Relevant bibliographies by topics / Diamond-diamond friction study

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Academic literature on the topic 'Diamond-diamond friction study'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2022

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Journal articles on the topic "Diamond-diamond friction study"

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Duan, Long Chen, Shao Lin Xu, Hao Shi, and Jun Ping Li. "Experimental Study on Friction Characteristics of Hot-Pressing Matrix and Granite under Dry Sliding Conditions." Advanced Materials Research 126-128 (August 2010): 981–86. http://dx.doi.org/10.4028/www.scientific.net/amr.126-128.981.

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In order to understand the friction characteristics of hot-pressing bit matrix and granite under dry sliding conditions, the influence law of hardness and diamond concentration to the friction coefficient was analyzed and discussed with the data of friction coefficient and torque under different conditions. Three groups of hot-pressing matrix samples of different hardness and three groups of hot-pressing matrix samples with different diamond concentration were chosen. The friction and wear tests were carried out between hot-pressing matrix samples and granite samples. The results showed that the friction torque and coefficient firstly increased, and then decreased with the increase of hardness in dry friction experiments between granite sample and matrix sample without diamond. Compared with data from matrix sample without diamond, the friction torque and friction coefficient decreased significantly when test was carried between granite sample and impregnated diamond matrix sample. The friction torque and coefficient increased with the increase of diamond concentration.
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Zhang, Ji, Ehsan Osloub, Fatima Siddiqui, Weixiang Zhang, Tarek Ragab, and Cemal Basaran. "Anisotropy of Graphene Nanoflake Diamond Interface Frictional Properties." Materials 12, no. 9 (May 1, 2019): 1425. http://dx.doi.org/10.3390/ma12091425.

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Using molecular dynamics (MD) simulations, the frictional properties of the interface between graphene nanoflake and single crystalline diamond substrate have been investigated. The equilibrium distance between the graphene nanoflake and the diamond substrate has been evaluated at different temperatures. This study considered the effects of temperature and relative sliding angle between graphene and diamond. The equilibrium distance between graphene and the diamond substrate was between 3.34 Å at 0 K and 3.42 Å at 600 K, and it was close to the interlayer distance of graphite which was 3.35 Å. The friction force between graphene nanoflakes and the diamond substrate exhibited periodic stick-slip motion which is similar to the friction force within a graphene–Au interface. The friction coefficient of the graphene–single crystalline diamond interface was between 0.0042 and 0.0244, depending on the sliding direction and the temperature. Generally, the friction coefficient was lowest when a graphene flake was sliding along its armchair direction and the highest when it was sliding along its zigzag direction. The friction coefficient increased by up to 20% when the temperature rose from 300 K to 600 K, hence a contribution from temperature cannot be neglected. The findings in this study validate the super-lubricity between graphene and diamond and will shed light on understanding the mechanical behavior of graphene nanodevices when using single crystalline diamond as the substrate.
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Shi, Shuang Ji, Jia Zhi Lin, Zhu Ji Jin, Xiao Guang Guo, Ping Zhou, and Ren Ke Kang. "Study of Grinding Wheel for Polishing Diamond by Dynamic Friction Polishing." Advanced Materials Research 1017 (September 2014): 304–9. http://dx.doi.org/10.4028/www.scientific.net/amr.1017.304.

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Diamond is widely used in the fields of precise and ultraprecise machining because of its superlative characters. Due to high hardness and great brittleness of diamond, the grinding of diamond needs a kind of high effective and stable polishing method. Dynamic friction polishing (DFP) is deemed to be an innovative method by means of a synergistic reaction of mechanical effect and chemical change. The condition of high pressure and high temperature puts forward a high requirement for mechanical property of the grinding wheel in DFP, other than that, the graphitization of diamond catalyzed by catalytic metal is also a focus of research. In this paper, the transition metals with unpaired d electrons were selected as polishing materials, and powder metallurgy technique was used to prepare alloy grinding wheel for polishing diamond by dynamic friction polishing.
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Pan, Bing Suo, Xiao Hong Fang, and Ming Yuan Niu. "Study on Friction and Wear Properties of Self-Lubricating Impregnated Diamond Bit Cutters." Solid State Phenomena 175 (June 2011): 136–39. http://dx.doi.org/10.4028/www.scientific.net/ssp.175.136.

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To reduce the friction coefficient between impregnated diamond bit and rock, experiments on addition of graphite to the matrix material of bit cutters were conducted. The cutters were made up of diamond contained working layers and binding layers. The friction and wear properties of cutters and binding layers were investigated using a pin-on-disc friction & wear tester with granite as tribopair. The results showed that with addition of graphite, the hardness and friction coefficient of binding layer decreased, but its wear resistance increased; compared to cutters without graphite, those cutters containing graphite had lower wear loss and friction coefficient and their sliding wear process was much steadier, but diamond protrusion was still normal.
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LIN, ZICHAO, FANGHONG SUN, and BIN SHEN. "FRICTION PROPERTIES OF POLISHED CVD DIAMOND FILMS SLIDING AGAINST DIFFERENT METALS." Surface Review and Letters 23, no. 02 (February 29, 2016): 1550096. http://dx.doi.org/10.1142/s0218625x15500961.

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Owing to their excellent mechanical and tribological properties, like the well-known extreme hardness, low coefficient of friction and high chemical inertness, chemical vapor deposition (CVD) diamond films have found applications as a hard coating for drawing dies. The surface roughness of the diamond films is one of the most important attributes to the drawing dies. In this paper, the effects of different surface roughnesses on the friction properties of diamond films have been experimentally studied. Diamond films were fabricated using hot filament CVD. The WC-Co (Co 6[Formula: see text]wt.%) drawing dies were used as substrates. A gas mixture of acetone and hydrogen gas was used as the feedstock gas. The CVD diamond films were polished using mechanical polishing. Polished diamond films with three different surface roughnesses, as well as the unpolished diamond film, were fabricated in order to study the tribological performance between the CVD diamond films and different metals with oil lubrication. The unpolished and polished CVD diamond films are characterized with scanning electron microscope (SEM), atomic force microscope (AFM), surface profilometer, Raman spectrum and X-ray diffraction (XRD). The friction examinations were carried out by using a ball-on-plate type reciprocating friction tester. Low carbide steel, stainless steel, copper and aluminum materials were used as counterpart balls. Based on this study, the results presented the friction coefficients between the polished CVD films and different metals. The friction tests demonstrate that the smooth surface finish of CVD diamond films is beneficial for reducing their friction coefficients. The diamond films exhibit low friction coefficients when slid against the stainless steel balls and low carbide steel ball, lower than that slid against copper ball and aluminum ball, attributed to the higher ductility of copper and aluminum causing larger amount of wear debris adhering to the sliding interface and higher adhesive strength between the contacting surfaces.
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Lei, Xuelin, Yun He, and Fanghong Sun. "Tribological properties of TiN/diamond and TiAlN/diamond bilayer films sliding against carbon steel." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 232, no. 8 (December 29, 2017): 1014–24. http://dx.doi.org/10.1177/1350650117750975.

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In this study, the tribological properties of the monolayer micro-crystalline diamond and nano-crystalline diamond films, TiN/diamond and TiAlN/diamond bilayer films on cemented tungsten carbide substrates are evaluated by dry sliding against the medium carbon steel counterpart balls, in terms of the coefficient of friction, wear rate, worn surfaces, and chemical transitions in the contacting wear zones. The significant coefficient of friction reducing effect of top-layer TiN and TiAlN coating only happens on the nano-crystalline diamond film, where the stable coefficient of friction of TiN/nano-crystalline diamond or TiAlN/nano-crystalline diamond bilayer coating reduces 9% or 53% compared with the nano-crystalline diamond film. The formed ionic metal oxides such as Fe2O3 or Fe3O4 coming from the chemisorbing of the atmospheric molecular water, oxygen in the air and the delamination of steel ball due to the repeated friction interaction is supposed to be responsible for the coefficient decreasing effect. The TiN or TiAlN film on diamond layer exhibits lower positive wear rate compared with the TiN or TiAlN film itself, due to the load support ability improvement resulted from the high hardness of diamond interlayers. Among all the tested hard films, the TiAlN/nano-crystalline diamond bilayer coating exhibits the valid potential to be the optimized tool coating in carbon steel machining in terms of its low coefficient of friction and wear rate, which may come from the self-lubricated transfer tribolayer formation on the TiAlN layer, as well as the enhanced mechanical supporting capacity of the underneath smooth and hard nano-crystalline diamond interlayer.
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Kohzaki, M., K. Higuchi, S. Noda, and K. Uchida. "Tribological characteristics of polycrystalline diamond films produced by chemical vapor deposition." Journal of Materials Research 7, no. 7 (July 1992): 1769–77. http://dx.doi.org/10.1557/jmr.1992.1769.

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Effects of surface roughness and crystallinity of polycrystalline diamond films on their tribological characteristics, as well as the effects of test environment, have been investigated. Friction and wear characteristics of the diamond films deposited on sintered SiC disks have been examined with a ball-on-disk tester in the absence of any lubricant. The friction coefficients of polished diamond films against SiC and Si3N4 balls were below 0.10 at room temperature while those of as-deposited films were around 0.20. The specific wear of counterparts on the polished film was five orders of magnitude smaller than on the as-deposited film. The friction coefficient between the polished diamond film and a AISI 52100 steel ball was about 0.20. Transfer of a small amount of AISI 52100 material to the diamond film was observed along the wear track of the polished diamond surface. Diamond films of high quality were more resistant to wear than the ones of low quality. On the other hand, the friction coefficients were not affected by the crystallinity of the diamond films in the present study. Tribological characteristics of the diamond films deteriorated with increasing sliding speed and ambient temperature. At 600 °C in dry N2, the friction coefficient of diamond films against a SiC ball was about 0.8, which was about ten times higher than that at room temperature in air.
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Shen, Bin, Fang Hong Sun, and Guo Dong Yang. "Study on the Friction Behavior of HFCVD Diamond Films on Silicon Nitride Substrates." Advanced Materials Research 135 (October 2010): 143–48. http://dx.doi.org/10.4028/www.scientific.net/amr.135.143.

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The friction behaviors of CVD diamond films on silicon nitride substrates are investigated comparing with the uncoated silicon nitride samples. Two types of CVD diamond films, namely MCD and NCD films, are deposited on the silicon nitride substrates using HFCVD method, and then SEM, while light interferometer, XRD and Raman spectra are employed to characterize as-deposited diamond films. The friction tests are carried out in a ball-on-plate reciprocating friction tester, with ball-bearing steel, copper, tungsten carbide and tungsten carbide as the counterpart materials. The results show that the diamond film deposited on silicon nitride substrate has significant effect on reducing the friction coefficient and enhancing the wear resistance. The friction coefficients of MCD and NCD films are around ~0.35 in dry sliding against ball-bearing steel and copper, while for sliding with the tungsten carbide and silicon nitride, the friction coefficients of NCD films even decrease as low as ~0.12 and ~0.08 respectively. The special wear rate of the silicon nitride and NCD film can be estimated as 6.2167×10-5 mm3 N-1 m-1 and 4.03×10-7 mm3 N-1 m-1 with the counterface of silicon nitride. Comparatively, no measurable wear occurs on the worn surface of the MCD film.
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Jin, Zhu Ji, Z. W. Yuan, Q. Li, and K. Wang. "Tribological Aspects of Chemical Mechanical Polishing Diamond Surfaces." Advanced Materials Research 325 (August 2011): 464–69. http://dx.doi.org/10.4028/www.scientific.net/amr.325.464.

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Mechanical energy may initiate and accelerate chemical reaction in chemical mechanical polishing (CMP). To study the effect of mechanical energy on the chemical reactions, a special friction measuring system was designed in this paper. The system could measure the local friction to reduce the error caused by resultant force. The effects of rotational speed, polishing pressure and the concentration of oxidant on friction and material removal rate were investigated. The results showed that the system could accurately measure the friction of small area diamond film in CMP process. The frictional system was in a mixed lubrication state since the value of the friction coefficient located in the range of 0.060~0.065.
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Jin, Zhu Ji, Ze Wei Yuan, Ren Ke Kang, and B. X. Dong. "Study on Two Kinds of Grinding Wheels for Dynamic Friction Polishing of CVD Diamond Film." Key Engineering Materials 389-390 (September 2008): 217–22. http://dx.doi.org/10.4028/www.scientific.net/kem.389-390.217.

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This paper investigates two kinds of grinding wheels prepared by the combination of mechanical alloy and hot-press sintering (MA-HPS). Scanning electro microscopy, Optical microscope, Talysurf surface profiler, X-Ray diffraction and Raman spectroscopy were used to characterize two kinds of grinding wheels and identify the removal mechanism. It was found that FeNiCr matrix-TiC (FMT) grinding wheel yielded higher removal rate than TiAl abrasiveless carbophile (TAC) grinding wheel, which conversely owned good polishing quality; diamond was removed by transformation diamond to non-diamond carbons and then removed by mechanically or diffusion to grinding wheel during polishing process with FMT grinding wheel. While TAC grinding wheel polishing CVD diamond film mainly depended on the reaction between diamond carbon and titanium.
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Dissertations / Theses on the topic "Diamond-diamond friction study"

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Samuels, B. "An investigation of the friction of diamond sliding on diamond." Thesis, University of Oxford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379995.

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Cannara, Rachel J. "The atomic-scale origins of friction : a nanotribological study of diamond surfaces /." 2006. http://www.library.wisc.edu/databases/connect/dissertations.html.

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Book chapters on the topic "Diamond-diamond friction study"

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Mao, Tianbao, Hui Wang, and Yuanzhong Hu. "Friction between Diamond-Like Carbon (DLC) Films—a Molecular Dynamics Study." In Advanced Tribology, 554–55. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03653-8_177.

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Conference papers on the topic "Diamond-diamond friction study"

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Ciraci, S., and S. Dag. "First-Principles Study of Superlow Friction Between Hydrogenated Diamond Surfaces." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-64323.

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Attractive interaction between two clean diamond(001) slabs turns repulsive upon the hydrogenation of surfaces. Even under high loading forces, this repulsive interaction prevents the sliding surfaces from being closer to each other. As a result, calculated lateral force variation generated during sliding has small magnitude under high constant loading forces. Superlow friction observed earlier between diamond like carbon coated surfaces can be understood by the steady repulsive interaction between sliding surfaces, as well as strong and stiff carbon-carbon and carbon-hydrogen bonds which do not favor energy dissipation. In ambient conditions, the steady repulsive interaction is, however, destroyed by oxygenation of hydrogenated surface.
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Hamilton, Matthew A., Andrew R. Konicek, David S. Grierson, A. V. Sumant, Orlando Auciello, W. Gregory Sawyer, and Robert W. Carpick. "Environmental Performance Limits of Ultrananocrystalline Diamond Films." In STLE/ASME 2008 International Joint Tribology Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/ijtc2008-71198.

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Recent improvements in growth methodologies have decreased the grain sizes and thicknesses of polycrystalline diamond films to the nanometer range, while also increasing the film uniformity and growth rate and preserving the outstanding mechanical properties of diamond. This is rendering such films more technologically and commercially viable. Ultrananocrystalline diamond (UNCD) are the thinnest (<200 nm) and smoothest (Rq < 10 nm) diamond films available.[1] These films demonstrated self-mated friction coefficients as low as near frictionless carbon (μ < 0.007) in environments with sufficient humidity, and the corresponding wear rates could not be measured using scanning white-light interferometry. However, their response to environmental conditions (e.g. relative humidity, ambient species, velocity, and temperature) had not been systematically explored in the past. This study focused on identifying conditions that contribute to favorable tribological performance. We find low friction performance at humidity levels below 1.5% in both nitrogen and argon environments.
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Schmitt, M., and S. Bistac. "Tribological Behaviour of the Diamond/Steel Couple: Influence of the Temperature." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63140.

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With its excellent mechanical and chemical properties, diamond is expected to find many applications in industrial and engineering fields, and more particularly for the machining process, where the use of diamond coated tools leads to an improvement of their efficiency as well as an increase of the tools lifetime. A better understanding of the tribological behaviour of diamond coatings represents then a considerable stake. Intrinsic characteristics like the crystals orientation or the coatings thickness, have a great influence on the tribological properties of this kind of films. But the way the diamond coatings are used also plays an important part on their friction and wear behaviour: the nature of the counterface, the environment, or the variations of the applied normal load induce modifications of the physico-chemical properties of these coatings. The aim of this work is to study the influence of one of these experimental parameters, on the diamond tribological behaviour: the surrounding temperature. Friction tests were then realised at various temperatures with the diamond (obtained by flame process)/HSS couple, under different normal loads. It was shown that the diamond coatings and the discs tracks were significantly modified when increasing the temperature; both the friction mechanisms and the transfer were greatly dependent on the temperature of the environment. The sliding surfaces of the diamond coating and of the HSS disc were observed by Scanning Electron Microscopy and analysed by Energy Dispersive Spectroscopy and Raman spectroscopy to study the sight and the composition of the transferred layer as well as of the friction areas.
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Bai, Shandan, Jingxiang Xu, Yuji Higuchi, Nobuki Ozawa, Koshi Adachi, Shigeyuki Mori, Kazue Kurihara, and Momoji Kubo. "Computational study on low friction mechanism of diamond-like carbon induced by oxidation reaction." In 2016 IEEE 16th International Conference on Nanotechnology (IEEE-NANO). IEEE, 2016. http://dx.doi.org/10.1109/nano.2016.7751361.

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Kim, D. W., and K. W. Kim. "Friction and Wear Characteristics of Diamond-Like Carbon (DLC) Coating Used for Machine Elements." In ASME/STLE 2011 International Joint Tribology Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ijtc2011-61071.

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In this study, friction and wear tests were performed in order to investigate the effect of sliding velocity and normal load on the friction and wear characteristics of multi-layered diamond-like carbon (DLC) coating used for machine elements (automotive engine tappet, etc). Friction and wear tests against AISI 52100 bearing steel ball were performed under various sliding velocities (0.25, 0.5, 1 and 2 m/s) and normal loads (6.13, 20.7 and 49.0 N). As a result of test, kinetic friction coefficients and wear rates of multi-layered DLC coating and AISI 52100 bearing steel were obtained under each test condition. The result showed that the kinetic friction coefficients and wear rates generally decreased with the increase in sliding velocity and normal load.
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Goto, Minoru, F. Honda, and T. Nakahara. "Experimental Study on Superlubricity of Ag Nanometer-Thick Layers by Sliding on a Macroscopic System." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63892.

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The experimental study on the Ag film was carried out using a diamond pin-on-plate type tribometer under ultrahigh vacuum (UHV) conditions. The coefficient of friction varied with the film morphology in nanometric scale up to 170 nm, and superlubricity as minimum coefficient of friction 0.007 was obtained on 5-nm Ag film with network structure. RHEED and STM observation of the film showed that the film morphologies changed drastically during rubbing, and that the superlubricity of this system is attributed to the lamella gliding of Ag (111) sheets.
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Eryilmaz, O. L., A. Erdemir, J. A. Johnson, N. Mehta, and B. Prorok. "A Surface Analytical Study of the Effects of Water and Oxygen on Tribological Behavior of DLC Films." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-64083.

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In this study, we explored the effects of water and oxygen molecules on friction and wear of diamond-like carbon (DLC) films. Specifically, using Raman and x-ray photoelectron spectroscopies we attempted to analyze the near surface chemistry and microstructure of sliding contact surfaces and correlated these findings with changes in friction and wear of DLC films. Tribological tests were run in a ball-on-disk machine under 2 to 5 N loads and in dry and moist nitrogen and oxygen environments. Based on the tribological and surface analytical findings, a mechanistic explanation is provided for the high friction and wear of DLC in dry and humid oxygen environments.
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Li, Longqiu, Shufeng Wang, Andrey Ovcharenko, and Wuyi Wang. "Molecular Dynamics Study of Nano-Tribological Properties of Silicon Nitride Films." In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-34857.

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Silicon nitride films were attracting extensive research interest in the past few decades as hard disk protective coating, especially the beta-silicon nitride (β-Si3N4) films and amorphous silicon nitride (SiNx) films, which have high hardness, chemical durability and low friction coefficient properties against wear, corrosion and reducing the friction resistance, respectively. Considerable efforts have been made in studying silicon nitride. However, it’s difficult to determine its nano-tribological properties experimentally since the results were affected by a lot of contact and environment conditions. The molecular dynamics (MD) simulation method is employed in this work. A rigid diamond sphere modeled as a spherical tip are sliding over a layered silicon nitride film substrate, respectively, to investigate the tribological properties of silicon nitride films. The effect of the relative sliding velocity and sliding direction, the normal force and the thickness of crystalline silicon nitride films on the friction coefficient of silicon nitride films were investigated.
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Liu, Qianfeng, Yuzheng Li, Huang Zhang, and Bo Hanliang. "Experimental Study of Motion-Resistance Force of Hydraulic Cylinder of CRHDM." In 2018 26th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icone26-81214.

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Hydraulic control rod drive technology (HCRDT) is a newly invented patent owned by Institute of Nuclear and New Energy Technology of Tsinghua University with independent intellectual property rights. Hydraulic cylinder is the core part of this technology, so the seal of hydraulic cylinder directly affects the performance of the hydraulic cylinder and HCRDT. A new experiment table was designed and used to study the leakage and internal cylinder friction at various types of friction coupling between internal cylinder and seal ring. The result shows that Motion-Resistance Force is the smallest when the internal cylinder film is TiN. Furthermore, when seal ring film is DLC (Diamond-like carbon) the leakage is the smallest. At last, the best friction coupling scheme was obtained. The experimental results provide the basis for the establishment of the motion model of hydraulic cylinder, which provides a foundation for further design and optimization of hydraulic drive technology of control rod.
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Kannan, Ramasubramanian, Arunachalam Narayanaperumal, and Mamidanna Sri Ramachandra Rao. "Nanocrystalline Diamond Coated Tool Performance in Machining of LM6 Aluminium Alloy/Alumina MMC." In ASME 2015 International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/msec2015-9409.

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Aluminium based metal matrix composites (MMC) gain its importance in automotive and aerospace applications due to their high strength to low weight ratio, which leads to reduced fuel consumption and improved performance. However the usage of MMC is limited due to its poor machinability. The presence of hard reinforcing particles in MMC makes these materials difficult to machine. A cutting tool with high hardness and low coefficient of friction is required for machining this MMC material effectively. In this paper a comparative study on machinability of different coated tools on LM6 aluminum alloy/alumina MMC are conducted and presented. Experimental results on tool wear, cutting force and surface finish indicate that nano-crystalline diamond coated tools (NCD) outperform the other commercially available coated tools for machining this metal matrix composites.
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