Relevant bibliographies by topics / CVD coatings

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'CVD coatings'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "CVD coatings"

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Moulin, D., O. Raymond, P. Chevrier, Paul Lipiński, and Thierry Barre. "CVD Diamond Coatings for Machining." Materials Science Forum 526 (October 2006): 55–60. http://dx.doi.org/10.4028/www.scientific.net/msf.526.55.

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Machining of modern materials requires high performance tools. More than 60% of metal cutting tools used are coated to limit abrasive wear. As the harder material known to man, diamond and consequently Chemical Vapour Deposited (CVD) diamond coatings allow to increase performances of tungsten carbide tools, i.e. tool life, machined surface quality, and to decrease costs. However, CVD diamond coated tools quality is very dependent on the surface preparation as much as the fabrication process parameters. This paper aims to discuss the influence of pretreatments before deposition, and thermal stresses induced by the cooling operation. Diamond deposition process is described emphasizing the role of every step and its function. Some numerical simulations of the residual stresses at the interface are presented, enlightening that tool geometry is an important factor while using a coating, and that tools must be designed for the diamond coating.
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Haubner, R., E. Rauchenwald, M. Lessiak, R. Pitonak, and R. Weissenbacher. "Novel High-Performance CVD Coatings for Machining Applications." Powder Metallurgy Progress 18, no. 2 (November 1, 2018): 128–38. http://dx.doi.org/10.1515/pmp-2018-0015.

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Abstract Investigations of hard and wear resistant materials have a long tradition to increase the performance and profitability of machining applications. The evolution started with WC-Co hardmetal alloys, which were produced by PM technology, followed by CVD coatings on hardmetal tools. The first CVD coatings applied were TiC, TiN and Al2O3. The properties of these coatings could be optimized by varying the crystal size, crystal orientation but also combination of the materials in multilayer systems. Nowadays, about 85% of all hardmetal tools are coated.During the last years, driven by PVD coatings showing good performance (e.g. TiAlN), the search for new CVD coatings was intensified. Medium temperature (MT) CVD processes for TiCN allowed the deposition of TiCN crystals with different composition side by side. Due to this microstructure the adhesion between single layers in new multilayer coatings like TiN/MT-TiCN/Al2O3/TiN could be increased. Novel (Ti,Al)N coatings were developed, showing a nanolamellae microstructure consisting of self-assembled (Ti,Al)N with different composition. For the future there is still plenty to investigate. The already existing coatings and coating systems have to be optimized for the various machining applications. To find new types of CVD coatings, we look for chemical reactions practicable for its use in CVD equipment.
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Li, Xiaodong, and Bharat Bhushan. "Micro/nanomechanical and tribological characterization of ultrathin amorphous carbon coatings." Journal of Materials Research 14, no. 6 (June 1999): 2328–37. http://dx.doi.org/10.1557/jmr.1999.0309.

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Micro/nanomechanical and tribological characterization of ultrathin amorphous carbon coatings, deposited by filtered cathodic arc (FCA), direct ion beam (IB), electron cyclotron resonance plasma chemical vapor deposition (ECR-CVD), and sputter (SP) deposition processes on Si substrate have been conducted using a nanoindenter with a nanoscratch attachment and an accelerated ball-on-flat tribometer. Coating thicknesses of 20, 10, 5 nm and, for the first time, 3.5 nm coatings have been investigated. It was found the FCA coating exhibits the highest hardness and elastic modulus, followed by the ECR-CVD, IB, and SP coatings. In general, the thicker coatings exhibited better scratch/wear performance than the thinner coatings due to their better load-carrying capacity as compared to the thinner coatings. At 20 nm, the FCA and ECR-CVD coatings show the best scratch and wear resistance, while the IB and ECR-CVD coatings show the best scratch and wear resistance at 10 nm. Five nanometer thick coatings show reasonable scratch and wear resistance, while 3.5 nm thick coatings show extremely low load-carrying capacity and poor scratch and wear resistance. It appears that the 3.5 nm coatings studied are unfeasible for scratch and wear resistance applications as of now.
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Kukla, Dominik, Mateusz Kopec, Zbigniew L. Kowalewski, Denis J. Politis, Stanisław Jóźwiak, and Cezary Senderowski. "Thermal Barrier Stability and Wear Behavior of CVD Deposited Aluminide Coatings for MAR 247 Nickel Superalloy." Materials 13, no. 17 (September 1, 2020): 3863. http://dx.doi.org/10.3390/ma13173863.

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In this paper, aluminide coatings of various thicknesses and microstructural uniformity obtained using chemical vapor deposition (CVD) were studied in detail. The optimized CVD process parameters of 1040 °C for 12 h in a protective hydrogen atmosphere enabled the production of high density and porosity-free aluminide coatings. These coatings were characterized by beneficial mechanical features including thermal stability, wear resistance and good adhesion strength to MAR 247 nickel superalloy substrate. The microstructure of the coating was characterized through scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) analysis. Mechanical properties and wear resistance of aluminide coatings were examined using microhardness, scratch test and standardized wear tests, respectively. Intermetallic phases from the Ni-Al system at specific thicknesses (20–30 µm), and the chemical and phase composition were successfully evaluated at optimized CVD process parameters. The optimization of the CVD process was verified to offer high performance coating properties including improved heat, adhesion and abrasion resistance.
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Romanowska, Jolanta, Maryana Zagula-Yavorska, Marek Góral, and Jan Sieniawski. "Zirconium Modified Aluminide Coatings Obtained by the CVD Method." Solid State Phenomena 227 (January 2015): 174–77. http://dx.doi.org/10.4028/www.scientific.net/ssp.227.174.

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The paper presents the comparison of the structures of the zirconium modified aluminide coatings deposited on pure nickel by the CVD and method for different conditions, that is the gas flow and the time of deposition. The time of the aluminizing processes varied from 1.5 to 10 hours and the gas (HCl) flow varied from 0.4 to 1.4 l/min. Aluminum was deposited from the AlCl3 and zirconium from the ZrCl3 gas phases at 1040 oC. The obtained coatings were examined using an optical microscope (microstructure and coating thickness) a scanning electron microscope (chemical composition on the cross-section of the modified aluminide coating) and an XRD phase analyzer. Microstructures and phase compositions of coatings obtained at different process parameters do not differ significantly. In all cases, it is a triple zone structure. Chemical compositions of zones correspond to β-NiAl, γ’-Ni3Al and γ-Ni (Al) phases. The elongation of the time of zirconium-aluminizing process from 1.5 to 10 hours leads to the increase of the coating thickness from 30 to about 60 μm. The EDS analysis and concentration profiles of the cross-section of the coating showed the nickel outward diffusion from the substrate and the aluminum inward diffusion from the surface to the nickel substrate. In coatings deposited at a slow gas flow porosity was observed on the border between β-NiAl and γ’-Ni3Al layers. In coatings deposited at fast gas flow, zirconium does not form any inclusions but dissolves in the matrix. The Kirkendall porosity was not observed.
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Godse, R. V., and A. T. Santhanam. "Composite CVD + PVD coatings." Materials Science and Engineering: A 209, no. 1-2 (May 1996): 384–88. http://dx.doi.org/10.1016/0921-5093(95)10138-1.

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Alshmri, F. "Metallic Coatings: Al-Zn Alloys." Advanced Materials Research 915-916 (April 2014): 608–11. http://dx.doi.org/10.4028/www.scientific.net/amr.915-916.608.

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Steel sheet has one major drawback, it is attacked by moisture at low temperatures and oxygen at high temperatures. Fortunately, coatings can provide protection to steel sheet from corrosion. Aluminum and aluminum zinc coatings can be applied by different methods. These are chemical vapor deposition coating (CVD), slurry coating, vacuum coating, spray coating, cladding, electroplating, electrophoresis, diffusion coatings, cementation, calorizing and hot dipping. This paper aims at providing a survey of these processes.
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Yavorska, M., Jan Sieniawski, Ryszard Filip, and Tadeusz Gancarczyk. "Microstructure Investigation of Aluminide Coatings after Platinum Modification Deposited by CVD Method on Inconel 713 LC Ni-Base Superalloy." Advanced Materials Research 409 (November 2011): 883–88. http://dx.doi.org/10.4028/www.scientific.net/amr.409.883.

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In the present study, microstructure investigation of aluminide coatings after platinum modification deposited by CVD method on Inconel 713 LC Ni-base superalloys were performed. The platinum coatings 3 and 7 m thick were deposited by electroplating process. The diffusion treatment of platinum electroplating coatings at the temperature 1050 °C was carried out for 2h. The low-activity CVD aluminizing of heat treated coatings at the temperature 1050 °C was conducted for 8 h. On the grounds of the obtained results it was found that microstructure of diffusion treated platinum electroplating coatings 3 m and 7 m thick consisted of two phases: γ-Ni and (Al0.25Pt0.75)Ni3. The low activity CVD aluminizing of diffusion treated platinum electroplating coatings 3 and 7 m thick enables the diffusion coating obtaining. The main constituent of aluminide coatings was (Ni,Pt)Al phase.
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Wu, Liying, Lianchang Qiu, Yong Du, Fangfang Zeng, Qiang Lu, Zhuopeng Tan, Lei Yin, Liyong Chen, and Jifei Zhu. "Structure and Mechanical Properties of PVD and CVD TiAlSiN Coatings Deposited on Cemented Carbide." Crystals 11, no. 6 (May 25, 2021): 598. http://dx.doi.org/10.3390/cryst11060598.

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This work reports the results of our investigation of the structure and mechanical properties of physical vapor deposition (PVD) and chemical vapor deposition (CVD) TiAlSiN coatings deposited on cemented carbide substrates. For the first time, a novel nanocomposite of Ti0.13Al0.85Si0.02N coating deposited from TiCl4-AlCl3-SiCl4-NH3-H2 gas precursors was prepared by low pressure chemical vapor deposition (LPCVD) at 780 °C and a pressure of 60 mbar, while PVD Ti0.31Al0.60Si0.09N coating was prepared using the arc ion plating method. The investigation results including morphology, microstructure, chemical composition, phase component, and hardness were carried out by scanning electron microscopy (SEM) equipped with energy dispersive spectrometer (EDS), transmission electron microscopy (TEM), X-ray diffraction (XRD), and nano-indentator. TEM results revealed that both PVD and CVD TiAlSiN coatings consisted of nanocrystalline embedded in SiNx amorphous. The nanohardness of CVD Ti0.13Al0.85Si0.02N coating obtained in this work was 31.7 ± 1.4 GPa, which was 35% higher than that of the PVD Ti0.31Al0.60Si0.09N coating.
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Goto, Takashi. "Laser CVD Process for High Speed Deposition of YSZ Films." Materials Science Forum 475-479 (January 2005): 1213–18. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.1213.

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Thick oxide coatings have wide ranged applications such as oxidation protection, abrasives and thermal barrier coating (TBC). Yttria stabilized zirconia (YSZ) has been used for TBC in gas turbines. Generally, atmospheric plasma spray (APS) and electron-beam physical vapor deposition (EB-PVD) have been utilized in practical applications. Although chemical vapor deposition (CVD) provides high quality coatings, the deposition rate of CVD could have been too small for TBCs. We have recently developed a new laser CVD process achieving an extremely high deposition rate up to 660 ım/h for YSZ coatings on Al2O3 substrates and Ni-based super alloy substrates using Zr(dpm)4 and Y(dpm)3 precursors. An Nd:YAG laser with a high power of 250 W was introduced in a CVD chamber as a defocused beam in a diameter of 20mm covering a whole substrate surface. The YSZ coatings had a well-grown columnar structure with significant (200) orientation. Other oxides such as Y2O3, Al2O3 and TiO2 films were also prepared by laser CVD at high deposition rates around 1 mm/h.
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Dissertations / Theses on the topic "CVD coatings"

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Wheeler, David William. "Solid particle erosion of CVD diamond coatings." Thesis, University of Southampton, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342748.

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Salgueiredo, Ermelinda da Conceição Portela. "Multilayered micro/nanocrystalline CVD diamond coatings for biotribology." Doctoral thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/13465.

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Doutoramento em Ciência e Engenharia de Materiais
In the present work multilayered micro/nanocrystalline (MCD/NCD) diamond coatings were developed by Hot Filament Chemical Vapour Deposition (HFCVD). The aim was to minimize the surface roughness with a top NCD layer, to maximize adhesion onto the Si3N4 ceramic substrates with a starting MCD coating and to improve the mechanical resistance by the presence of MCD/NCD interfaces in these composite coatings. This set of features assures high wear resistance and low friction coefficients which, combined to diamond biocompatibility, set this material as ideal for biotribological applications. The deposition parameters of MCD were optimized using the Taguchi method, and two varieties of NCD were used: NCD-1, grown in a methane rich gas phase, and NCD-2 where a third gas, Argon, was added to the gas mixture. The best combination of surface pre-treatments in the Si3N4 substrates is obtained by polishing the substrates with a 15 μm diamond slurry, further dry etching with CF4 plasma for 10 minutes and final ultrasonic seeding in a diamond powder suspension in ethanol for 1 hour. The interfaces of the multilayered CVD diamond films were characterized with high detail using HRTEM, STEM-EDX and EELS. The results show that at the transition from MCD to NCD a thin precursor graphitic film is formed. On the contrary, the transition of the NCD to MCD grade is free of carbon structures other than diamond, as a result of the richer atomic hydrogen content and of the higher substrate temperature for MCD deposition. At those transitions, WC nanoparticles were found due to contamination from the filament, being also present at the first interface of the MCD layer with the silicon nitride substrate. In order to study the adhesion and mechanical resistance of the diamond coatings, indentation and particle jet blasting tests were conducted, as well as tribological experiments with homologous pairs. Indentation tests proved the superior behaviour of the multilayered coatings that attained a load of 800 N without delamination, when compared to the mono and bilayered ones. The multilayered diamond coatings also reveal the best solid particle erosion resistance, due to the MCD/NCD interfaces that act as crack deflectors. These results were confirmed by an analytical model on the stress field distribution based on the von Mises criterion. Regarding the tribological testing under dry sliding, multilayered coatings also exhibit the highest critical load values (200N for Multilayers with NCD-2). Low friction coefficient values in the range μ=0.02- 0.09 and wear coefficient values in the order of ~10-7 mm3 N-1 m-1 were obtained for the ball and flat specimens indicating a mild wear regime. Under lubrication with physiological fluids (HBSS e FBS), lower wear coefficient values ~10-9-10-8 mm3 N-1 m-1) were achieved, governed by the initial surface roughness and the effective contact pressure.
No presente trabalho desenvolveram-se revestimentos de diamante micro/nanocristalino (MCD/NCD) em multicamadas obtidos por deposição química em fase vapor (CVD) assistida por filamento quente. Pretendeu-se minimizar a rugosidade através de um camada superficial de NCD, maximizar a adesão com um filme inicial de MCD sobre substratos cerâmicos de nitreto de silício (Si3N4) e incrementar a resistência mecânica pela presença de interfaces MCD/NCD nestes revestimentos compósitos. Este conjunto de características garante elevada resistência ao desgaste e baixo coeficiente de atrito, o que somado à biocompatibilidade do diamante, configuram este material como ideal para aplicações em biotribologia. Os parâmetros de deposição do MCD foram otimizados usando o método de Taguchi e utilizaram-se duas variedades de NCD: NCD-1 crescido numa atmosfera com sobressaturação de metano e NCD-2 crescido na presença de árgon. A melhor combinação de pré-tratamentos nos substratos de Si3N4 consiste num polimento com suspensão de diamante (15 μm), seguido de ataque por plasma de CF4 durante 10 minutos e riscagem em suspensão de pó de diamante em etanol durante 1 hora. As interfaces das multicamadas de diamante foram caracterizadas em detalhe por HRTEM, STEM-EDX e EELS. Os resultados mostram que na transição de diamante MCD para NCD ocorre a formação de um filme fino de carbono amorfo, inexistente na transição de NCD para MCD, como resultado da maior percentagem de hidrogénio atómico na mistura de gases e do incremento da temperatura do substrato para a deposição de MCD. Uma característica comum nas interfaces nos dois tipos de NCD é a presença de partículas esféricas de carboneto de tungsténio, devido à contaminação pelos filamentos, estando também presentes na interface entre a camada de MCD e o substrato de nitreto de silício. A adesão e resistência mecânica dos filmes de diamante foram avaliadas por ensaios de indentação, erosão com partículas de carboneto de silício e ensaios tribológicos em movimento recíproco, com pares próprios. Por indentação verificou-se que as multicamadas suportam uma carga de 800N, sem delaminação, valor superior ao atingido pelas mono- e bicamadas. Nos ensaios de erosão, as multicamadas apresentaram igualmente melhor comportamento, devido à ação das interfaces MCD/NCD como defletoras das fissuras, sendo estes resultados confirmados por uma análise de distribuição de tensões de von Mises. As multicamadas apresentam também as cargas críticas de delaminação máximas nos ensaios tribológicos a seco (200 N para multicamadas com NCD-2). Os valores do coeficiente de atrito variam na gama μ=0.02-0.09, para coeficientes de desgaste ~10-7 mm3 N-1 m-1 para a esfera e placa, indicando um regime de desgaste moderado. Sob lubrificação de líquidos fisiológicos (HBSS e FBS) descem para ~10-9-10-8 mm3 N-1 m-1, valores determinados pela rugosidade de partida e pelo regime de pressão de contato efetiva.
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Bojestig, Eric. "Adhesion of CVD coatings on new cemeted carbides." Thesis, Uppsala universitet, Tillämpad materialvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-298648.

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Steel turning inserts cemented carbides have a binder phase consisting of cobalt (Co). However, in recent years a study from the United States National Toxicity Program (NTP) found that cobalt powder is carcinogenic upon inhalation. The European Union's REACH have therefore also classified cobalt powder as carcinogenic upon inhalation. The worldwide search to find a replacement has therefore lately intensified. It is important that the alternative binder phase has no negative effects on the properties of the insert. In this thesis the adhesion between a multilayer ceramic chemical vapor deposition (CVD) coating and a cemented carbide with the alternative binder phases consisting of iron (Fe), nickel (Ni) and cobalt (Co) has been studied. First of all, the fracture surfaces showed that the CVD coating was able to grow on all cemented carbides, regardless of which binder phase. To evaluate the adhesion, scratch tests were performed on all samples. The results from the scratch tests were not as expected. No chipping of the coating down to the cemented carbide occurred on any of the samples and the samples with the hardest cemented carbide did not get the highest critical load, which it should according to the literature if all other parameters were the same. Instead the sample with the binder phase consisting of 73 wt% iron and 27 wt% nickel had the highest critical load. This is thought to be due to that during the scratch test the binder phase in this cemented carbide would most likely transform into deformation martensite.
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Bloyce, David Michael. "Microstructure - property relations in CVD deposited tin dioxide coatings on float glass." Thesis, University of Sheffield, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267180.

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Shabani, Mohammadmehdi. "Tribosystems based on multilayered micro/nanocrystalline CVD diamond coatings." Doctoral thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/16855.

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Doutoramento em Ciência e Engenharia de Materiais
A combinação das características do diamante microcristalino (MCD) e nanocristalino (NCD), tais como elevada adesão do MCD e a baixa rugosidade superficial e baixo coeficiente de atrito do NCD, é ideal para aplicações tribológicas exigentes. Deste modo, o presente trabalho centrou–se no desenvolvimento de revestimentos em multicamada MCD/NCD. Filmes com dez camadas foram depositados em amostras de cerâmicos de Si3N4 pela técnica de deposição química em fase vapor assistida por filamento quente (HFCVD). A microestrutura, qualidade do diamante e adesão foram investigadas usando técnicas como SEM, AFM, espectroscopia Raman, DRX, indentação Brale e perfilometria ótica 3D. Diversas geometrias para aplicações distintas foram revestidas: discos e esferas para testes tribológicos à escala laboratorial, e para testes em serviço, anéis de empanques mecânicos e pastilhas de corte para torneamento. Nos ensaios tribológicos esfera–sobre–plano em movimento recíproco, sob 10–90% de humidade relativa (RH), os valores médios dos coeficientes de atrito máximo e em estado estacionário são de 0,32 e 0,09, respetivamente. Em relação aos coeficientes de desgaste, observou–se um valor mínimo de cerca de 5,2×10–8 mm3N–1m–1 para valores intermédios de 20–25% de RH. A humidade relativa tem um forte efeito sobre o valor da carga crítica que triplica a partir de 40 N a 10% RH para 120 N a 90% de RH. No intervalo de temperaturas 50–100 ° C, as cargas críticas são semelhantes às obtidas em condições de baixa RH (~10–25%). A vida útil das ferramentas com revestimento de dez camadas alternadas MCD/NCD e 24 μm de espessura total no torneamento de um compósito de matriz metálica Al– 15 vol% Al2O3 (Al–MMC) é melhor do que a maioria das ferramentas de diamante CVD encontradas na literatura, e semelhante à maioria das ferramentas de diamante policristalino (PCD). A formação de cratera ocorre por desgaste sucessivo das várias camadas, atrasando a delaminação total do revestimento de diamante do substrato, ao contrário do que acontece com os revestimentos monocamada. Os anéis de empanque testados com biodiesel apresentaram coeficientes de desgaste (4,1x10–10 mm3N–1m–1) duas ordens de grandeza menores do que em ensaios esfera–sobre–plano em movimento recíproco (k = 5,0x10–8 mm3N–1m–1), mas não foi possível obter vedação completa devido a sobreaquecimento do fluido. Esta condição foi obtida com água sob pressão, para condições P.V na gama 0,72–5,3 MPa.ms–1. Um coeficiente de atrito em estado estacionário de ~ 0,04 e um valor de coeficiente de desgaste de 6,0x10–10 mm3N–1m–1, característico de um regime desgaste ultra–suave, revelam o alto desempenho deste tribossistema.
The combination of the characteristics of microcrystalline diamond (MCD) and nanocrystalline diamond (NCD) varieties, such as high adhesion of MCD and low surface roughness and low friction coefficient of NCD, is ideal for highly–demanding tribological applications. The main objective of this study was thus the development of multilayered MCD/NCD coatings for such purpose. Single layer and tenfold multilayer coatings were grown onto Si3N4 ceramic samples by the hot–filament CVD (HFCVD) process and their microstructure, diamond quality and adhesion were investigated using SEM, AFM, Raman spectroscopy, XRD, Brale indentation and 3D optical profilometry. Several geometries for distinct applications were then coated: discs and balls for lab–scale tribological testing, mechanical seal rings and cutting inserts for in–service testing. For the ball–on–flat reciprocating tests in the 10–90% relative humidity (RH) range the average values of the maximum and steady–state friction coefficients are 0.32 and 0.09, respectively. Regarding the wear coefficient of the discs, a valley–shaped evolution is observed within the same RH range, with a minimum of about 5.2×10–8 mm3N–1m–1. Humidity has a strong effect on the value of the critical load that triples from 40 N at 10% RH to 120 N at 90% RH. In the 50–100 °C range the critical loads are similar to those attained under dry conditions ( 25% RH). The tool life of a 24 μm thick tenfold multilayered MCD/NCD coated insert in the turning of an Al–15 vol.% Al2O3 metal matrix composite (Al–MMC) is better than most reported CVD diamond systems, behaving as well as most PCD tools. Crater wear occurs by successive wear of the layers, delaying total delamination of the diamond coating from the substrate, unlike what would happen with monolayer coatings. Under biodiesel lubrication seal rings present wear coefficients (4.1x10–10 mm3N–1m–1) two orders of magnitude lower than the reciprocating sliding ball–on–flat experiments (k = 5.0x10–8 mm3N–1m–1), but no full sealing was possible due to overheating of the fluid. This condition was only attained with pressurized water, for P.V conditions in the range 0.72–5.3 MPa.ms–1. A steady state friction coefficient value of ~0.04 and a wear coefficient value of 6.0x10–10 mm3N–1m–1, characteristic of an ultra–mild wear regime, reveal the high performance of this tribosystem.
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Ryan, David J. "High temperature degradation of combustion CVD coated thermal barrier coatings." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/18909.

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Papazoglou, Despina. "CVD of ceramic coatings in a hot wall and fluidised bed reactor." Title page, contents and abstract only, 1994. http://web4.library.adelaide.edu.au/theses/09AS/09asp213.pdf.

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Fallqvist, Mikael. "Microstructural, Mechanical and Tribological Characterisation of CVD and PVD Coatings for Metal Cutting Applications." Doctoral thesis, Uppsala universitet, Tillämpad materialvetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-172364.

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The present thesis focuses on characterisation of microstructure and the resulting mechanical and tribological properties of CVD and PVD coatings used in metal cutting applications. These thin and hard coatings are designed to improve the tribological performance of cutting tools which in metal cutting operations may result in improved cutting performance, lower energy consumption, lower production costs and lower impact on the environment.  In order to increase the understanding of the tribological behaviour of the coating systems a number of friction and wear tests have been performed and evaluated by post-test microscopy and surface analysis. Much of the work has focused on coating cohesive and adhesive strength, surface fatigue resistance, abrasive wear resistance and friction and wear behaviour under sliding contact and metal cutting conditions. The results show that the CVD deposition of accurate crystallographic phases, e.g. α-Al2O3 rather than κ-Al2O3, textures and multilayer structures can increase the wear resistance of Al2O3. However, the characteristics of the interfaces, e.g. topography as well as interfacial porosity, have a strong impact on coating adhesion and consequently on the resulting properties.  Through the deposition of well designed bonding and template layer structures the above problems may be eliminated. Also, the presence of macro-particles in PVD coatings may have a significant impact on the interfacial adhesive strength, increasing the tendency to coating spalling and lowering the surface fatigue resistance, as well as increasing the friction in sliding contacts. Finally, the CVD-Al2O3 coating topography influences the contact conditions in sliding as well as in metal cutting. In summary, the work illuminates the importance of understanding the relationships between deposition process parameters, composition and microstructure, resulting properties and tribological performance of CVD and PVD coatings and how this knowledge can be used to develop the coating materials of tomorrow.
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Hendrick, Michelle Renee. "The effects of combustion CVD-applied alumina coatings on the high temperature oxidation of a Ni-Cr alloy." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/19635.

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Longpradit, Panchan. "Effect of substrate pretreatment on CVD diamond coated cemented tungsten carbide tools for wood cutting application." Thesis, University of Nottingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326525.

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Books on the topic "CVD coatings"

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Prange, Robert. Abscheidung metastabiler Ti₁₋xAlxN-Schichten nach dem plasmagestützten CVD-Verfahren. Düsseldorf: VDI Verlag, 2000.

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Miyoshi, Kazuhisa. CVD diamond, DLC, and c-BN coatings for solid film lubrication. [Cleveland, Ohio]: National Aeronautics and Space Administration, Lewis Research Center, 1998.

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Miyoshi, Kazuhisa. CVD diamond, DLC, and c-BN coatings for solid film lubrication. [Cleveland, Ohio]: National Aeronautics and Space Administration, Lewis Research Center, 1998.

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Pulker, Hans K. Pulker: Wear & Corrosion Resistant Coatings by CVD & Pvd. Ellis Horwood, 1989.

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1933-, Pulker H. K., and Bergmann E, eds. Wear and corrosion resistant coatings by CVD and PVD. Chichester: E. Horwood, 1989.

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CVD diamond, DLC, and c-BN coatings for solid film lubrication. [Cleveland, Ohio]: National Aeronautics and Space Administration, Lewis Research Center, 1998.

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Tribologicai characteristics and applications of superhand coatings: CVD diamond, DLC, and c-BN. [Cleveland, Ohio]: National Aeronautics and Space Administration, Glenn Research Center, 1999.

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Collingham, Mark. Effect of recycling on axial distribution coating thickness in a low pressure CVD reactor. 1986.

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Book chapters on the topic "CVD coatings"

1

Deng, Xiaopei, Kenneth C. K. Cheng, and Joerg Lahann. "Multifunctional Reactive Polymer Coatings." In CVD Polymers, 199–218. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2015. http://dx.doi.org/10.1002/9783527690275.ch9.

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O'Shaughnessy, W. Shannan. "Commercialization of CVD Polymer Coatings." In CVD Polymers, 415–30. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2015. http://dx.doi.org/10.1002/9783527690275.ch19.

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Matthews, Allan, and Kenneth Holmberg. "PVD and CVD Coatings." In Encyclopedia of Tribology, 2705–11. Boston, MA: Springer US, 2013. http://dx.doi.org/10.1007/978-0-387-92897-5_724.

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Moulin, D., O. Raymond, P. Chevrier, P. Lipinski, and Thierry Barre. "CVD Diamond Coatings for Machining." In Materials Science Forum, 55–60. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-417-0.55.

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Zemskova, S. M., J. A. Haynes, and K. M. Cooley. "Protective CVD Mullite Coatings with Controlled Composition and Microstructure." In Elevated Temperature Coatings, 317–26. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118787694.ch24.

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Wahl, G. "CVD Processes to Enhance Corrosion and Wear Protection." In Protective Coatings and Thin Films, 49–75. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5644-8_6.

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Varlamov, A. G. "CVD-Silicon Carbonitride Coatings: Synthesis and Some Characteristics." In Protective Coatings and Thin Films, 89–98. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5644-8_8.

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Kim, G. Y., J. D. Meyer, L. M. He, W. Y. Lee, and J. A. Haynes. "Synthesis of Hf-Doped CVD β-NiAl Coating by Continuous Doping Procedure." In Elevated Temperature Coatings, 143–57. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118787694.ch11.

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Alexenko, A. E., and B. V. Spitsyn. "Some Properties of CVD-Diamond Semiconducting Structures." In Diamond and Diamond-like Films and Coatings, 789–95. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-5967-8_58.

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Haynes, J. A., M. J. Lance, B. A. Pint, and I. G. Wright. "Characterization of Commercial EB-PVD TBC Systems with CVD (Ni,Pt)Al Bond Coatings." In Elevated Temperature Coatings, 29–44. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118787694.ch3.

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Conference papers on the topic "CVD coatings"

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Varlamov, Alexey G. "Structured CVD-silicon carbonitride coatings." In Microelectronic Manufacturing 1996, edited by Ih-Chin Chen, Nobuo Sasaki, Divyesh N. Patel, and Girish A. Dixit. SPIE, 1996. http://dx.doi.org/10.1117/12.250887.

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Zabeida, Oleg, Richard Vernhes, Thomas Poirié, Sebastien Chiarotto, Karin Scherer, Thomas Schmitt, Viktor Marushka, Jolanta E. Klemberg-Sapieha, and Ludvik Martinu. "Hybrid Organic-Inorganic Optical Films Deposited by Ion Beam Assisted CVD." In Optical Interference Coatings. Washington, D.C.: OSA, 2013. http://dx.doi.org/10.1364/oic.2013.tha.4.

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Mollart, Tim P., Keith L. Lewis, Christopher J. H. Wort, and Charles S. J. Pickles. "Coatings technology for CVD diamond optics." In Aerospace/Defense Sensing, Simulation, and Controls, edited by Randal W. Tustison. SPIE, 2001. http://dx.doi.org/10.1117/12.439176.

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Warnes, Bruce Michael. "Improved Pt Aluminide Coatings Using CVD and Novel Platinum Electroplating." In ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/98-gt-391.

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Chemical vapor deposition (CVD) is an old coating technology, but it was not successfully utilized to aluminize gas turbine hardware until recently (1989). In CVD aluminizing, the use of multiple, independently controlled, low temperature, external, metal halide generators combined with computer control of all process variables gives flexibility and consistent quality that is not possible with any other aluminizing process. It has been shown that harmful coating impurities (such as sulfur and boron etc.) can be transported to a coating from a high temperature aluminum source in the coating chamber during aluminizing. Representative processes include: pack cementation, above the pack, SNECMA, and high activity CVD. In contrast, it has also been demonstrated that CVD low activity aluminizing removes harmful impurities (S, P, B & W etc.) from the coating during deposition. Furthermore, clean, low activity coatings (simple aluminide MDC-210 or platinum modified MDC-150L) have been shown to exhibit superior oxidation resistance compared to similar coatings made by other aluminizing processes. A second significant source of impurities in platinum modified aluminide diffusion coatings is electroplating, that is, plating bath components (S, P, CI, K, Ca etc.) are codeposited with the platinum, and these impurities can have either a beneficial (K&Ca) or a detrimental (S,P&Cl) influence upon the oxidation resistance of the product coating. The results of investigations on the transport of impurities during aluminizing and electroplating, plus the influence of these impurities on oxidation resistance of the product coatings will be presented and discussed.
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Tan, Xiaonan, Jacek Wojcik, Haiqiang Zhang, and Peter Mascher. "SiO^x, SiN^x, SiN^xO^y Deposited by ICP-CVD System With Optimized Uniformity for Optical Coatings." In Optical Interference Coatings. Washington, D.C.: OSA, 2007. http://dx.doi.org/10.1364/oic.2007.mb4.

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Podob, Mark. "Chemical Vapor Deposition (CVD) Coatings for Protection of Jet Engine Components." In ASME 1993 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/93-gt-375.

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CVD coatings are thin films resulting from the chemical reaction between a gaseous phase and the heated surface of a substrate. Among the industries using CVD coating technology are electronics, tooling, fuel cogeneration, and aerospace. The electronics industry uses CVD to deposit semiconductor materials onto different substrates. For the tooling industry, titanium nitride (TiN), titanium carbide (TiC), or aluminum oxide (Al2O3) is deposited onto cutting or metal forming tools. These hardcoatings act as chemical and thermal barriers between the tool and workpiece. In the aerospace industry, CVD is used to deposit aluminide or chromide coatings onto jet engine blades and other hot section components. The coatings improve the corrosion and oxidation resistance of the base metal. CVD is replacing older established methods for protecting these same components. While the use of CVD coatings in the aerospace industry is relatively new, it is gaining increasing acceptance. In addition to producing aluminides and chromides, CVD reactions can form coatings containing silicon, yttrium, hafnium and other rare earth elements. Since the coatings are the result of the chemical reaction between high purity gases and solids, coatings can be free of porosity and inclusions.
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Liburdi, J., P. Lowden, and V. Moravek. "A Low Temperature CVD Process for Aluminum and Aluminide Coatings." In ASME Turbo Expo 2000: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/2000-gt-0330.

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A novel, low temperature Organometallic Chemical Vapour process (LOM), developed by Liburdi Engineering is presented in this paper. The process, which is widely used in the electronics industry to apply thin layers of pure aluminum, has been successfully scaled from a 3″ (75 mm) diameter quartz reactor to a production hot wall metal retort with an internal diameter of 18″ (0.45m) and a height of 60″ (1.5m). The capability for simultaneously coating external and internal surfaces is discussed. The aluminum layer can be used directly for low temperature atmospheric corrosion protection in place of IVADIZING or diffusion heat treated to produce an oxidation resistant aluminide coating for superalloys. Results of cyclic oxidation and salt fog corrosion testing are presented. The potential for alloying with modifying elements such as platinum to further enhance its high temperature oxidation resistance and to use the process in conjunction with thermal barrier coatings are presented. Potential applications ranging from coating of heat exchangers and automotive catalytic converters to the coating of industrial and aero turbine blades with complex cooling passages are presented.
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Paquet, V., H. W. Etzkorn, R. T. Kersten, J. L. Emmet, J. H. Campbell, R. M. Brusasco, and F. Rainer. "Laser Damage Resistant Coatings By Plasma-Impulse-CVD." In 1989 Intl Congress on Optical Science and Engineering, edited by Theo T. Tschudi. SPIE, 1990. http://dx.doi.org/10.1117/12.961353.

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Klug, Werner, Roland Schneider, and Alfons Zoeller. "Plasma-enhanced CVD hard coatings for opthalmic optics." In San Dieg - DL Tentative, edited by Richard I. Seddon. SPIE, 1990. http://dx.doi.org/10.1117/12.22376.

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Taylor, Craig A., and Wilson K. Chiu. "Characterization of carbon CVD coatings near atmospheric deposition pressure." In Photonics Fabrication Europe, edited by Hans G. Limberger and M. John Matthewson. SPIE, 2003. http://dx.doi.org/10.1117/12.468291.

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Reports on the topic "CVD coatings"

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Sarin, V. K., and S. Varadarajan. Development of CVD Mullite Coatings for SiC Fibers. Office of Scientific and Technical Information (OSTI), March 2000. http://dx.doi.org/10.2172/755649.

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Vanier, P. E., R. E. Barletta, J. Svandrlik, and J. Adams. Tests of Hercules/Ultramet CVD coatings in hot hydrogen. Office of Scientific and Technical Information (OSTI), January 1992. http://dx.doi.org/10.2172/7001818.

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Vanier, P. E., R. E. Barletta, J. Svandrlik, and J. Adams. Tests of Hercules/Ultramet CVD coatings in hot hydrogen. Office of Scientific and Technical Information (OSTI), December 1992. http://dx.doi.org/10.2172/10116356.

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Sarin, V., R. Mulpuri, and M. Auger. Corrosion protection of SiC-based ceramics with CVD mullite coatings. Office of Scientific and Technical Information (OSTI), April 1996. http://dx.doi.org/10.2172/256785.

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Adams, J. W., R. E. Barletta, J. Svandrlik, and P. E. Vanier. Performance of CVR coatings for PBR fuels. Office of Scientific and Technical Information (OSTI), December 1993. http://dx.doi.org/10.2172/10115283.

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Hendrick, Michelle. Low-Cost Protective Layer Coatings on Thermal Barrier Coatings via CCVD. Final Report. Office of Scientific and Technical Information (OSTI), September 2003. http://dx.doi.org/10.2172/821712.

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Beitleman, Alfred D. Cape Cod Railroad Bridge Coating Field Test Results. Fort Belvoir, VA: Defense Technical Information Center, November 1999. http://dx.doi.org/10.21236/ada371715.

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Battaglia, Francine. Detailed Reaction Kinetics for CFD Modeling of Nuclear Fuel Pellet Coating for High Temperature Gas-Cooled Reactors. Office of Scientific and Technical Information (OSTI), November 2008. http://dx.doi.org/10.2172/942124.

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Gray, Matthew H. Commercialization of High-Temperature Solar Selective Coating: Cooperative Research and Development Final Report, CRADA Number CRD-08-300. Office of Scientific and Technical Information (OSTI), January 2014. http://dx.doi.org/10.2172/1121487.

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Gray, Matthew. Development of Abrasion-Resistant Coating for Solar Reflective Films. Cooperative Research and Development Final Report, CRADA Number CRD-07-247. Office of Scientific and Technical Information (OSTI), October 2015. http://dx.doi.org/10.2172/1225965.

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