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2020121 · The divertor is designed as full-tungsten (W) armored components in ITER . Erosion of the divertor wall will be caused by transient events, such as disruptions and
contactTungsten (W) is a prime candidate for use in plasma-facing components in fusion reactors. These components are subjected to high temperatures and displacement damages
contactDownload scientific diagram | Cross-shaped design for tungsten where w is width, h is height and l is length and θ represents the incident angle of source. from publication: Tungsten
contact202128 · Tungsten，IUPAC Tungsten。1998Principles of Chemical Nomenclature，Wolfram
contactW2C), fine-grain tungsten strengthened by Zr carbides (W-0.5% ZrC), W alloyed with 10 at.% chromium and 0.5 at.% yttrium (W-10Cr-0.5Y) and technologically pure W plate
contacttungsten (W), also called wolfram, chemical element, an exceptionally strong refractory metal of Group 6 (VIb) of the periodic table, used in steels to increase hardness and strength and in lamp filaments. Tungsten metal
contact201811 · 1. Introduction. Tungsten (W) is a promising refractory material for fusion nuclear application, for its high resistance against sputtering and low tritium retention [1].To apply W as structural material in current divertor design for demonstration reactor (DEMO), a joint to the frame structural materials ferritic–martensitic high chromium steels is urgently
contact2022210 · WEST is an MA class superconducting, actively cooled, full tungsten (W) tokamak, designed to operate in long pulses up to 1000 s. In support of ITER operation and DEMO conceptual activities, key missions of WEST are: (i) qualification of high heat flux plasma-facing components in integrating both technological and physics aspects in
contact202222 · Tungsten (W) as a structural component has grown roots in many special applications owing to its radiation-shielding capabilities and its properties at elevated temperatures. The high ductile-brittle transition temperature (DBTT) and the very high melting point of tungsten however have limited its processability to certain technologies
contact202147 · Neutron irradiation induced void formation is the main damage process in W. The presence of voids was reported in every specimen irradiated at temperatures exceeding 500°C 35, 42. The formation ...
contact2022519 · The purpose of this study is to optimize the W-diamond target and predict its performance in multi-pixel X-ray sources. Methods. X-ray intensity and energy deposition in the W-diamond target with different thicknesses of tungsten film and incident electron energies was calculated with the Geant4 Monte Carlo toolkit.
contact2002121 · Tungsten (W) - Properties, Applications. Tungsten, also known as Wolfram, lapis ponderosus or Heavy Stone, has highest melting point of all elements except carbon - sources in scientific literature vary between 3387 °C and 3422 °C. It also has also excellent high temperature mechanical properties and the lowest expansion coefficient of
contact2017919 · One mock-up withstood successfully 302 cycles of 20 MW m−2, which are far beyond the design requirement. Since 2014, W/Cu flat-type PFCs were wildly used in EAST upper divertor as baffle and dome components which showed excellent performance in 2015 and 2016 campaigns. Given the success in EAST upper divertor, W/Cu flat-type
contactTungsten (W) is a gray-white metallic element that is stable and is very resistant to acids and bases. Tungsten has the highest melting temperature of any metal (3422 ° C or 6192 ° F), and the second highest of all
contact201851 · 1. Introduction. Tungsten (W) is one of the most attractive materials for use as the divertor in fusion reactor systems. The divertor in ITER is considered to be exposed to a high heat load, and the temperature of its surface reaches 2000 °C [1], at which the progress of recrystallization of W is expected [2].Although hot-rolled W materials have
contact2022519 · The purpose of this study is to optimize the W-diamond target and predict its performance in multi-pixel X-ray sources. Methods. X-ray intensity and energy deposition in the W-diamond target with different thicknesses of tungsten film and incident electron energies was calculated with the Geant4 Monte Carlo toolkit.
contact2021212 · In this research work, the variation in the mechanical and thermal behavior of tungsten (W)-reinforced epoxy resin (EPR) composites by varying the tungsten particulate content has been investigated. The composites were fabricated by manual mixing and specimens containing tungsten particles varying in proportion of 1, 3, 5, 7, and 9 wt. %
contact20151229 · The EAST tungsten divertor was designed as modular structure with a total of 80 modules. Each module occupies 4.5° with 1 mm gap between adjacent ones. The plasma facing surfaces of all modules form an 80-edge polygon. The divertor module is supported by an inner rail, an outer rail and a middle support [ 1, 2 ].
contact2021914 · The W layer was produced on surrogate kernel particles (ZrO 2) with a diameter of approximately 500 μm by spouted-bed CVD.Figure 1 presents a schematic diagram of the preparation of the cermet fuel particles. The W layer was deposited using tungsten chloride (WCl 6, purity 99.99 wt.%) as the starting material and H 2 as the
contact2018314 · The origin of the word is assumed to be derived from the German words "wolf, meaning beast of prey, and "rham", meaning froth. "It eats up tin as a wolf eats up sheep". The writers of the period before 1781 had vague ideas as to the composition of the mineral that they had named. Tin miners called the mineral "mock-lead", an ore
contact20211124 · A new lower tungsten divertor has been developed and installed in the EAST superconducting tokamak to replace the previous graphite divertor with power handling capability increasing from <2 MW m −2 to ∼10 MW m −2, aiming at achieving long-pulse H-mode operations in a full metal wall environment with the steady-state divertor
contact20201113 · Tungsten is a chemical element with atomic number 74 which means there are 74 protons and 74 electrons in the atomic structure. The chemical symbol for Tungsten is W. Tungsten is a rare metal found naturally on Earth almost exclusively in chemical compounds. Tungsten is an intrinsically brittle and hard material, making it
contact2020519 · Figure 2 shows representative deformation twins in Bcc (tungsten-W) and Fcc metals (silver, Ag) when both of them were viewed along the <110> direction parallel to the twin plane (i.e., CTB).
contact202222 · Tungsten (W) as a structural component has grown roots in many special applications owing to its radiation-shielding capabilities and its properties at elevated temperatures. The high ductile-brittle transition temperature (DBTT) and the very high melting point of tungsten however have limited its processability to certain technologies
contact20211124 · The operational experiences of the upper W divertor on EAST suggest that the engineering of water-cooled W/Cu PFCs imposes strong constraints on the divertor structure design. For example, PFUs with a curvature radius less than 90 mm are very difficult to achieve, which constrains the shape design of dome and outer baffle.
contact2021427 · Tungsten (W) belongs to the transition group VI elements and is dissolved as the tetrahedral oxyanion tungstate (WO 4 2− 1–3). Riverine and hydrothermal sources, assumed to be the main inputs for marine W, have dissolved W concentrations that may be orders of magnitudes higher (rivers: 0.02 to 1029 nM; hydrothermal fluids: 0.22 to 123
contactAn MOCVD system is fulfilled with an atmosphere of tungsten hexacarbonyl, W(CO) 6, and dimethyl ... He completed his Ph.D. at the Shandong University in 2012. His research interests are related to the design and
contact2002121 · Tungsten (W) - Properties, Applications. Tungsten, also known as Wolfram, lapis ponderosus or Heavy Stone, has highest melting point of all elements except carbon - sources in scientific literature vary between 3387 °C and 3422 °C. It also has also excellent high temperature mechanical properties and the lowest expansion coefficient of
contact20161231 · Pure Tungsten (W) & Tungsten-lanthanum oxide (WL) were fabricated using Direct Sintering Press. W & WL found to be very good thermo-mechanical properties with higher densification desired for ...
contact2016930 · Tungsten (W) Strong Lines of Tungsten ( W ) Intensity Vacuum Wavelength (Å) Spectrum Reference 1000 P 1951.051 W II EKM00 900 P 1962.140 W II EKM00 600 1977.524 W II EKM00 600 1982.907 W
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