A dip-coating technique is designed for deposition of poly(methyl methacrylate) (PMMA) from water/2-propanol mixture, avoiding the use of traditional toxic solvents. Solutions of PMMA macromolecules with high molecular weight (MW) are obtained for a water/2-propanol ratio of 0.15–0.33 and the solubilization mechanism is discussed. The ability to use concentrated PMMA solutions and high MW of the polymer are the key factors for the successful dip coating deposition. The coating mass for 10 g L−1 polymer solutions shows a maximum at a water/2-propanol ratio of 0.25. The deposition yield increases with the polymer concentration increase and with an increasing number of the deposited layers. PMMA deposits protect stainless steel from aqueous corrosion. The coating technique allows for the fabrication of composite coatings, containing flame-retardant materials (FRMs), such as commercial halloysite, huntite, hydrotalcite, and synthesized Al(OH)3, in the PMMA matrix. The FRM content in the coatings is modified by variation of the FRM content in colloidal suspensions. A fundamentally new method is developed, which is based on the salting out aided dispersive extraction of Al(OH)3 from the aqueous synthesis medium to 2-propanol. It is based on the use of hexadecylphosphonic acid molecules as extractors. The method offers advantages of reduced agglomeration.

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43

Xiao, Kening, Qichuan Huang, Jia Luo, Huansong Tang, Ao Xu, Pu Wang, Hao Ren, Donghuan Qin, Wei Xu, and Dan Wang. "Efficient Nanocrystal Photovoltaics via Blade Coating Active Layer." Nanomaterials 11, no. 6 (June 9, 2021): 1522. http://dx.doi.org/10.3390/nano11061522.

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CdTe semiconductor nanocrystal (NC) solar cells have attracted much attention in recent year due to their low-cost solution fabrication process. However, there are still few reports about the fabrication of large area NC solar cells under ambient conditions. Aiming to push CdTe NC solar cells one step forward to the industry, this study used a novel blade coating technique to fabricate CdTe NC solar cells with different areas (0.16, 0.3, 0.5 cm2) under ambient conditions. By optimizing the deposition parameters of the CdTe NC’s active layer, the power conversion efficiency (PCE) of NC solar cells showed a large improvement. Compared to the conventional spin-coated device, a lower post-treatment temperature is required by blade coated NC solar cells. Under the optimal deposition conditions, the NC solar cells with 0.16, 0.3, and 0.5 cm2 areas exhibited PCEs of 3.58, 2.82, and 1.93%, respectively. More importantly, the NC solar cells fabricated via the blading technique showed high stability where almost no efficiency degradation appeared after keeping the devices under ambient conditions for over 18 days. This is promising for low-cost, roll-by-roll, and large area industrial fabrication.

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44

Cui, Yan, Junqi Shen, Keping Geng, and Shengsun Hu. "Fabrication of FeCoCrNiMnAl0.5-FeCoCrNiMnAl gradient HEA coating by laser cladding technique." Surface and Coatings Technology 412 (April 2021): 127077. http://dx.doi.org/10.1016/j.surfcoat.2021.127077.

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45

Talal, J. H., D. B. Mohammed, and K. H. Jawad. "Fabrication of Hydrophobic Nanocomposites Coating Using Electrospinning Technique For Various Substrate." Journal of Physics: Conference Series 1032 (May 2018): 012033. http://dx.doi.org/10.1088/1742-6596/1032/1/012033.

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46

Wattanasiriwech, Darunee, Suthee Wattanasiriwech, and Ron Stevens. "A sol-powder coating technique for fabrication of yttria stabilised zirconia." Materials Research Bulletin 41, no. 8 (August 2006): 1437–46. http://dx.doi.org/10.1016/j.materresbull.2006.02.005.

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47

Zhao, Yang, Na Gao, Yufei Feng, Huan Shi, Wei Sun, Keke Shen, Yanbing Wang, Suqing Shi, and Yongkuan Gong. "Fabrication of robust biomimetic coating by integrated physisorption/chemical crosslinking technique." Applied Surface Science 453 (September 2018): 37–47. http://dx.doi.org/10.1016/j.apsusc.2018.05.071.

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48

Chingthamai, Natthika, Korakot Sombatmankhong, and Yossapong Laoonual. "Experimental Investigation of Electrospray Coating Technique for Electrode Fabrication in PEMFCs." Energy Procedia 105 (May 2017): 1806–12. http://dx.doi.org/10.1016/j.egypro.2017.03.523.

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49

Hu, Chao, Xinwen Liao, Qinghua Qin, and Gang Wang. "The Fabrication of Hierarchical Carbon Nanotube/carbon fibre/polyethylene Composites via Twin Screw Extruder." MATEC Web of Conferences 237 (2018): 01006. http://dx.doi.org/10.1051/matecconf/201823701006.

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In this research, the hierarchical carbon nanotube/carbon fibre/polyethylene (CNT/CF/PE) composites were fabricated via the conventional twin-screw extrusion technique. For this multi-component composite, 1% wt CNTs were uniformly coated onto the surface of CF by using spray coating method. The effect of CNTs and CFs as reinforcing fillers on the mechanical properties was investigated through mechanical test and Scanning Electron Microscopy (SEM) characterization. It has been found that with the content increase of CFs (i.e. 0% wt, 5% wt, 10% wt, 15% wt, 20% wt, 25% wt), both of tensile strength and tensile modulus exhibited an upward trend. Moreover, CF/PE composites with CNT coatings have higher mechanical performance than the counterparts without CNT coatings. The SEM results demonstrated that with the spray coating of CNTs onto CFs, the surface roughness of CFs was increased, thus contributing to the improvement of interfacial bonding between the reinforcement (CFs) and the matrix (PE).

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50

García-Rodríguez, Sonia, Antonio Julio López, Victoria Bonache, Belén Torres, and Joaquín Rams. "Fabrication, Wear, and Corrosion Resistance of HVOF Sprayed WC-12Co on ZE41 Magnesium Alloy." Coatings 10, no. 5 (May 24, 2020): 502. http://dx.doi.org/10.3390/coatings10050502.

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This study shows that WC-12Co coatings with low porosity and high wear and corrosion resistance can be applied by high velocity oxygen-fuel (HVOF) on a low melting and highly flammable ZE41 magnesium alloy. This provides a novel and promising use of the high-energy thermal spraying technique on low temperature melting substrates. The spraying distance used was 300 mm, which is between two and three times the recommended distanced for HVOF coating with WC-12Co on steels. Despite this, the WC-12Co coatings obtained were homogeneous, crack-free, and dense. The coatings were very well adhered to the substrates and the spraying distance allowed avoiding any thermal affectation of the substrate. The thickness of the coatings was limited to 45 μm to avoid a big mass increase in the samples. The effect of the number of layers, the O2/H2 ratio and the gas transport flow in the coating was studied. The coatings reduced the wear rate of the substrate by 104 times, making them wear resistant. Electrochemical corrosion tests were conducted to study the corrosion protection of the coatings, showing that it is possible to protect the magnesium substrate for 96 h in contact with 3.5 wt.% NaCl aqueous solution.

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