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Articles de revues sur le sujet « Nickel-Titanium-Carbon composites »

Auteur : Grafiati
Publié le 4 juin 2021
Mis à jour le 15 février 2022

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1

Krasovskyy, V. P., et N. A. Krasovskaya. « Study of the impregnation kinetics of basalt, carbon, oxide fibers with aluminum melts and its alloys ». Uspihi materialoznavstva 2021, no 2 (1 juin 2021) : 114–25. http://dx.doi.org/10.15407/materials2021.02.114.

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Wetting studies were performed by the sessile drop method using the capillary purification method of melt during the experiment in a vacuum of 2·10-3 Pa in the temperature range of 600–700 oC. The use of a dropper allows separate heating of the melt and the substrate, capillary and thermo vacuum cleaning of the melt, as well as thermo vacuum cleaning of the coatings surface. This is a model scheme of the impregnation process of non-metallic frames with matrix melts in the manufacture of composite materials by spontaneous free impregnation. Vanadium, copper and nickel metals were chosen for the coatings, which were sprayed on the materials by electron beam evaporation of metals in vacuum, and titanium, nickel powders for the coatings were used. The nature of the wetting angle dependence on the film thickness is a linear decrease in the angle with increasing film thickness. Studies have shown the possibility of using double films vanadium–copper, vanadium–nickel for the manufacture of composite materials from basalt fibers. The process of impregnation of basalt, carbon and oxide fibers with aluminum melts and its alloy with silicon in the temperature range 650–700 oC has been studied. The metal titanium, nickel powder coatings and films vanadium–copper, vanadium–nickel for the method of spontaneous free impregnation were used. Speciments of the composite material were obtained and the limit of destruction of these samples was determined. The bend strength of composites (basalt fiber 200 μm) is 270 MPa. Keywords: spontaneous free impregnation, composites, aluminium melts, basalt, carbon, oxide fibers, wetting, metal coatings and coverings.
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Pribytkov, G. A., I. A. Firsina, V. V. Korzhova, M. G. Krinitсyn et A. A. Polyanskaya. « SYNTHESIS OF COMPOSITE POWDERS «TIC – NICRBSI ALLOY BINDER» FOR CLADDING AND DEPOSITION OF WEAR-RESISTANT COATINGS ». Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional’nye Pokrytiya (Universitiesʹ Proceedings. Powder Metallurgy аnd Functional Coatings), no 2 (18 juin 2018) : 43–53. http://dx.doi.org/10.17073/1997-308x-2018-2-43-53.

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TiC + NiCrBSi binder metal matrix composites were obtained by self-propagating high-temperature synthesis (SHS) in the reaction powder mixtures of titanium, carbon (carbon black) and NiCrBSi alloy. It has been found that steady combustion in a stationary mode occurs when the content of the thermally inert metal binder in reactive mixtures does not exceed 50 vol.%. Porous SHS cakes were crashed and resulting granules were separated to fractions by screening to get the composite powder fraction necessary for coating application. Synthesis products were studied by optical and scanning electron microscopy, X-ray diffraction and electron microprobe analysis. It has been found that the average size of carbide inclusions depends on the content of thermally inert alloy powder in the reaction mixtures and can be purposefully regulated in a wide range. The microhardness of composite powder granules obtained by crushing the SHS conglomerates decreases monotonically with an increasing content of the metal binder having hardness less than that of titanium carbide. According to X-ray diffraction data, the titanium carbide lattice parameter turns out to be considerably less than values known for equiatomic titanium carbide. It has been found by electron microprobe analysis of carbide inclusions in the composite structure that the ratio of carbon and titanium mass contents is 0,21 as compared with 0,25 in equiatomic titanium carbide. Iron and silicon contents in the carbide are negligible, oxygen and nickel contents are below 1 wt.%, and chromium content is 2,5 wt.%. The analysis of known data on the effect of all the above-listed dopants on the titanium carbide lattice allows for a conclusion that the carbon deficit is a main reason of the lattice parameter reduction.
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Gopagoni, S., J. Y. Hwang, A. R. P. Singh, B. A. Mensah, N. Bunce, J. Tiley, T. W. Scharf et R. Banerjee. « Microstructural evolution in laser deposited nickel–titanium–carbon in situ metal matrix composites ». Journal of Alloys and Compounds 509, no 4 (janvier 2011) : 1255–60. http://dx.doi.org/10.1016/j.jallcom.2010.09.208.

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4

Curfs, C., A. E. Terry, G. B. M. Vaughan, Erich H. Kisi, M. A. Rodriguez et Å. Kvick. « Synthesis Mechanisms of the Combustion Synthesis of IntermetCers Composites ». Advances in Science and Technology 45 (octobre 2006) : 1029–34. http://dx.doi.org/10.4028/www.scientific.net/ast.45.1029.

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Combustion synthesis techniques have been applied to an equiatomic mixture of Aluminium, Nickel, Titanium and Carbon powders in order to obtain NiAl/TiC composites. Both combustion modes have been used: the Self-propagating High-temperature mode (SHS), in which the reaction propagates through the sample under the form of a heat wave and the Thermal Explosion mode (TES), in which the reaction occurs simultaneously in the complete sample. The reactions have been followed in-situ by time-resolved diffraction, using synchrotron X-rays for the SHS mode and neutrons for the TES mode. Scanning Electron Micrographs and X-ray diffraction patterns of the final product have shown that the same final products were obtained when the mixture was synthesised under both combustion modes: a composite made of small and round TiC particles (~1 micron) embedded into a matrix of larger NiAl grains (5 microns). However, the Time-Resolved Diffraction studies have shown that, even with the same final products, the two combustion modes follow two completely different routes. Thus, for the SHS mode, the reaction is triggered by the formation of Nickel Aluminide and 3 intermediate phases are observed, and for the TES mode, the self-sustained reaction starts with the formation of Titanium Carbide and no intermediate phases have been seen.
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5

Kotarska, Aleksandra, Tomasz Poloczek et Damian Janicki. « Characterization of the Structure, Mechanical Properties and Erosive Resistance of the Laser Cladded Inconel 625-Based Coatings Reinforced by TiC Particles ». Materials 14, no 9 (26 avril 2021) : 2225. http://dx.doi.org/10.3390/ma14092225.

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The article presents research in the field of laser cladding of metal-matrix composite (MMC) coatings. Nickel-based superalloys show attractive properties including high tensile strength, fatigue resistance, high-temperature corrosion resistance and toughness, which makes them widely used in the industry. Due to the insufficient wear resistance of nickel-based superalloys, many scientists are investigating the possibility of producing nickel-based superalloys matrix composites. For this study, the powder mixtures of Inconel 625 superalloy with 10, 20 and 40 vol.% of TiC particles were used to produce MMC coatings by laser cladding. The titanium carbides were chosen as reinforcing material due to high thermal stability and hardness. The multi-run coatings were tested using penetrant testing, macroscopic and microscopic observations, microhardness measurements and solid particle erosive test according to ASTM G76-04 standard. The TiC particles partially dissolved in the structure during the laser cladding process, which resulted in titanium and carbon enrichment of the matrix and the occurrence of precipitates formation in the structure. The process parameters and coatings chemical composition variation had an influence on coatings average hardness and erosion rates.
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Lin, Ya-Cheng, Andrey A. Nepapushev, Paul J. McGinn, Alexander S. Rogachev et Alexander S. Mukasyan. « Combustion joinining of carbon/carbon composites by a reactive mixture of titanium and mechanically activated nickel/aluminum powders ». Ceramics International 39, no 7 (septembre 2013) : 7499–505. http://dx.doi.org/10.1016/j.ceramint.2013.02.099.

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7

Zheng, Jing, Min Zhang, Teng Miao, Jingxia Yang, Jingli Xu, Njud S. Alharbi et Muhammad Wakeel. « Anchoring nickel nanoparticles on three-dimensionally macro-/mesoporous titanium dioxide with a carbon layer from polydopamine using polymethylmethacrylate microspheres as sacrificial templates ». Materials Chemistry Frontiers 3, no 2 (2019) : 224–32. http://dx.doi.org/10.1039/c8qm00467f.

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Herein, three dimensional (3D) macro-/mesoporous TiO2@C–Ni composites have been successfully fabricated, which endowed the composites with enhanced performance in catalysis and protein adsorption.
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Dong, L. L., W. Zhang, Y. Q. Fu, J. W. Lu, Y. Liu et Y. S. Zhang. « Synergetic enhancement of strength and ductility for titanium-based composites reinforced with nickel metallized multi-walled carbon nanotubes ». Carbon 184 (octobre 2021) : 583–95. http://dx.doi.org/10.1016/j.carbon.2021.08.030.

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9

Lin, Jia, Yihang Yang, Houan Zhang, Fenqiang Li et Yulin Yang. « Carbon nanotube growth on titanium boride powder by chemical vapor deposition : Influence of nickel catalyst and carbon precursor supply ». Ceramics International 46, no 8 (juin 2020) : 12409–15. http://dx.doi.org/10.1016/j.ceramint.2020.02.002.

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10

Rabin, Barry H. « Joining of Silicon Carbide/Silicon Carbide Composites and Dense Silicon Carbide Using Combustion Reactions in the Titanium-Carbon-Nickel System ». Journal of the American Ceramic Society 75, no 1 (janvier 1992) : 131–35. http://dx.doi.org/10.1111/j.1151-2916.1992.tb05454.x.

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RABIN, B. H. « ChemInform Abstract : Joining of Silicon Carbide/Silicon Carbide Composites and Dense Silicon Carbide Using Combustion Reactions in the Titanium-Carbon- Nickel System. » ChemInform 23, no 14 (22 août 2010) : no. http://dx.doi.org/10.1002/chin.199214328.

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12

Quade, Derek, Sadhan Jana et Linda McCorkle. « The influence of thin film adhesives in pullout tests between nickel–titanium shape memory alloy and carbon fiber reinforced polymer matrix composites ». Composites Part B : Engineering 176 (novembre 2019) : 107321. http://dx.doi.org/10.1016/j.compositesb.2019.107321.

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13

Quade, Derek, Sadhan Jana, Gregory Morscher, Manigandan Kannan et Linda McCorkle. « The effects of fiber orientation and adhesives on tensile properties of carbon fiber reinforced polymer matrix composite with embedded nickel-titanium shape memory alloys ». Composites Part A : Applied Science and Manufacturing 114 (novembre 2018) : 269–77. http://dx.doi.org/10.1016/j.compositesa.2018.08.019.

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14

Wang, Xiaobo, Zhipeng Li, Wen Zhan, Jesong Tu, Xiaohua Zuo, Xiangyi Deng et Boyi Gui. « Preparation and corrosion resistance of titanium-zirconium/nickel-coated carbon nanotubes chemical nano-composite conversion coatings ». Anti-Corrosion Methods and Materials 66, no 3 (7 mai 2019) : 343–51. http://dx.doi.org/10.1108/acmm-10-2018-2011.

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Purpose This study aims to expand the reliability and special functions of lightweight materials for high-end equipment and green manufacturing, so that it is the first such research to carry out nano-composite technology of nickel-coated carbon nanotubes (Ni-CNTs)-based titanium-zirconium chemical conversion on aluminum alloy substrate. Design/methodology/approach Corrosion behavior of various coatings was investigated using dropping corrosion test, linear polarization and electrochemical impedance spectroscopy. The results showed that the corrosion resistance of the nano-composite conversion coatings was significantly improved to compare with the conventional titanium-zirconium conversion coating. The morphology and microdomain characteristics of the nano-composite conversion coatings were characterized by SEM/eds/EPMA, which indicated that the CNT or Ni-CNTs addition promoting the integrity coverage of coatings in a short time. Findings Surface morphology of titanium-zirconium (Ti-Zr)/Ni-CNT specimens exhibited smooth, compact and little pores. The nano-composite conversion coatings are mainly composed of Al, O, C and Ti elements and contain a small amount of F and Zr elements, which illuminated that CNT or Ni-CNT addition could co-deposit with aluminum and titanium metal oxides. Originality/value The study of corrosion resistance of nano-composite conversion coatings and the micro-zone film-formation characteristics would be provided theoretical support for the development of basic research on surface treatment of aluminum alloys.
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15

Gawronski, J., et B. Pietrzyk. « Preliminary Characteristic of Composite Coatings C/Hap Produced Respectively by Rf Pacvd and Sol–Gel Methods ». Archives of Metallurgy and Materials 58, no 2 (1 juin 2013) : 569–72. http://dx.doi.org/10.2478/amm-2013-0039.

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The required high mechanical strength and the reliability of implants on one side and a lack of toxic elements in those materials, on the other side, causes restrictions in use of metal alloys for austenitic steel, alloys of cobalt matrix and even titanium alloys. However, elements harmful to human body structure such as chromium, nickel and vanadium could not have been eliminated so far. An attempt to reduce detrimental effects of above elements on the living organism are surface modifications of materials predicted for implants through the deposition of protective layers. The C/HAp composite coating was prerared by deposition of carbon layer directly on surgical steel with RF PACVD method and manufacturing of hydroxyapatite layer by sol-gel method. It was proved that carbon film significantly increases adhesion of the composite C/HAp coating. It is due to the diffusive character of bonding between carbon layer and metallic substrate not only by adhesion as in the case with hydroxyapatite deposited directly on metal base. Adhesion of both synthesized coatings was determined using nanoindentation technique. X-Ray diffraction was used for phase composition evaluation. Atomic Force Microscope revealed topography of raw, carbon and C/HAp surfaces. Elemental composition of carbon and composite layers was investigated by scanning electron microscope equipped with x-ray energy dispersive spectroscopy detector.
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Kansara, Saurabh, Shivani Patel, Yong X. Gan, Gabriela Jaimes et Jeremy B. Gan. « Dye Adsorption and Electrical Property of Oxide-Loaded Carbon Fiber Made by Electrospinning and Hydrothermal Treatment ». Fibers 7, no 8 (18 août 2019) : 74. http://dx.doi.org/10.3390/fib7080074.

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Our current study deals with the dye adsorption and electrical property of a partially carbonized composite fiber containing transition metal oxides including, iron oxide, nickel oxide, and titanium oxide. The fiber was made by electrospinning, carbonization, and hydrothermal treatment. During the electrospinning, titanium oxide particles were dispersed in polyacrylonitrile (PAN) polymer-dimethylformamide (DMF) solution. Nickel chloride and iron nitrate were added into the solution to generate nickel oxide and iron oxide in the subsequent heat treatment processes. The polymer fiber was oxidized first at an elevated temperature of 250 °C to stabilize the structure of PAN. Then, we performed higher temperature heat treatment at 500 °C in a furnace with hydrogen gas protection to partially carbonize the polymer fiber. After that, the oxide-containing fiber was coated with activated carbon in a diluted sugar solution via hydrothermal carbonization at 200 °C for 8 h. The pressure reached 1.45 MPa in the reaction chamber. The obtained product was tested in view of the dye, Rhodamine B, adsorption using a Vis-UV spectrometer. Electrical property characterization was performed using an electrochemical work station. It was found that the hydrothermally treated oxide-containing fiber demonstrated obvious dye adsorption behavior. The visible light absorption intensity of the Rhodamine B dye decreased with the increase in the soaking time of the fiber in the dye solution. The impedance of the fiber was increased due to the hydrothermal carbonization treatment. We also found that charge build-up was faster at the surface of the specimen without the hydrothermally treated carbon layer. Electricity generation under visible light excitation is more intensive at the hydrothermally treated fiber than at the one without the hydrothermal treatment. This result is consistent with that obtained from the dye adsorption/decomposition test because the charge generation is more efficient at the surface of the hydrothermally treated fiber, which allows the dye to be decomposed faster by the treated fibers with activated carbon.
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Wu, Yishan, Jun Li, Jianchun Ye, Yujie Song, Xiaohong Chen, Sumei Huang, Zhuo Sun et Wei Ou-Yang. « Outstanding field emission properties of titanium dioxide /carbon nanotube composite cathodes on 3D nickel foam ». Journal of Alloys and Compounds 726 (décembre 2017) : 675–79. http://dx.doi.org/10.1016/j.jallcom.2017.08.026.

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18

Zhu, C., B. Zhang et S. Zheng. « Laser cladding nickel‐titanium carbide composite coating on a 45 carbon steel : Preparation, microstructure and wear behavior ». Materialwissenschaft und Werkstofftechnik 51, no 2 (février 2020) : 247–56. http://dx.doi.org/10.1002/mawe.201900037.

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19

Burkes, Douglas E., Guglielmo Gottoli, John J. Moore, Hu Chun Yi et Reed A. Ayers. « Combustion Synthesis of NiTi – TiC Composites with Controlled Porosity for Biomedical Applications ». MRS Proceedings 800 (2003). http://dx.doi.org/10.1557/proc-800-aa4.5.

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ABSTRACTCombustion synthesis, or Self-propagating High- temperature Synthesis (SHS), is currently being used by the Center for Commercial Applications of Combustion in Space (CCACS) at the Colorado School of Mines to produce advanced porous materials for several important applications. These materials include ceramic, inter- metallic, and metal- matrix composites that can be used for orthopedic implants, heat exchanger and damping systems and micro-and macro-filter applications. Functionally graded materials, both in porosity and composition, can be produced using a range of combustion synthesis reactions systems. There are multiple factors that contribute to the final SHS product, e.g. reactant stoichiometry, initial relative density and pre-heat. The synthesis of nickel-titanium (NiTi) intermetallic compounds and composites is of considerable interest due to the ability to create a porous, shape memory and super-elastic alloy with high corrosion resistance. The synthesis effects of adding a carbon reactant so as to modify the reaction products and reaction exothermicity have been studied through the use of two different reaction stoichiometries involving elemental nickel, titanium and carbon. This paper outlines the synthesis of NiTi intermetallic composites based on the following SHS chemical reaction:The effect of the carbon reactant and the initial sample green density on the apparent porosity, bulk density, pore size and pore distribution of the final materials has been studied and is presented within this paper. A NiTi- TiC intermetallic ceramic composite has been synthesized that is functionally graded in both composition and porosity: the latter grading being due to buoyancy and gas evolution effects. Proposed kinetic mechanisms that drive this synthesis process and control the graded structure are discussed in detail.
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Sadananda, K., et C. R. Feng. « A Review of Creep of Silicides and Composites ». MRS Proceedings 322 (1993). http://dx.doi.org/10.1557/proc-322-157.

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AbstractA review of creep behavior of molybdenum disilicides and their composites is presented. Creep rates of these silicides are compared with those of other high temperature materials such as superalloys, ceramic-ceramic composites, intermetallics including aluminides (nickel and titanium), berylides (vanadium and niobium), and refractory metals(molybdenum and tungsten). Creep rates of silicides are shown to be very sensitive to grain size even in the power-law creep regime with grain size exponent of the order of five and above. In addition, the results show that with increase in volume fraction of reinforcements there is a decrease in creep rates for volume percentages less than 25%. To achieve significant improvement in creep strength volume percentages of reinforcements greater than 25% are required. This weakening effect at low volume percentages is related to accompanying decrease in grain size with the addition of reinforcements. Addition of carbon to MoSi2 eliminated the silica present at grain boundaries and converted it to SiC. The SiC thus formed, inhibited grain growth during hot pressing. Thus although addition of carbon enhanced creep resistance, its effect is masked by the accompanying decrease in grain size. Thus, grain size plays a dominant role in the creep of molydisilicide composites. It is shown that among all the materials molybdenum disilicides possess very high creep resistance comparable to ceramic-ceramic composites.
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Gauvin-Verville, Antoine, Patrick K. Dubois, Benoit Picard, Alexandre Landry-Blais, Jean-Sébastien Plante et Mathieu Picard. « Proof-Of-Concept of a Thermal Barrier Coated Titanium Cooling Layer for an Inside-Out Ceramic Turbine ». Journal of Engineering for Gas Turbines and Power, 5 août 2021. http://dx.doi.org/10.1115/1.4052021.

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Abstract Increasing turbine inlet temperature (TIT) of recuperated gas turbines would lead to simultaneously high efficiency and power density, making them prime candidates for low-emission aeronautics applications, such as hybrid-electric aircraft. The Inside-out Ceramic Turbine (ICT) architecture achieves high TIT by using compression-loaded monolithic ceramics. To resist inertial forces due to blade tip speed exceeding 450 m/s, the shroud of the ICT is made of carbon-polymer composite, wound around a metallic cooling ring. This paper demonstrates that it is beneficial to use a titanium alloy cooling ring with a thermal barrier coating (TBC), rather than nickel superalloys, for the interstitial cooling ring protecting the carbon-polymer from the hot combustion gases. A numerical Design of Experiments (DOE) analysis shows the design trade-offs between the minimum safety factor and the required cooling power for multiple geometries. An optimized high-pressure first turbine stage of a 500 kW microturbine concept using ceramic blades and a titanium cooling ring in an ICT configuration is presented. Its structural performance (minimum safety factor of 1.4) as well as its cooling losses (2% of turbine stage power) are evaluated. Finally, a 20 kW-scale prototype is tested at 300 m/s and a TIT of 1375 K during 4hrs to demonstrate the viability of the concept. Experiments show that the polymer composite was kept below its maximum safe operating temperature and components show no early signs of degradation.
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