Academic literature on the topic 'Melting of oxygen-free copper'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Melting of oxygen-free copper.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Melting of oxygen-free copper"

1

S. Kazem, Murtadha, and Isam M. Abdulbaqi. "DESIGN OF INDUCTION COIL FOR OXYGEN FREE COPPER PRODUCTION." Journal of Engineering and Sustainable Development 25, no. 4 (2021): 51–57. http://dx.doi.org/10.31272/jeasd.25.4.5.

Full text
Abstract:
This paper deals with the design of an induction coil (IC) intended to be used for an oxygen free copper production. This coil differs in design because it should be placed in a vacuum or in a chamber filled with noble gas, such as Argon. The designed coil must be suitable for melting the copper in this environment. The coil design means, using the simulation of the melting process to determine the best, coil geometry, type of crucible, the required current, frequency, the consumed power, and time required for this process. These results will be used to determine the parameters of the inductio
APA, Harvard, Vancouver, ISO, and other styles
2

Guo, Ming En, Yun Xu Shi, and Yu Chen Guo. "Research on Oxygen Content and Crack Control of Oxygen-Free Copper Billet in Horizontal Continuous Casting Process." Advanced Materials Research 569 (September 2012): 264–67. http://dx.doi.org/10.4028/www.scientific.net/amr.569.264.

Full text
Abstract:
In this paper, research on reducing oxygen content and crack in oxygen-free copper strip during horizontal continuous casting process has been taken. First, reform the original copper alloy smelting-holding-casting three stages process. Through developing melting and holding integrative furnace, combine melting process and holding process for one, reforming smelting holding-casting two stages process. Second, pick up and realize on-off valve technics on controlling flow or stop of undercurrents copper liquid. Third, analyze the cracks in oxygen-free copper billet with flakinessratio 6500/20mm.
APA, Harvard, Vancouver, ISO, and other styles
3

Lee, Jung Il, Joo Ho Lee, Seung Hwan Park, et al. "Design of Manufacturing Process of Oxygen-Free High Conductivity Copper Using Mahalanobis-Distance Outlier Detection Method." Materials Science Forum 544-545 (May 2007): 965–68. http://dx.doi.org/10.4028/www.scientific.net/msf.544-545.965.

Full text
Abstract:
The proper control of total impurities and oxygen contents of oxygen-free high conductivity (OFHC) copper prepared by vacuum high-frequency melting technique was studied using Mahalanobis-Distance (MD) outlier detection method as functions of raw material purities, vacuum pressure, melting temperature and holding time. The properties of vacuum-melted OFHC copper was examined by thermo-gravimetric analysis, differential scanning calorimetry, hardness test, macro and optical microstructure analyses and ultimate tensile test. In multivariate systems, the existence of outlier makes it difficult to
APA, Harvard, Vancouver, ISO, and other styles
4

Lei, H. "Melting of free copper clusters." Journal of Physics: Condensed Matter 13, no. 13 (2001): 3023–30. http://dx.doi.org/10.1088/0953-8984/13/13/315.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Stefanova, V., K. Vutova, and V. Vassileva. "Thermodynamic analysis of the processes during electron beam melting and refining of copper." Journal of Physics: Conference Series 2240, no. 1 (2022): 012034. http://dx.doi.org/10.1088/1742-6596/2240/1/012034.

Full text
Abstract:
Abstract In the paper, results are presented and discussed obtained by thermodynamic analysis of the refining processes of copper aimed at removing metal impurities and oxygen via electron beam melting (EBM) in vacuum. Thermodynamic evaluations of the possible chemical interactions between the base metal (Cu) and the metal impurities present in Cu that can proceed during the refining of copper are made based on the calculated values of the Gibbs free energy and equilibrium constants taking into account the physical state of copper and of the metal impurities during EBM.
APA, Harvard, Vancouver, ISO, and other styles
6

Guo, Junli, Jin Zou, Huihui Yu, Kai Hu, and Qiang Hu. "Effect of FetO on viscosity and structure of Na2O3-B2O3-CaO-SiO2-Al2O3 slag." Metallurgical Research & Technology 121, no. 6 (2024): 622. http://dx.doi.org/10.1051/metal/2024095.

Full text
Abstract:
The effects of FetO on the characteristic melting temperature, viscosity, and structure of Na2O3-B2O3-CaO-SiO2-Al2O3 slag were investigated. Understanding the viscous behavior and structure of borate slag containing FetO can guide the design of mold powders for copper alloy casting. The melting temperature (Th) suddenly increased and exceeded 800 °C when the FetO content increased from 15 to 23 wt%. The viscosity changed significantly with increasing FetO content when the temperature was below 1050 °C. The slag structure exhibited a boron–iron anomaly. The viscosity of the Na2O3-B2O3-CaO-SiO2-
APA, Harvard, Vancouver, ISO, and other styles
7

李, 永弟. "Research on High Purity Oxygen Free Copper by Vacuum Melting and Downward Continuous Casting Process." Material Sciences 14, no. 09 (2024): 1328–34. http://dx.doi.org/10.12677/ms.2024.149147.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

De Lucia, M. "Oxygen Enrichment in Combustion Processes: Comparative Experimental Results From Several Application Fields." Journal of Energy Resources Technology 113, no. 2 (1991): 122–26. http://dx.doi.org/10.1115/1.2905785.

Full text
Abstract:
The effects of using oxygen to partially or wholly replace fuel air in small-size melting furnaces were studied over a range of application fields. Following definition of the useful parameters, testing was conducted on furnaces for melting glass, ferrous metals (pigiron), nonferrous metals (copper alloys), and ceramic materials. In all cases, oxygen-enrichment was found to provide significant energy savings, as well as notable advantages in terms of both plant output and energy consumption.
APA, Harvard, Vancouver, ISO, and other styles
9

Tsao, Lung-Chuan, Cheng-Kai Li, Yu-Kai Sun, Shih-Ying Chang, and Tung-Han Chuang. "Fluxless Direct Soldering of Transparent Conductive Oxides (TCOs) to Copper." Advances in Materials Science and Engineering 2021 (November 15, 2021): 1–7. http://dx.doi.org/10.1155/2021/8069719.

Full text
Abstract:
Due to the combined advantages of low cost, good soldering properties, and appropriate melting temperature range, novel Sn8Zn3Bi1Mg active solder was developed for direct soldering of transparent conductive oxide (TCO) ceramic targets with oxygen-free copper at 200°C in air. The TCO specimens have aluminum-doped zinc oxide (AZO) and zinc oxide (ZnO) ceramics. The direct soldering process was performed without the need for flux or pre-metallization of the two transparent conductive oxides. The microstructure, phase constitution, melting characteristics, and soldering properties of the Sn8Zn3Bi1
APA, Harvard, Vancouver, ISO, and other styles
10

Ledford, Christopher, Christopher Rock, Paul Carriere, Pedro Frigola, Diana Gamzina, and Timothy Horn. "Characteristics and Processing of Hydrogen-Treated Copper Powders for EB-PBF Additive Manufacturing." Applied Sciences 9, no. 19 (2019): 3993. http://dx.doi.org/10.3390/app9193993.

Full text
Abstract:
The fabrication of high purity copper using additive manufacturing has proven difficult because of oxidation of the powder feedstock. Here, we present work on the hydrogen heat treatment of copper powders for electron beam powder bed fusion (EB-PBF), in order to enable the fabrication of high purity copper components for applications such as accelerator components and vacuum electronic devices. Copper powder with varying initial oxygen contents were hydrogen heat-treated and characterized for their chemistry, morphology, and microstructure. Higher initial oxygen content powders were found to n
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Melting of oxygen-free copper"

1

Білянін, Роман Володимирович. "Тепловий контроль технічного стану індукційних установок для виробництва мідної катанки". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/41338.

Full text
Abstract:
Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.11.13 – прилади і методи контролю та визначення складу речовин. – Національний технічний університет "Харківський політехнічний інститут", м. Харків, 2019 р. У дисертації вирішено важливе наукове завдання розвитку методів теплового контролю технічного стану індукційних установок виробництва високоякісної мідної катанки на основі використання математичного моделювання електротеплових процесів, аналізу розподілу температури в багатошаровій термоізоляції установок з урахуванням її деградації та розподілу темпер
APA, Harvard, Vancouver, ISO, and other styles
2

Білянін, Роман Володимирович. "Тепловий контроль технічного стану індукційних установок для виробництва мідної катанки". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/41340.

Full text
Abstract:
Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.11.13 – прилади і методи контролю та визначення складу речовин. – Національний технічний університет "Харківський політехнічний інститут", м. Харків, 2019 р. У дисертації вирішено важливе наукове завдання розвитку методів теплового контролю технічного стану індукційних установок виробництва високоякісної мідної катанки на основі використання математичного моделювання електротеплових процесів, аналізу розподілу температури в багатошаровій термоізоляції установок з урахуванням її деградації та розподілу темпе
APA, Harvard, Vancouver, ISO, and other styles
3

Alawadhi, Meshal Y. "Microstructural evolution and mechanical properties of oxygen-free copper processed by severe plastic deformation." Thesis, University of Southampton, 2017. https://eprints.soton.ac.uk/415750/.

Full text
Abstract:
This thesis presents a study on the microstructural evolution and mechanical properties of oxygen-free copper processed by equal-channel angular pressing (ECAP) and high-pressure torsion (HPT) at room temperature. Experiments were systematically conducted to examine microstructural stability and deformation mechanisms, and their influence on the mechanical properties. A significant grain refinement was attained after deforming the material by 24 passes of ECAP and 10 turns of HPT. The microstructure in the steady-state condition consisted of equiaxed ultrafine grains (UFGs) with high-angles of
APA, Harvard, Vancouver, ISO, and other styles
4

Liggett, Jennifer. "Microelectrode Investigation of Iron and Copper Surfaces Exposed to Free Chlorine Under Relevant Drinking Water Chemistries." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439562284.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Ching-HuiHuang and 黃景暉. "The Characteristic Study of Laser Welding on Oxygen-free Copper Sheet." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/50623026818190786862.

Full text
Abstract:
碩士<br>國立成功大學<br>機械工程學系碩博士班<br>101<br>This study investigated the laser weldability and welding process window of three different copper sheets: the oxygen-free copper (OFC), OFC coated with nickel or OFC coated with tin, on the SPCC (thickness 0.2mm) where Lap-Joint welding by laser were performed. The mechanical properties test and microstructure analysis of the welding joint were used to examine the degree of conductivity, strength and microstructure characteristics in different materials and parameters. The welding ability of corrosion resistance at general environmental was analyzed by ele
APA, Harvard, Vancouver, ISO, and other styles
6

Chang, He-Chieh, and 張賀傑. "Mechanical Properties of Oxygen-Free Copper Wire the Fine Wire Drawing." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/99916320895419538143.

Full text
Abstract:
碩士<br>國立宜蘭大學<br>機械與機電工程學系<br>101<br>The study for mechanical properties and plastic behavior when OFC(Oxygen-Free Copper) wire be go through different size of diamond dies,than record it what effect on skin pass. The original size of OFC isφ1.0mm, passing through 13 pass to 0.1mm.Than it,which after annealed at 350℃,be passed through 10 pass to φ0.03mm.In accordance with CNS2112,the original gauge length of tensile specimen is 9A. In accordance with CNS2111,the Electrical Material Testing Machine be set up for adding load should be linearly.In accordance with CNS9504, by Optical Microscopy
APA, Harvard, Vancouver, ISO, and other styles
7

Lin, Zong-Xian, and 林宗憲. "The Study of the Optimum Dies Used for Fine Wire Drawing for the Oxygen-Free Copper Wire." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/q3a82z.

Full text
Abstract:
碩士<br>國立宜蘭大學<br>機械與機電工程學系碩士班<br>103<br>The production of fine metal wire is usually used drawing process. The drawing process mean metal wire be drawing for multi-pass dies , to achieve the desired diameter of the wire. This paper use the finite element analysis with commercial package of LS-DYNA to investigate oxygen –free copper wire.To simulate drawing process of matel wire.The drawing load of simulate contrast with experiment.The max reduction of area were attained,and recorded the drawing load.In the study‚which find the max reduction of area is 15% between ψ30μm toψ17μm‚and 14%betweenψ16
APA, Harvard, Vancouver, ISO, and other styles
8

Tsai, Ming-Hua, and 蔡明樺. "Study on the Semi-solid Temperature of Ternary Hypoeutectic Filler Metal for Vacuum Brazing of Oxygen-free Copper." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/45178657584977454533.

Full text
Abstract:
碩士<br>大葉大學<br>機械與自動化工程學系<br>101<br>Oxygen-free copper is one of the major structural materials of electric motors. With the bonding temperature of copper rotor being too high, the recrystallization of electric steels will lead to increased iron loss and reduced energy conversion efficiency. Therefore, in this study the low temperature semi-solid vacuum brazing technology has been adopted to accomplish a precise bonding between oxygen-free copper while maintaining high energy conversion efficiency. In this experiment the Cu-15Ag-5P is adopted as the filter metal, with the test conditions of liq
APA, Harvard, Vancouver, ISO, and other styles
9

Huang, Chung-Hao, and 黃仲豪. "Research on the Development of a Meso-scale 3-axis Milling Machine and the Optimal Micro-milling Parameters for the Oxygen Free Copper." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/j753w4.

Full text
Abstract:
碩士<br>國立臺灣科技大學<br>機械工程系<br>100<br>There are two main parts in this study. First, the development of a meso-scale 3-axis milling machine has been introduced. Second, the optimal micro-milling parameters have been determined for cutting the oxygen free copper using a high speed spindle. The developed micro 3-axis milling machine system is constructed with a XY coplanar stage and a Z-axis high-speed spindle clamping mechanism mounted on a pagoda structure. The XY coplanar stage and Z-axis structural were guided by a linear guideways. The developed machine tool was driven by the LNC-M600 CNC contr
APA, Harvard, Vancouver, ISO, and other styles
10

TSAI, CHIN MING, and 蔡誌銘. "Development of a A-C Rotary Table for a Meso-scale 5-axis Machine Tool and the Optimal Micro-milling Parameters for the Oxygen Free Copper." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/02405461169330510223.

Full text
Abstract:
碩士<br>國立臺灣科技大學<br>機械工程系<br>101<br>This study presents the development of A-C rotary table for a Meso-scale 5-axis milling machine and the determination of the optimal micro-milling parameters. The whole five-axis Meso-scale milling machine feeding mechanism is constructed from three structures which are X Y coplanar stage, a Z-axis mechanism and A-C rotating table. With regard to the determination of the optimal micro-milling parameters, the quality characteristicis the minimum surface roughness of the milled surface.The surface is finished by a micro mill with diameter of 0.1 mm. The Taguchi’
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Melting of oxygen-free copper"

1

Wang, Yannan, Shuigen Huang, Bart Blanpain, and Muxing Guo. "Melting and Solidification Behaviors of the Copper Slags with Different CaO Content at Various Oxygen Partial Pressures." In The Minerals, Metals & Materials Series. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-22576-5_13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Spittel, Marlene, and Thilo Spittel. "Flow stress, mechanical and physical properties of oxygen-free electronic copper (Cu-OFE)." In Part 3: Non-ferrous Alloys - Heavy Metals. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-642-14174-4_6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Fickett, F. R., and T. E. Capobianco. "Relationships between Mechanical and Magnetoelectric Properties of Oxygen-Free Copper at 4 K." In Advances in Cryogenic Engineering Materials. Springer US, 1986. http://dx.doi.org/10.1007/978-1-4613-9871-4_51.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Wang, Lu, Xi Lan, Zhe Wang, and Zhancheng Guo. "Effect of Super-Gravity Field on the Purification and Solidification Structure of Oxygen-Free Copper (OFC)." In The Minerals, Metals & Materials Series. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-50184-5_21.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Lee, Jung Il, Joo Ho Lee, Seung Hwan Park, et al. "Design of Manufacturing Process of Oxygen-Free High Conductivity Copper Using Mahalanobis-Distance Outlier Detection Method." In Materials Science Forum. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-431-6.965.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Tahiroglu, Veysel. "The Role of Antioxidants in the Treatment of Alzheimer’s Disease." In Natural Antioxidants and in Vitro Antioxidant Assays. Nobel Tip Kitabevleri, 2024. http://dx.doi.org/10.69860/nobel.9786053359333.9.

Full text
Abstract:
Alzheimer disease is a chronic, progressive neurodegenerative disease characterized by cognitive impairment. It is the most common form of dementia in the elderly population and its impact is increasing worldwide. More than 47 million people worldwide are thought to be affected by Alzheimer disease. Age is the leading risk factor, and research has shown that people over 60 are more likely to develop Alzheimer. Oxidation events constantly occur in living metabolism, and reactive oxygen substances taken from outside accelerate these oxidation events. Cell damage that may occur as a result of the
APA, Harvard, Vancouver, ISO, and other styles
7

"Introduction." In Introduction to Glass Science and Technology, 3rd ed. The Royal Society of Chemistry, 2020. http://dx.doi.org/10.1039/bk9781839161414-00001.

Full text
Abstract:
The presence of glasses in our everyday environment is so common that we rarely notice their existence. Humans have been producing glasses by melting of raw materials for thousands of years. The first crude man-made glasses were used to produce beads, or to shape into tools requiring sharp edges. Eventually, methods for production of controlled shapes were developed. The advent of the age of technology created many new opportunities for the application of glasses. Recently, the development of glass optical fibers has revolutionized the telecommunications industry, with fibers replacing copper
APA, Harvard, Vancouver, ISO, and other styles
8

"Hydrogen-Induced Cracking of Oxygen-Free Phosphorus-Doped Copper." In International Hydrogen Conference (IHC 2012). ASME Press, 2014. http://dx.doi.org/10.1115/1.860298_ch48.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

ENDO, Hiroki, Harumitsu SENDA, Shoichi YASUBA, and Etsuo MARUI. "Ultra-Precision Machining of Oxygen-Free Copper and Aluminium." In International Progress in Precision Engineering. Elsevier, 1993. http://dx.doi.org/10.1016/b978-0-7506-9484-1.50092-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Suzuki, Keiiciiiro. "Cell culture model for oxidative stress." In Experimental protocols for reactive oxygen and nitrogen species. Oxford University PressOxford, 2000. http://dx.doi.org/10.1093/oso/9780198506683.003.0081.

Full text
Abstract:
Abstract Cells in culture are widely used as experimental models to study pro-oxidant and antioxidant responses. Although the conditions used are usually simple, and the results are obtained easily and rapidly, proteins, e.g. foetal calf serum, can act as radical scavengers, and iron and copper salts can also contaminate culture media during free-radical experiments. Appropriate controls must therefore be included and conditions carefully standardized, for example by using foetal calf serum (FCS)-free media.
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Melting of oxygen-free copper"

1

Francis, Roger, and Stan Hebdon. "The Selection of Stainless Steels for Seawater Pumps." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-05446.

Full text
Abstract:
Abstract Traditionally copper alloys, such as gunmetals and nickel aluminium bronzes, have been used for seawater cooling and firewater pumps. The drawbacks to these copper alloys are their susceptibility to erosion corrosion at high water velocities and to pitting in polluted waters containing sulphides. Austenitic cast iron pump cases have suffered from SCC (stress corrosion cracking) problems after 1 to 6 years in warm seawater. However, with the development of AOD (argon oxygen decarburization) melting and the use of nitrogen as an alloying element, cast stainless steels offered a viable a
APA, Harvard, Vancouver, ISO, and other styles
2

Wang, Cong, Bofeng Wang, Hongqi Zhang, et al. "Performance Analysis of Molybdenum and Oxygen-free Copper Vacuum Brazed Joints." In 2024 Joint International Vacuum Electronics Conference and International Vacuum Electron Sources Conference (IVEC + IVESC). IEEE, 2024. http://dx.doi.org/10.1109/ivecivesc60838.2024.10694904.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Reed, D. T. "Corrosion of Copper-Based Materials in Gamma-Irradiated Air/Water Vapor Systems." In CORROSION 1992. NACE International, 1992. https://doi.org/10.5006/c1992-92474.

Full text
Abstract:
Abstract Experiments were performed to investigate the atmospheric corrosion of copper-based materials in an irradiated air/water vapor system. The three materials investigated were oxygen-free copper (CDA-102), 7% aluminum-bronze (CDD-613), and 70-30 cupronickel (CDA-715). To support the corrosion studies, a number of irradiation studies were performed to characterize the gas phase radiation chemistry of the system. Both copper oxide and nitrate phases were identified as corrosion products depending on the dose rate, humidity and temperature. Uniform corrosion rates increased with temperature
APA, Harvard, Vancouver, ISO, and other styles
4

Haeberle, Tim, and Jerry Maldonado. "Laboratory Evaluation of the Corrosion Behavior of Copper-Based Alloys in Simulated Oil and Gas Production Environments." In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04106.

Full text
Abstract:
Abstract NACE Standard MR0175-2003 permits the use of all copper alloys without any restrictions, but cautions that “Copper-based alloys may undergo accelerated mass-loss corrosion in sour oilfield environments, particularly if oxygen is present”. In order to better understand the environmental limitations of four copper-based alloys laboratory immersion tests were performed in a highly corrosive sour environment and stress cracking tests were performed in accordance with NACE TM0177. Aluminum-bronze alloy (UNS C63000), aluminum-bronze alloy (UNS C62730), beryllium-copper alloy (UNS C17200), a
APA, Harvard, Vancouver, ISO, and other styles
5

Sridhar, N., and G. A. Cragnolino. "The Effect of Environment on Localized Corrosion of Copper Based High-Level Waste Container Materials." In CORROSION 1992. NACE International, 1992. https://doi.org/10.5006/c1992-92121.

Full text
Abstract:
Abstract The effects of environmental factors on localized corrosion of copper-based materials, which are candidates for use in high-level nuclear waste containers, were examined. The environmental factors examined were those present in the ground water near the proposed Yucca Mountain site for a high-level waste repository: bicarbonate, chloride, and sulfate. Localized corrosion was observed only at low temperatures in environments involving combinations of high bicarbonate with high chloride or high sulfate. Uniform corrosion was observed at low concentrations of bicarbonate, below about 200
APA, Harvard, Vancouver, ISO, and other styles
6

Ochoa, Maité, Silvia B. Farina, and Martín A. Rodríguez. "Crevice Corrosion of Copper as an Engineering Barrier of High-Level Radioactive Waste Containers." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09162.

Full text
Abstract:
Abstract This work is aimed at determining the viability of oxygen-free copper as an engineering barrier of high-level radioactive waste containers. This material stands out because of its excellent resistance to generalized and localized corrosion in aqueous electrolytes; particularly in reducing environments as the ones expected in repository sites located below the water table. As the first part of a more general analysis, the corrosive effects of different ions potentially in contact with the barrier were studied. Eight systems with different concentrations of chloride, sulfate and bicarbo
APA, Harvard, Vancouver, ISO, and other styles
7

French, David N. "Circumferential Cracking and Thermal Fatigue in Fossil Fired Boilers." In CORROSION 1988. NACE International, 1988. https://doi.org/10.5006/c1988-88133.

Full text
Abstract:
Abstract Fossil fuels contain both hydrogen and carbon, and most contain measurable amounts of sulfur. When burned with less oxygen than required for complete combustion, conditions are said to be "off-stoichiometric" or "reducing." Some of the sulfur may then be hydrogen sulfide. When reducing conditions exist along a furnace wall, the normal protective iron-oxide scale will be replaced in part by a porous, non-protective sulfide scale. Corrosion deposits contain a low-melting-temperature species, sulfides (as determined by sulfur prints), and free carbon. The characteristics of reducing-cond
APA, Harvard, Vancouver, ISO, and other styles
8

Anantatmula, R. P., and R. P. Colburn. "Irradiation Corrosion of Waste Package Container Materials in Air/Steam Environment." In CORROSION 1992. NACE International, 1992. https://doi.org/10.5006/c1992-92072.

Full text
Abstract:
Abstract A set of corrosion tests of the candidate waste container materials for the Basalt Waste Isolation Project (BWIP) was conducted in a moist air environment simulating the repository preclosure condition. The tests were performed over a four-month period with air, saturated with moisture at 50°C, passing through test chambers holding specimens at 150°C and 250°C. The test materials included A27 cast carbon steel, A387 ferritic steel, oxygen-free copper and cupronickel 90-10. Each material was tested both with and without basalt/bentonite packing material adjacent to the specimens. For e
APA, Harvard, Vancouver, ISO, and other styles
9

Yokota, Hiroki, and Daisuke Kawai. "Properties of Laser Melted MCrAlY Coatings on Cu Alloy Substrates." In ITSC2019, edited by F. Azarmi, K. Balani, H. Koivuluoto, et al. ASM International, 2019. http://dx.doi.org/10.31399/asm.cp.itsc2019p0750.

Full text
Abstract:
Abstract This study assesses the effect of laser melting on MCrAlY-coated copper substrates. CoNiCrAlY, NiCoCrAlY, and NiCrAlY powders were applied to copper alloy substrates by atmospheric plasma and HVOF spraying. Sample surfaces were then laser melted and coating properties were determined and correlated with coating composition, surface morphology, and cross-sectional microstructure. Laser melting not only caused the coatings to fuse to the substrate, but also precipitated the formation of an aluminum oxide surface layer that reduced the oxygen content in the coating. As a result of this f
APA, Harvard, Vancouver, ISO, and other styles
10

Andrews, Stephen A., and Brandon M. Wilson. "Variational Bayesian Calibration of a PTW Material Strength Model for OFHC Copper." In ASME 2023 Verification, Validation, and Uncertainty Quantification Symposium. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/vvuq2023-108829.

Full text
Abstract:
Abstract The strength of materials at high strain rates is a challenging problem for model development and calibration. Such models can span a regime in strain rate from 1 × 10−3 s−1 to 1 × 1012 s−1 and a regime in temperature of 0K to up to the material’s melting temperature. The limits of these regimes can be difficult and expensive to access experimentally. There is interest in understanding how well calibrations made at moderate strain rates and temperature can perform when applied to more extreme regimes. Variational Bayesian techniques have been shown to be computationally inexpensive me
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Melting of oxygen-free copper"

1

Pritzkau, David P. Experimental Study of RF Pulsed Heating on Oxygen Free Electronic Copper. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/812622.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Jones, Thomas, Richard Strachan, David Mackie, Mervyn Cooper, Brian Frame, and Jan Vorstius. Phase Field & Monte Carlo Potts Simulation of Grain Growth and Morphology of Vertically Upwards Cast Oxygen Free Copper. University of Dundee, 2021. http://dx.doi.org/10.20933/100001287.

Full text
Abstract:
A 2-D Phase-Field coupled Monte Carlo-Potts model, using PhasePot of vertically upwards continuous casting (VUCC) of oxygen free copper (OFCu) was investigated to reveal the grain growth morphology and the withdrawal parameters required to produce a high-quality homogeneity within the grain structure. A dynamic moving reference frame was used as an approximation to the complex withdrawal parameters. The simulation results were validated alongside cast rod grain structures produced under the same cast parameters, at Rautomead Ltd on a RS080 VUCC machine.
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!