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Статті в журналах з теми "Layer Production"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Santo, Loredana, and Fabrizio Quadrini. "Mold Production by Selective Laser Sintering of Resin Coated Sands." International Journal of Surface Engineering and Interdisciplinary Materials Science 1, no. 2 (2013): 1–13. http://dx.doi.org/10.4018/ijseims.2013070101.

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Small sand molds for aluminum casting were produced by selective laser sintering (SLS) of pre-coated sands. A diode laser source with a rectangular laser beam spot was used to perform single and multi-layer processing tests. Subsequently, small sand molds were produced and tested in casting operations. Single layer processing was performed by changing laser power, scan rate and distance of the processed surface from the beam focus. In multiple layer processing, some process changes were made to achieve a perfect joining of adjacent layers. More changes were necessary for the mold production so

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2

Chen, Ya-jun, Zhi-yuan Xu, Dong-wen Ge, Xu Zhang, Bo-hua Huang, and Tao Wang. "Research and Practice of Intelligent Separate Production Technology with Cable in Huabei Oilfield." Journal of Physics: Conference Series 2594, no. 1 (2023): 012033. http://dx.doi.org/10.1088/1742-6596/2594/1/012033.

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Abstract In order to improve the separate production effect of sandstone reservoir in Huabei Oilfield and give full play to the production capacity of medium and low permeability layers, the intelligent separate production technology with cable is designed and developed. The technology uses cable packer to seal each layer in the well, and a set of intelligent separate production device is connected to the corresponding string position of each target layer. During the production process, the intelligent separate production device can send instructions according to the ground control center Open

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3

Kazakov, Alexander, Nikolai Pkhaiko, Konstantin Safronov, et al. "Production and Research of Low-Density Metal Materials." Infocommunications and Radio Technologies 5, no. 3 (2022): 342–52. http://dx.doi.org/10.29039/2587-9936.2022.05.3.25.

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For experiments on laser interaction with matter, a method has been developed for manufacturing a low-density material from aluminum and copper by the method of resistive sputtering in an inert gas – argon. Deposition was carried out at two gas pressures: 40 Pa and 440 Pa. The densities of the obtained samples were determined by the gravimetric method: the mass of the sprayed layer was measured by weighing the substrate before and after deposition, the volume was calculated based on measurements of the material thickness using an optical profilometer. The thickness of the deposition layer is 7

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4

Renbi, Abdelghani, та Jerker Delsing. "A novel production process for 10 μm microvias." International Symposium on Microelectronics 2017, № 1 (2017): 000468–72. http://dx.doi.org/10.4071/isom-2017-wp53_078.

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Abstract This work investigates the capability of drilling and metallization of microvias of diameter less than 10 μm with aspect ratios of 1–10, using a fully additive process. The microvia has been produced using a sequential build up layer of urethane through which the via has been produced. The urethane layer is applied using spin-coating. Current process setting produces a 15 μm layer thickness. For thicker urethane, multiple layers are applied. Drilling of the via-hole through is made using 266 nm UV laser. The metallisation of the via-hole was made using a process called Covalent Bonded

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5

Napadłek, Wojciech, and Adam Woźniak. "Influence of Laser Ablation Texturing on the 40NiCrMo6 Steel Surface Layer." Key Engineering Materials 604 (March 2014): 24–27. http://dx.doi.org/10.4028/www.scientific.net/kem.604.24.

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Laser texturing of the surface layer of materials is a modern technology with its significant prospects for production of engineering machinery. Produced with this technology oil micro-containers have a major impact on the tribological cooperation improving. The article presents methodology and results of laser texturing of surface layer of alloy steel 40NiCrMo6. The material is usually applied for foot rod of combustion engines production. Application of the laser ablation micro treatment on the side surfaces the foot of the rod allowed to fabricate desired texture in the surface layer, made

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6

Svéda, Mária, and András Roósz. "Development of Amorphous and Microstructured Surface Layer by Laser Surface Treatment." Materials Science Forum 752 (March 2013): 175–82. http://dx.doi.org/10.4028/www.scientific.net/msf.752.175.

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The aim of the research was to develop an amorphous and microstructured layer on non-amorphous alloys by laser surface treatment. The as-prepared Cu based master alloy ingots were imbedded in a metallic sinking with Wood metal to assure the good thermal conductivity during the laser treatment. The laser remelting, alloying and coating techniques were applied from the laser surface treatment techniques. The surface layer production and a subsequent rapid cooling were performed using CO2 laser and pulse and continuous modes of Nd:YAG laser. The characterization of the microstructure of the resul

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7

Čapková, Veronika, and Ivana Zetková. "RP Technology Used for the Production of Metal Parts." Materials Science Forum 818 (May 2015): 280–83. http://dx.doi.org/10.4028/www.scientific.net/msf.818.280.

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Rapid prototyping (RP) is a modern technology which can produce components with very complicated shapes using different materials. This method also allows the production of components with shapes and geometry that would be very difficult to produce using conventional methods such as milling, welding and so on. A 3D printer builds an object from bottom to top, layer by layer. The purpose of this article is to introduce rapid prototyping technology for printing metal products. It focuses on various areas of application, advantages and disadvantages of this manufacturing technology as well as int

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8

Metel, Alexander S., Tatiana Tarasova, Andrey Skorobogatov, Pavel Podrabinnik, Yury Melnik, and Sergey N. Grigoriev. "Feasibility of Production of Multimaterial Metal Objects by Laser-Directed Energy Deposition." Metals 12, no. 10 (2022): 1566. http://dx.doi.org/10.3390/met12101566.

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The article focuses on the possibility of manufacturing bimetallic products for specific industrial applications using laser-directed energy deposition (LDED) additive technology to replace the traditional brazing process. Preferential process regimes were determined by parametric analysis for the nickel-alloy–steel and molybdenum–steel pairs. Comparative studies of the microstructure and hardness of the deposited layers and the transition layer at the boundary of the alloyed materials have been carried out. It is shown that LDED provides better transition layer and operational properties of t

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9

Van Der Haar (nee Kosten), Katarina, and Manouchehr Haghighi. "A new approach for production forecasting from individual layers in multi-layer commingled tight gas reservoirs." APPEA Journal 62, no. 2 (2022): S192—S195. http://dx.doi.org/10.1071/aj21119.

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Estimating future production in multi-layer tight gas reservoirs is necessary, but problematic. Initial production looks promising but soon decreases to levels that are much lower than first anticipated. Boundary-dominated flow to which common production data analysis can be applied to, takes up to 8 years to establish, yet future production estimations must be made at the time of drilling. Common industry software does not fully assess individual layer contribution because large uncertainties exist in layer-specific contributions to total production. Many engineers tend to use analysis method

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10

Li, Yun Tao, Fei Xiang Jin, Ning Xu Wang, Qing Chang, and De Yu Liu. "The Influence of GGG70L Laser Surface Hardening Power on Quenched Layer Performance." Advanced Materials Research 774-776 (September 2013): 1051–54. http://dx.doi.org/10.4028/www.scientific.net/amr.774-776.1051.

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GGG70L die material laser phase change hardening aims to discover the Quenched Layer performance of the GGG70L die material hardened by the laser of different power. Making comparison and analysis in the experiment and considering the actual production factors such as cost, working efficiency and product quality standard, it is concluded that laser power being 1900 w, laser scanning speed 6mm/s, spot size 3×15 mm2, focal length being 305mm, the surface of the material quality can meet the requirements of industrial production, laser surface quenched layer becomes harder, good abrasion resistan

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11

Rossier-Miranda, Francisco J., Karin Schroën, and Remko Boom. "Microcapsule production by an hybrid colloidosome-layer-by-layer technique." Food Hydrocolloids 27, no. 1 (2012): 119–25. http://dx.doi.org/10.1016/j.foodhyd.2011.08.007.

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12

Begendikova, Zhannur, and Amina Bukayeva. "APPLICATION OF ADDITIVE TECHNOLOGIES IN MODERN FOUNDRY PRODUCTION." Вестник КазАТК 117, no. 2 (2021): 20–27. http://dx.doi.org/10.52167/1609-1817-2021-117-2-20-27.

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The paper studies and analyzes the use of additive technologies in modern foundry production, determining their innovative development to create new products with high quality, reliability and determining its competitiveness in the world market of machine-building products. The essence of SLS-technology is defined as follows: model material - polystyrene powder with particle size of 50-150 microns - is rolled by a special roller on the working platform installed in a sealed chamber with an inert gas atmosphere - nitrogen. The laser beam "runs" where the computer "sees" the "body" in the given

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13

Begendikova, Zhannur, and Amina Bukayeva. "APPLICATION OF ADDITIVE TECHNOLOGIES IN MODERN FOUNDRY PRODUCTION." Вестник КазАТК 117, no. 2 (2021): 20–27. http://dx.doi.org/10.52167/1609-1817-2021-117-2-20-27.

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Анотація:

The paper studies and analyzes the use of additive technologies in modern foundry production, determining their innovative development to create new products with high quality, reliability and determining its competitiveness in the world market of machine-building products. The essence of SLS-technology is defined as follows: model material - polystyrene powder with particle size of 50-150 microns - is rolled by a special roller on the working platform installed in a sealed chamber with an inert gas atmosphere - nitrogen. The laser beam "runs" where the computer "sees" the "body" in the given

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14

Sathyendranath, Shubha, and Trevor Platt. "New production and mixed-layer physics." Journal of Earth System Science 103, no. 2 (1994): 177–88. http://dx.doi.org/10.1007/bf02839535.

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15

Dalgarno, K. W. "Production grade tooling via layer manufacture." Rapid Prototyping Journal 7, no. 4 (2001): 203–6. http://dx.doi.org/10.1108/eum0000000005752.

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16

Xu, Mingsheng, Daisuke Fujita, Keisuke Sagisaka, Eiichiro Watanabe, and Nobutaka Hanagata. "Production of Extended Single-Layer Graphene." ACS Nano 5, no. 2 (2011): 1522–28. http://dx.doi.org/10.1021/nn103428k.

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17

Kachaev, A. A., M. L. Vaganova, Yu E. Lebedeva, and M. V. Turchenko. "APPLICATION OF ADDITIVE TECHNOLOGIES FOR OBTAINING OF SILICON CARBIDE CERAMIC MATERIALS." Steklo i Keramika, no. 11 (November 2022): 37–42. http://dx.doi.org/10.14489/glc.2022.11.pp.037-042.

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The types of additive manufacturing and the prospects of their application for the production of articles from ceramic materials are considered. The most popular for obtaining parts of complex configurations are such additive technologies as laser stereolithography, digital light processing, inkjet printing, direct ink writing, three-dimensional printing, selective laser sintering, selective laser melting, lamination object manufacturing, layer-by-layer fusion of material.

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18

Khachatryan, Hayk, Heewung Kim, Sung-Nam Lee, Moojin Kim, and Kyoung-Bo Kim. "Sacrificial layer for laser lift-off process for flexible-display production." Vacuum 170 (December 2019): 108968. http://dx.doi.org/10.1016/j.vacuum.2019.108968.

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19

Kallon, Sanpha, Tamba S Sonda, Abdul Rahman Sesay, and Jesse Patrick Joseph Nyandebo. "Broiler, Layer Production Costs and Returns at Animal Production Division (APD) Njala University, Sierra Leone West Africa." International Journal of Science and Research (IJSR) 11, no. 3 (2022): 451–56. http://dx.doi.org/10.21275/sr22204155402.

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20

Siebold, Markus. "Additive Manufacturing for Serial Production of High-Performance Metal Parts." Mechanical Engineering 141, no. 05 (2019): 49–50. http://dx.doi.org/10.1115/1.2019-may5.

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Additive manufacturing (AM) is a process that builds parts layer-by-layer from sliced CAD models to form solid objects. Just a few years ago, 3D printing was primarily used for rapid prototyping. Due to improvements in performance, AM has the potential to become a new key technology for serial production. Innovative advances like selective laser melting (SLM) enable the manufacture of high-performance metal parts. Modern printers contain several lasers, which enables the production of multiple parts at the same time. AM includes much more than just 3D printing: It’s an end-to-end process, from

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21

Huang, Sheng Hua. "Research and Application of Technical Pipe String with Integrating Layered Gas Production in Oil Production Engineering of Mining Engineering." Advanced Materials Research 577 (October 2012): 137–41. http://dx.doi.org/10.4028/www.scientific.net/amr.577.137.

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In oil production engineering, layered gas production is an important mining technology. While the interlayer pressure of natural gas well differs big, the interlayer interference forms. It is difficult to exploit the low pressure layer and control the high pressure layer. Developing a technical pipe string with integrating layered gas production can solve the above problems. This technical pipe string changes throttling area by striking, solves the conflicts between each layer, mines each layer uniformly and enhances recovery. It applied to Tai 4-28 gas well in Sebei-gas-field which is locate

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22

Kenny, Stephen, Kai Matejat, Carsten Schauer, and Sven Lamprecht. "Production of Uniform Dimension Copper Pillars for Flip Chip CSP." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2013, DPC (2013): 000778–810. http://dx.doi.org/10.4071/2013dpc-tp22.

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Copper pillars in FCCSP positioned on the substrate are being used instead of solder only joints to meet reliability targets and the demand for smaller feature size, thinner dies and to achieve a well defined stand off. The transfer of the copper pillars from the die to the substrate is required to ensure a reliable thinning process for the dies. The plated copper pillar geometry is dependent on the size of the solder resist opening and thickness. The uniformity and in particular the height of the pillar is very dependant on the electrolytic copper plating parameters used. The height uniformit

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23

Leli, Cheng, Zhao Shaoze, Yin Senlin, Chen Gongyang, Chen Ling, and Xiong Ting. "Dynamic production characteristics and effect analysis of combined gas production well of coalbed methane and tight gas." Journal of Petroleum Exploration and Production Technology 12, no. 2 (2021): 397–407. http://dx.doi.org/10.1007/s13202-021-01341-9.

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AbstractFor gas reservoirs with poor physical properties, the implementation of a single well with multi-layer combined production is an effective means to achieve efficient development. However, because of the differences in the geological conditions of the vast majority of multi-layer gas reservoirs, the dynamic characteristics of the gas wells will be complex under the multi-layer combined mining mode, and the inevitable interlayer interference in the production process will affect the development effect. In this paper, the coal seam and the dense layer are opened for production at the same

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24

Cuomo, Francesca, Francesco Lopez, Maria G. Miguel, and Björn Lindman. "Vesicle-Templated Layer-by-Layer Assembly for the Production of Nanocapsules." Langmuir 26, no. 13 (2010): 10555–60. http://dx.doi.org/10.1021/la100584b.

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25

Chandimali, Nisansala, Seon-Gyeong Bak, Eun Hyun Park, Sun Hee Cheong, Sang-Ik Park, and Seung-Jae Lee. "3D bioprinting: Advancing the future of food production layer by layer." Food Chemistry 471 (April 2025): 142828. https://doi.org/10.1016/j.foodchem.2025.142828.

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26

Pereira, Juan Carlos, Ramón Moreno, Christian Tenbrock, Arnold Herget, Thomas Wittich, and Kelvin Hamilton. "Advances in Multi-Process Hybrid Production Cells for Rapid Individualised Laser-Based Production." Applied Sciences 11, no. 4 (2021): 1812. http://dx.doi.org/10.3390/app11041812.

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In this paper, the approach and main advances made in multi-process hybrid production cells (HyProCell) for rapid individualised laser-based production are compiled and discussed, including highlights and achievements. HyProCell constructs automated manufacturing platforms that integrate highly flexible laser-based additive build processes with more conventional yet precise subtractive machining processes and include novel solutions like automatic powder removal system/machines and robot arms in integrated multi-process production cells. The HyProCell approach can either build parts additively

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27

Napadłek, W. "Analysis of Selected Properties 100CrMnSi6-4 Surface Layer after Laser Micro-Smelting." Archives of Metallurgy and Materials 62, no. 2 (2017): 757–62. http://dx.doi.org/10.1515/amm-2017-0113.

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AbstractThe use of laser ablation phenomenon with the “thermal effect” to produce surface textures, mainly lubricant micro-containers in the form of spherical micro-bowls in the surface layer of 100CrMnSi6-4 alloy of bearing steel. This is interesting research topic. The application the local (zonal) laser hardening of the steel surface layer on the surface of the bearing raceway or casts gives technological opportunities to deploy those technologies in the production process. The article presents the selected results of the own laboratory studies of hardness, microstructure and surface stereo

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28

Chabanenko, A. V., V. O. Smirnova, A. O. Smirnov, and N. N. Rozhkov. "QUALITY ASSURANCE OF ADDITIVE MANUFACTURING THROUGH LAYER-BY-LAYER CONTROL SYSTEM." Issues of radio electronics, no. 10 (October 20, 2018): 17–24. http://dx.doi.org/10.21778/2218-5453-2018-10-17-24.

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Today additive technologies are one of the most dynamically developing types of «digital» production. They allow to achieve acceleration of the solution of problems of preparation and adjustment of production and are already actively applied and to production of finished goods. Additive technologies are a part of industrial robots (IR). On their basis there is a possibility of the organization of complexes with a possibility of fast adjustment and readjustment which, in the majority, are intended for building in the flexible automated lines of additive production. The greatest efficiency of au

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29

Hopkinson, N., and P. Dicknes. "Analysis of rapid manufacturing—using layer manufacturing processes for production." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 217, no. 1 (2003): 31–39. http://dx.doi.org/10.1243/095440603762554596.

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Rapid prototyping (RP) technologies that have emerged over the last 15 years are all based on the principle of creating three-dimensional geometries directly from computer aided design (CAD) by stacking two-dimensional profiles on top of each other. To date most RP parts are used for prototyping or tooling purposes; however, in future the majority may be produced as end-use products. The term ‘rapid manufacturing’ in this context uses RP technologies as processes for the production of end-use products. This paper reports findings from a cost analysis that was performed to compare a traditional

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30

Paton, Keith R., James Anderson, Andrew J. Pollard, and Toby Sainsbury. "Production of few-layer graphene by microfluidization." Materials Research Express 4, no. 2 (2017): 025604. http://dx.doi.org/10.1088/2053-1591/aa5b24.

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31

Guan, Qin. "Research on High Permeability Layer-Penetration Oil Production." Applied Mechanics and Materials 580-583 (July 2014): 2539–44. http://dx.doi.org/10.4028/www.scientific.net/amm.580-583.2539.

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Domestic and foreign road construction for many years of practical experience shows that pavement early damage and between the base and the surface layer of oil related to the quality of construction, the quality of life of the future road surface layer has a major influence[1]. In order for the preparation of high-permeable dialysis oils heavy investment in production, combined with permeable layer of oil in the production of enterprises, taking into account the conditions and existing equipment of enterprises, the paper layer on oil production, put forward the requirements for equipment, pro

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32

Wang, Kai, Wei Zheng, Yufei He, et al. "Analysis of Inter-Layer Interference in Multi-Layer Reservoir Commingled Production Wells." Processes 12, no. 8 (2024): 1644. http://dx.doi.org/10.3390/pr12081644.

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During the operation of commingled production wells, inter-layer interference is a key factor affecting the recovery rate and flooding extraction efficiency. This study proposes a well deliverability equation that is characterized by a multi-parameter coupled inter-layer interference coefficient, which is applied to quantify the commingled production wells in a multi-layer reservoir. This study used principal component analysis (PCA) to study the combined effects of correlation parameters for inter-layer interference. The results show that the starting pressure gradient and the crude oil visco

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33

DENGİZ, Emine Özlem, and Mevlüt GÜRBÜZ. "Production of Single-Layer and Multi-Layer Structures by Tape Casting Method." Karadeniz Fen Bilimleri Dergisi 13, no. 4 (2023): 1807–23. http://dx.doi.org/10.31466/kfbd.1337108.

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Şerit döküm yöntemi seramik, metal ve plastik malzemeler için ince şerit yapıların üretiminde kullanılan bir imalat tekniğidir. Sıvı faz üretim tekniği olarak sınıflandırılan şerit döküm yöntemi, diğer döküm yöntemlerinden teknik olarak ayrışmaktadır. Yöntemin işleyişi, havası alınmış döküm sıvısının altlık yüzey üzerine dökülerek Doctor Blade olarak da bilinen sıyırıcı bıçak yardımıyla istenen kalınlıkta katmanlar oluşturulmak üzere yüzeye yayılmasına dayanır. Döküm sürecince ya altlık yüzey hareketlidir ya da sıyırıcı bıçak hareketlidir. Döküm sıvısı; toz malzeme, çözücü, dağıtıcı, plastikle

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34

Svéda, Mária, Dóra Janovszky, Kinga Tomolya, et al. "Ni Content Surface Layer Produced by Laser Surface Treatment on Amorphisable Cu Base Alloy." Materials Science Forum 649 (May 2010): 101–6. http://dx.doi.org/10.4028/www.scientific.net/msf.649.101.

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The aim of our research was to comparatively examine Ni content surface layers on amorphisable Cu base alloy produced by different laser surface treatments. Laser surface treatment (LST) techniques, such as laser surface melting, laser alloying and laser cladding, provide a wide range of interesting solutions for the production of wear and corrosion resistant surfaces. [1,2] With LST techniques, the surface can be: i) coated with a layer of another material by laser cladding, ii) the composition of the matrix can be modified by laser alloying. [3] Two kinds of laser surface treatment technolog

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35

Akriti, Gupta. "Advent of Additive Manufacturing and its Types." Advancement in Mechanical Engineering and Technology 7, no. 3 (2024): 1–8. https://doi.org/10.5281/zenodo.12644190.

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<em>Additive manufacturing (AM) or 3D printing is a complete process that creates products layer by layer based on digital molds. This session will take an in-depth look at various manufacturing technologies and highlight their unique capabilities and applications. Key techniques include stereo lithography (SLA), which uses a laser to freeze liquid into a plastic sheet. Fused deposition modeling (FDM) extrudes thermoplastic filaments to form a layer-by-layer process. Selective laser sintering (SLS) sinters powder materials such as nylon, while electron beam melting (EBM) uses an electron beam

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36

Vandenbeusch, Marie, Daniel O’Flynn, and Benjamin Moreno. "Layer by Layer: The Manufacture of Graeco-Roman Funerary Masks." Journal of Egyptian Archaeology 107, no. 1-2 (2021): 281–98. http://dx.doi.org/10.1177/03075133211050657.

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Ptolemaic cartonnage masks were produced by layering textiles – or reused papyrus sheets – with plaster and glue. Despite the use of the same basic components, the process of manufacture could vary depending on shape, size, time and place. This article aims to clarify the production methods and the different phases of manufacture of these masks, using different imagery techniques, such as X-ray, CT and surface scanning. To provide a better understanding of their production, we examined these masks layer by layer, considering the use of a mould to shape the face from inside, the layering of tex

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Zhu, Hongying, Yaoguang Qi, Hao Hu, Fenna Zhang, Chuankai Jing, and Junwei Zhao. "A Wellbore Pressure Control Method for Two-Layer Coal Seam Gas Coproduction Wells." Energies 16, no. 20 (2023): 7148. http://dx.doi.org/10.3390/en16207148.

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In coal seam gas (CSG) coproduction wells, due to the different production pressures of CSG production layer at different depths, the interlayer interference in wellbore seriously affects the gas production of a coproduction well. To effectively suppress the interlayer interference of the wellbore, a wellbore pressure distribution method for a two-layer coproduction well is proposed. Based on the analysis of the factors influencing the flow pressure distribution in the wellbore of two-layer coproduction wells, a method of coproduction flow pressure adjustment by regulating the wellhead pressur

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Géczy, Attila, Gergő Havellant, Réka Bátorfi, et al. "Filtering Efficiency of Sustainable Textile Materials Applied in Personal Protective Face Mask Production during Pandemic." Materials 16, no. 3 (2023): 903. http://dx.doi.org/10.3390/ma16030903.

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The COVID-19 outbreak increased demand for personal protective respirator masks. Textile masks based on cloth materials appeared to be a sustainable, comfortable, and cost-effective alternative available in global communities. In this study, we used laser-based particle counting for mask material qualification to determine the concentration filtering efficiency in general, everyday community use. The efficiencies of eleven different commercially available textile materials were measured in single-, double-, and triple-layer configurations according to their grammage, mesh (XY), and inter-yarn

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39

Ghiorghiu, F., T. Aissou, M. Minissale, T. Angot, G. De Temmerman, and R. Bisson. "Nitrogen retention and ammonia production on tungsten." Nuclear Fusion 61, no. 12 (2021): 126067. http://dx.doi.org/10.1088/1741-4326/ac3698.

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Abstract We report a systematic study that quantifies nitrogen retention and ammonia production on tungsten and that sheds light on the mechanism for ammonia formation on ITER’s divertor material. Saturation of the nitrogen-implanted layer in polycrystalline tungsten is observed at room temperature for a nitrogen ion fluence in the low 1021 N+ m−2 range. Nitrogen desorption from this N-implanted layer occurs in the 800–1100 K temperature range and exhibits a zero-order kinetics with an activation energy of 1.45 eV and a prefactor of 5 × 1024 m−2 s−1. Following nitrogen and deuterium co-implant

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Janusziewicz, Rima, John R. Tumbleston, Adam L. Quintanilla, Sue J. Mecham, and Joseph M. DeSimone. "Layerless fabrication with continuous liquid interface production." Proceedings of the National Academy of Sciences 113, no. 42 (2016): 11703–8. http://dx.doi.org/10.1073/pnas.1605271113.

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Despite the increasing popularity of 3D printing, also known as additive manufacturing (AM), the technique has not developed beyond the realm of rapid prototyping. This confinement of the field can be attributed to the inherent flaws of layer-by-layer printing and, in particular, anisotropic mechanical properties that depend on print direction, visible by the staircasing surface finish effect. Continuous liquid interface production (CLIP) is an alternative approach to AM that capitalizes on the fundamental principle of oxygen-inhibited photopolymerization to generate a continual liquid interfa

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Bartkowska, Aneta, Dariusz Bartkowski, Damian Przestacki, Mateusz Kukliński, Andrzej Miklaszewski, and Piotr Kieruj. "Laser Processing of Diffusion Boronized Layer Produced on Monel® Alloy 400—Microstructure, Microhardness, Corrosion and Wear Resistance Tests." Materials 14, no. 24 (2021): 7529. http://dx.doi.org/10.3390/ma14247529.

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The paper presents the results of studies of microstructure, mechanical and physicochemical properties of surface layers produced by laser modification of the diffusion boron layer on Monel® Alloy 400. The diffusion boron layers were produced at 950 °C for 6 h. The gas-contact method was used in an open retort furnace. The process was carried out in a powder mixture containing B4C carbide as a boron source. The next stage was the modification of the boron layer with a diode laser beam of a nominal power of 3 kW. A constant power of 1400 W of the laser beam was used. The scanning speed was vari

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42

Karakchieva, N. I., T. V. Dement, and I. A. Kurzina. "PRODUCTION AND STUDY OF RADIATION-RESISTANT COMPOSITE MATERIAL BASED ON V-TI-CR AND FERRITE STEEL 17CR-12NI-FE." Materials Science, no. 10 (2022): 9–20. http://dx.doi.org/10.31044/1684-579x-2022-0-10-9-20.

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The study results of specimens of a three-layer material «ferrite steel 17Cr-12Ni-Fe / vanadium alloy / ferrite steel 17Cr-12Ni-Fe» obtained by laser growth are presented. The structural-phase state, strength properties of the vanadium alloy and three-layer alloy in the initial state, after heat treatment at 1700 °С, and also after irradiation have been investigated. The interaction zone of the vanadium alloy and steel wasstudied in detail.

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Stoianovici, Doru, and Timur Chis. "WELL PRODUCTION WITH CASING SAND BRIDGE." Romanian Journal of Petroleum & Gas Technology 4 (75), no. 1 (2023): 97–108. http://dx.doi.org/10.51865/jpgt.2023.01.09.

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"Many reservoirs comprised of relatively young sediments are so poorly consolidated that sand will be produced along with the reservoir fluids unless the rate is restricted significantly. The mathematical modelling of the flow of the sanded well uses the continuity equation written in cylindrical coordinates, Darcy's law admitting its availability and the solutions of these equations obtained for the boundary conditions in the case of a crude oil well that produces sand floods. In this article we have created a numerical model based on the variation of fluid flow from the productive layer, dep

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J, Monica, and Divyasankari G. "Experimental Study on Green Concrete using Graphene." International Journal of Innovative Research in Advanced Engineering 10, no. 07 (2023): 486–89. http://dx.doi.org/10.26562/ijirae.2023.v1007.07.

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The paper considers methods for concrete modification using low-layer graphene and grapheme oxide. It was found that graphene oxide and low-layer graphene obtained by liquid-phase shear exfoliation significantly increase the strength of concrete. In our opinion, low-layer graphene has better prospects since it is cheaper and its production technology is environmentally friendly. The viability and future of graphene largely depends on the availability of such a method that allows mass production of high-quality graphene at an affordable price. In this regard, liquid- phase separation of graphit

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Tu, Xingping, Bin Liu, Duo Jia, Liujie Li, Jiawei Yin, and Yuan Lv. "Calculation Method for Bottomhole Flow Pressure in Co-layer Development of Multilayer Sandstone Reservoir." Journal of Physics: Conference Series 2834, no. 1 (2024): 012157. http://dx.doi.org/10.1088/1742-6596/2834/1/012157.

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Abstract Accurately calculating the bottom hole flow pressure of a multi-layer stacked sandstone reservoir (hereinafter referred to as a multi-layer reservoir) is the basis for production splitting, oil well dynamic analysis, and reasonable work system determination in the development of multi-layer reservoirs. The bottomhole flow pressure model for single-layer oil reservoirs does not consider interlayer interference and the pressure drop caused by fluid flow in the wellbore, which doesn’t comply with the characteristics of multi-layer combined production, and the use of the maximum bottomhol

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Galvão, R. A., G. M. M. Silva, N. C. Ferreira Coêlho, L. A. Santa-Cruz, and G. Machado. "Hydrogen production by the layer-by-layer assembled films of PAni-TiO2-AuNPs." Materials Today Chemistry 26 (December 2022): 101072. http://dx.doi.org/10.1016/j.mtchem.2022.101072.

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Krogman, K. C., R. E. Cohen, P. T. Hammond, M. F. Rubner, and B. N. Wang. "Industrial-scale spray layer-by-layer assembly for production of biomimetic photonic systems." Bioinspiration & Biomimetics 8, no. 4 (2013): 045005. http://dx.doi.org/10.1088/1748-3182/8/4/045005.

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Malbakhova, Inna A., Artem S. Bagishev, Alexander M. Vorobyev, Tatyana A. Borisenko, Artem S. Ulihin, and Alexander I. Titkov. "Fabrication of supporting electrolytes based on samarium doped cerium oxide by hybrid inkjet printing." Electrochemical Energetics 24, no. 4 (2024): 221–26. https://doi.org/10.18500/1608-4039-2024-24-4-221-226.

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In this work, the supporting electrolytes for solid oxide fuel cells based on samarium doped cerium oxide Ce0.8Sm0.2O1.95 were fabricated using 3D inkjet printing and layer-by-layer laser treatment followed by thermal sintering. The samples were characterized by scanning electron microscopy, X-ray diffraction analysis and impedance spectroscopy. The Vickers hardness test and three-point bending flexural test were carried out. The developed approach allows for precise control of the layer thickness and microstructure, significantly facilitating the scaling of solid oxide fuel cells production,

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Badziak, J., S. Głowacz, S. Jabłoński, et al. "Production of ultrahigh ion current densities at skin-layer subrelativistic laser–plasma interaction." Plasma Physics and Controlled Fusion 46, no. 12B (2004): B541—B555. http://dx.doi.org/10.1088/0741-3335/46/12b/044.

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Popov, Vladimir, Alexander Katz-Demyanetz, and Menachem Bamberger. "Heat Transfer and Phase Formation through EBM 3D-Printing of Ti-6Al-4V Cylindrical Parts." Defect and Diffusion Forum 383 (February 2018): 190–95. http://dx.doi.org/10.4028/www.scientific.net/ddf.383.190.

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3D-printing or additive manufacturing (AM) is a group of novel intensively developed production processes, through which a "printed" object is fabricated layer-by-layer in a desired intricate geometrical shape with following joining it into a monolithic bulk by means of electron beam (EB) or laser beam (LB) melting. The present study is concentrated on the production of simple-shaped (cylindrical) Ti-6Al-4V alloy samples by Electron Beam Melting (EBM). During the rapid cooling of as-printed material's layer, martensitic structure is formed while suppressing of material's diffusivity. Effect of

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