Relevant bibliographies by topics / Very low pressure plasma spray

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

Academic literature on the topic 'Very low pressure plasma spray'

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

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Journal articles on the topic "Very low pressure plasma spray"

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Zhang, Tao, Gilles Mariaux, Armelle Vardelle, and Chang-Jiu Li. "Numerical Simulation of Plasma Jet Characteristics under Very Low-Pressure Plasma Spray Conditions." Coatings 11, no. 6 (2021): 726. http://dx.doi.org/10.3390/coatings11060726.

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Plasma spray-physical vapor deposition (PS-PVD) is an emerging technology for the deposition of uniform and large area coatings. As the characteristics of plasma jet are difficult to measure in the whole chamber, computational fluid dynamics (CFD) simulations could predict the plasma jet temperature, velocity and pressure fields. However, as PS-PVD is generally operated at pressures below 500 Pa, a question rises about the validity of the CFD predictions that are based on the continuum assumption. This study dealt with CFD simulations for a PS-PVD system operated either with an argon-hydrogen
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ZHU, LIN, NANNAN ZHANG, RODOLPHE BOLOT, HANLIN LIAO, and CHRISTIAN CODDET. "THERMAL SHOCK PROPERTIES OF YTTRIA-STABILIZED ZIRCONIA COATINGS DEPOSITED USING LOW-ENERGY VERY LOW PRESSURE PLASMA SPRAYING." Surface Review and Letters 22, no. 05 (2015): 1550061. http://dx.doi.org/10.1142/s0218625x15500614.

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Yttria-stabilized zirconia (YSZ) coatings have been frequently used as a thermal protective layer on the metal or alloy component surfaces. In the present study, ZrO 2-7% Y 2 O 3 thermal barrier coatings (TBCs) were successfully deposited by DC (direct current) plasma spray process under very low pressure conditions (less than 1 mbar) using low-energy plasma guns F4-VB and F100. The experiments were performed to evaluate the thermal shock resistance of different TBC specimens which were heated to 1373 K at a high-temperature cycling furnace and held for 0.5 h, followed by air cooling at room t
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Zhang, N., F. Sun, L. Zhu, et al. "Measurement of Specific Enthalpy Under Very Low Pressure Plasma Spray Condition." Journal of Thermal Spray Technology 21, no. 3-4 (2012): 489–95. http://dx.doi.org/10.1007/s11666-012-9738-1.

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Smith, Mark F., Aaron C. Hall, James D. Fleetwood, and Philip Meyer. "Very Low Pressure Plasma Spray—A Review of an Emerging Technology in the Thermal Spray Community." Coatings 1, no. 2 (2011): 117–32. http://dx.doi.org/10.3390/coatings1020117.

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Wen, Jing, Chen Song, Taikai Liu, et al. "Fabrication of Dense Gadolinia-Doped Ceria Coatings via Very-Low-Pressure Plasma Spray and Plasma Spray–Physical Vapor Deposition Process." Coatings 9, no. 11 (2019): 717. http://dx.doi.org/10.3390/coatings9110717.

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Gadolinia-doped ceria (GDC) is a promising electrolyte material for low-temperature solid oxide fuel cells (LT-SOFCs). Many works used ceramic sintering methods to prepare the GDC electrolyte, which was mature and reliable but presented difficulties in rapidly preparing a large area of GDC electrolyte without cracks. The low-pressure plasma spray (LPPS) process has the potential to solve this problem, but few studies have been conducted to date. In this work, submicron GDC powder was agglomerated by a spray drying method to achieve the proper granularity with D50 about 10 μm, and then two dens
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Fan, Xiujuan, Geoffrey Darut, Marie Pierre Planche, Chen Song, Hanlin Liao, and Ghislain Montavon. "Preparation and characterization of aluminum-based coatings deposited by very low-pressure plasma spray." Surface and Coatings Technology 380 (December 2019): 125034. http://dx.doi.org/10.1016/j.surfcoat.2019.125034.

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Ivchenko, Dmitrii, Tao Zhang, Gilles Mariaux, Armelle Vardelle, Simon Goutier, and Tatiana E. Itina. "On the Validity of Continuum Computational Fluid Dynamics Approach Under Very Low-Pressure Plasma Spray Conditions." Journal of Thermal Spray Technology 27, no. 1-2 (2017): 3–13. http://dx.doi.org/10.1007/s11666-017-0658-y.

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Góral, Marek, Tadeusz Kubaszek, Sławomir Kotowski, Jan Sieniawski, and Stanislaw Dudek. "Influence of Deposition Parameters on Structure of TDCs Deposited by PS-PVD Method." Solid State Phenomena 227 (January 2015): 369–72. http://dx.doi.org/10.4028/www.scientific.net/ssp.227.369.

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The paper presents an advanced technology of Thermal Barrier Coatings (TBCs) deposition called Plasma Spray – Physical Vapor Deposition (PS-PVD). The PS-PVD is a low pressure plasma spray technology to deposit coatings out of vapor phase, which enables obtaining of columnar ceramic coatings. In this paper, the influence of various gas mixtures on properties of deposited coatings has been investigated. The measurement of coating thickness was conducted by a light microscopy method, followed by a statistical analysis. All processes had been conducted at a very low feed rate, which additionally a
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Torigoe, Taiji, Hidetaka Oguma, Ikuo Okada, et al. "Fundamental Coating Development Study to Improve the Isothermal Oxidation Resistance and Thermal Cycle Durability of Thermal Barrier Coatings." Materials Science Forum 522-523 (August 2006): 247–54. http://dx.doi.org/10.4028/www.scientific.net/msf.522-523.247.

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Thermal barrier coatings(TBCs) are used in high temperature gas turbines to reduce the surface temperature of cooled metal parts such as turbine blades[1]. TBC consist of a bondcoat (e.g. MCrAlY where M is Co, Ni, CoNi, etc.) and a partially stabilized zirconia ceramic topcoat. Usually, the MCrAlY bondcoat is applied by LPPS (low pressure plasma spray) or HVOF(high velocity oxi-fuel spray). The topcoat is applied by APS (atmospheric plasma splay) or EB-PVD (electron beam-physical vapor deposition). High temperature oxidation properties, thermal barrier properties and durability of TBC are very
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Wen, Jing, Chen Song, Taikai Liu, et al. "Correction: Wen et al. Fabrication of Dense Gadolinia-Doped Ceria Coatings via Very-Low-Pressure Plasma Spray and Plasma Spray–Physical Vapor Deposition Process. Coatings 2019, 9, 717." Coatings 10, no. 3 (2020): 292. http://dx.doi.org/10.3390/coatings10030292.

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Dissertations / Theses on the topic "Very low pressure plasma spray"

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Zhu, Lin. "Etude de la projection plasma sous très faible pression - torches et procédé de dépôt." Phd thesis, Université de Technologie de Belfort-Montbeliard, 2011. http://tel.archives-ouvertes.fr/tel-00703247.

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Au cours de la dernière décennie, la technologie de projection à la torche à plasmasous très faible pression (VLPPS) (inférieure à 10 mbar) a attiré l'attention denombreux chercheurs car ce procédé permet d'envisager la possibilité de réaliser desdépôts de structure voisine de celle des dépôts en phase vapeur avec une cinétiqueproche de celle de la projection thermique classique. Cette technologie vise donc àévaporer totalement ou partiellement des poudres afin de déposer des revêtementsdenses avec une structure colonnaire ou mixte.Le travail effectué dans cette étude à consisté à étudier et à
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Song, Chen. "Potentialité de préparation de revêtements céramiques par projection plasma sous basse pression." Thesis, Bourgogne Franche-Comté, 2018. http://www.theses.fr/2018UBFCA009/document.

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En tant que technologie de projection thermique avancée, la projection plasma sous basse pression (LPPS) permet d'obtenir des revêtements de haute qualité et peut combler l'écart d'épaisseur entre les technologies de projection thermique conventionnelles et les procédés de couche mince standard. En outre, LPPS permet de construire des revêtements uniformes avec diverses microstructures; le dépôt a lieu non seulement à partir des éclaboussures liquides, mais aussi à partir des amas nanométriques ainsi que de la phase vapeur en fonction des conditions opérationnelles. Afin de continuer à amélior
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Fan, Xiujuan. "Elaboration et caractérisation des revêtements base Titane fabriqués par projection thermique sous très basse pression." Thesis, Bourgogne Franche-Comté, 2019. http://www.theses.fr/2019UBFCA006.

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Les procédés de projection thermique permettent de fabriquer des revêtements d’une grande versatilité (métaux, céramiques, polymères ou autres composites), relativement épais (de quelques microns à plusieurs centimètres) avec une vitesse de dépôt relativement importante. Cependant des contraintes existent notamment l’impossibilité d’utiliser des précurseurs à fusion non congruente tels que les nitrures (TiN par exemple) limitant leur application industrielle (aéronautique, énergie, biomédical, etc.). Ce type de revêtement est principalement obtenu par les procédés couches minces. La projection
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Book chapters on the topic "Very low pressure plasma spray"

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Shimbo, Yukio, Kazumoto Niki, Makoto Kabasawa, and Kyoji Tachikawa. "High-Tc Magnetic Shields Prepared by a Low Pressure Plasma Spray." In Advances in Cryogenic Engineering Materials. Springer US, 1994. http://dx.doi.org/10.1007/978-1-4757-9053-5_34.

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Hu, Cui, Yaran Niu, Hong Li, Xuebin Zheng, Chuanxian Ding, and Jinliang Sun. "Oxidation Behavior of SiC Reinforced ZrB2 Composite Coating Prepared by Low Pressure Plasma Spray." In Ceramic Transactions Series. John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118932995.ch53.

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Steffens, H. D., K. H. Busse, and M. Schneider. "SPRAY PARTICLE BEHAVIOUR IN A LOW PRESSURE PLASMA JET." In Advances in Thermal Spraying. Elsevier, 1986. http://dx.doi.org/10.1016/b978-0-08-031878-3.50009-5.

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Höhle, H. M. "APPLICATION OF COMPLETELY COMPUTER-CONTROLLED SPRAY SYSTEMS TO INCREASE THE QUALITY OF LOW PRESSURE PLASMA SPRAYED COATINGS." In Advances in Thermal Spraying. Elsevier, 1986. http://dx.doi.org/10.1016/b978-0-08-031878-3.50025-3.

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G. Abrahamyan, Martin. "Vortices in Rotating and Gravitating Gas Disk and in a Protoplanetary Disk." In Vortex Dynamics Theories and Applications. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.92028.

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Nonlinear equations describing dynamics of 2D vortices are very important in the physics of the ocean and the atmosphere and in plasma physics and Astrophysics. Here linear and nonlinear 2D vortex perturbations of gravitating and light gaseous disks are examined in the geostrophic and post-geostrophic approximations. In the frame of geostrophic approximation, it is shown that the vortex with positive velocity circulation is characterized by low pressure with negative excess mass density of substance. Vortex with negative circulation has higher pressure and is a relatively tight formation with the positive excess mass density. In the post-geostrophic approximation, structures of the isolated monopole and dipole vortex (modons) solutions of these equations are studied. Two types of mass distributions in dipole vortices are found. The first type of modon is characterized by an asymmetrically positioned single circular densification and one rarefaction. The second type is characterized by two asymmetrically positioned densifications and two rarefactions, where the second densification-rarefaction pair is crescent shaped. The constant density contours of a dipole vortex in a light gas disk coincide with the streamlines of the vortex; in a self-gravitating disk, the constant density contours in the vortex do not coincide with streamlines. Possible manifestations of monopole and dipole vortices in astrophysical objects are discussed. Vortices play decisive role in the process of planet formation. Gas in a protoplanetary disk practically moves on sub-Keplerian speeds. Rigid particles, under the action of a head wind drags, lose the angular momentum and energy. As a result, the ~10 cm to meter-sized particles drift to the central star for hundreds of years. Long-lived vortical structures in gas disk are a possible way to concentrate the ~10 cm to meter sized particles and to grow up them in planetesimal. Here the effect of anticyclonic Burgers vortex on formation of planetesimals in a protoplanetary dusty disc in local approach is also considered. It is shown that the Burgers vortex with homogeneously rotating kernel and a converging radial stream of substance can effectively accumulate in its nuclear area the meter-sized rigid particles of total mass ∼1028 g for characteristic time ∼106 year.
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Conference papers on the topic "Very low pressure plasma spray"

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Wang, Di, Xiao-Tao Luo, and Chang-Jiu Li. "Microstructure and Ablation Behavior of Very Low-Pressure Plasma Sprayed ZrB2-Based Coatings." In ITSC2021, edited by F. Azarmi, X. Chen, J. Cizek, et al. ASM International, 2021. http://dx.doi.org/10.31399/asm.cp.itsc2021p0741.

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Abstract The effect of deposition pressure on the microstructure and ablation behavior of ZrB2 coatings deposited by very low pressure plasma spraying is investigated. The results show that under a chamber pressure less than 50 kPa, as the spray chamber pressure decreases, the porosity of the coating deposited at the same distance decreases, and the coating prepared under 100 Pa presents the lowest porosity of 1.79 %. Furthermore, among the ZrB2 coatings deposited at 100 Pa, 5 kPa, 10 kPa and 50 kPa, the dense coating deposited at 100 Pa showed the lowest ablation rate of 0.33 μm/s, 0.75±0.08
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Chen, H. C., J. Heberlein, and T. Yoshida. "Preparation of Films for Solid Oxide Fuel Cells by Center-Injection Low Pressure Plasma Spraying." In ITSC 1998, edited by Christian Coddet. ASM International, 1998. http://dx.doi.org/10.31399/asm.cp.itsc1998p1309.

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Abstract A new plasma spray process was developed for the rapid deposition of very dense electrolyte layers for solid oxide fuel cells (SOFCs). The dense yttria-stabilized zirconia (YSZ) film was prepared by a center-injection low pressure plasma spraying (CI-VPS) process on various substrates in a triple-torch reactor. For deposition on porous substrates, an intermediate layer was applied using conventional atmospheric plasma spraying (APS) to close the large pores in the substrate. The films were characterized by XRD, SEM, and EMPA. The porosity of the film was analyzed by computerized image
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Valente, T., L. Bertamini, and M. Tului. "Effects of Pressure Deposition on Plasma Jet and Coatings Microstructure." In ITSC 1996, edited by C. C. Berndt. ASM International, 1996. http://dx.doi.org/10.31399/asm.cp.itsc1996p0463.

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Abstract Pressure inside the spray chamber plays a key role during coatings manufacturing by thermal spraying and coating properties can be strongly affected by the selected pressure value. Spraying at low pressure results in a longer plasma jet length, higher particle velocity, lower coating porosity and higher purity and phase stability. For what concerns plasma-particle interactions, a reduction of pressure value drastically decreases heat transfer towards particles, therefore high power plasma equipment must be used to achieve a suitable melting degree of sprayed powders. Effects of low pr
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Cojocaru, Cristian V., Maniya Aghasibeig, and Eric Irissou. "MCrAlX (X = Y, Hf and Si) Bond Coats by Cold Spray for High Temperature Applications." In ITSC2021, edited by F. Azarmi, X. Chen, J. Cizek, et al. ASM International, 2021. http://dx.doi.org/10.31399/asm.cp.itsc2021p0036.

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Abstract MCrAlX powder compositions (M= Ni; Co and X= Y; Hf; Si or combination) are often thermally sprayed (TS) via vacuum plasma spray (VPS); low pressure plasma spray (LPPS) or high velocity oxy-fuel (HVOF) to produce high temperature oxidation and hot corrosion resistant bond coats (BC) for thermal barrier coatings (TBCs). Cold spray (CS) technology is currently considered as a promising alternative to the traditional TS solutions having the advantage of delivering oxide-free and very dense metallic coatings at relatively lower costs compared to VPS and LPPS. Here; we first present high-pr
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Gross, K. A., P. Fauchais, M. Vardelle, J. Tikkanen, and J. Keskinen. "Vaporization and Ultra-Fine Particle Generation during the Plasma Spraying Process." In ITSC 1997, edited by C. C. Berndt. ASM International, 1997. http://dx.doi.org/10.31399/asm.cp.itsc1997p0543.

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Abstract The thermal spray process melts powder at very high temperatures and propels the molten material to the substrate to produce a coherent deposit. This heating produces a certain amount of vaporization of the feedstock. Upon exiting the plasma plume the fast cooling conditions lead to condensation of the vapor. An electrical low pressure impactor was used to monitor the concentration of ultra-fine particles at various radial and axial distances. Metal, namely iron powder, showed very high concentration levels which increase with distance. Ultra-fine particles from ZrO2-8Y2O3 reached a p
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Ernst, Peter, Jaime de Jesus Garcia Villarreal, and Kent Froelund. "Technology and Contribution of SUMEBore Cylinder Liner Surface Coatings on Lubricant Oil Consumption Reduction on an EMD710 Diesel Engine." In ASME 2012 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/icef2012-92083.

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Rising fuel prices and more stringent requirements in the field of emissions such as nitrogen oxides, particulate matter and carbon dioxide are increasing the pressure on the engine manufacturers to utilize technologies that contribute to a reduction in these emissions. As a result, interest in cylinder surface coatings has risen considerably in the last three to four years, and particularly in the SUMEBore® coating solution from Sulzer Metco. Such coatings are applied by a powder-based atmospheric plasma spray process (APS). The APS method is very flexible and can also process materials to wh
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Hershkowitz, N., M. H. Cho, A. Wendt, and J. Pruski. "Very low pressure RF glow discharge plasma using multi-dipole surface magnetic fields." In 1990 Plasma Science IEEE Conference Record - Abstracts. IEEE, 1990. http://dx.doi.org/10.1109/plasma.1990.110849.

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Wright, J. V., and J. E. Restall. "Evaluation of the Potential of Low Pressure Plasma Spraying and Simultaneous Spray Peening for Processing of Superalloys." In Superalloys. TMS, 1988. http://dx.doi.org/10.7449/1988/superalloys_1988_495_504.

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Izguierdo, Eduador, Jose Gonzalez-Aguilar, and Laurent Fulcheri. "Electrode sheath model for an argon free burning arc discharge at very high pressure and low intensity." In 2008 IEEE 35th International Conference on Plasma Science (ICOPS). IEEE, 2008. http://dx.doi.org/10.1109/plasma.2008.4590640.

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von Niessen, Konstantin, and Malko Gindrat. "Vapor Phase Deposition Using a Plasma Spray Process." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-22640.

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Plasma spray - physical vapor deposition (PS-PVD) is a low pressure plasma spray technology recently developed by Sulzer Metco AG (Switzerland) to deposit coatings out of the vapor phase. PS-PVD is developed on the basis of the well established low pressure plasma spraying (LPPS) technology. In comparison to conventional vacuum plasma spraying (VPS) and low pressure plasma spraying (LPPS), these new process use a high energy plasma gun operated at a work pressure below 2 mbar. This leads to unconventional plasma jet characteristics which can be used to obtain specific and unique coatings. An i
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Reports on the topic "Very low pressure plasma spray"

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Fleetwood, James D., Elliot Slamovich, Rodney Wayne Trice, Aaron Christopher Hall, and James F. McCloskey. Doped solid oxide fuel cell electrolytes produced via combination of suspension plasma spray and very low pressure plasma spray. Office of Scientific and Technical Information (OSTI), 2012. http://dx.doi.org/10.2172/1055901.

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Herman, H., and R. A. Zatorski. Modular Low-Pressure Plasma Spray System for Coating of Machine Elements. Defense Technical Information Center, 1986. http://dx.doi.org/10.21236/ada198658.

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