Results 41 to 50 of about 538,837 (382)

Feasibility Study on Production of High-Purity Rhenium-185 by Nuclear Transmutation of Natural Tantalum

open access: yesJournal of Nuclear Engineering, 2023
Rhenium-186 (Re-186) has attracted attention as a medical isotope. The feasibility of producing Re-185, the raw material for Re-186, using a fast reactor was evaluated using a continuous energy Monte Carlo code.
Yuki Tanoue   +2 more
doaj   +1 more source

Effect of trace Y2O3 on microstructure and properties of WC−6Co cemented carbides with inhomogeneous structure

open access: yesFenmo yejin jishu
Inhomogeneous structure WC−6Co cemented carbides with the different Y2O3 additions (mass fraction) were prepared by low pressure sintering. The microstructure and properties of the cemented carbides were investigated by scanning electron microscope (SEM),
TANG Yanyuan   +4 more
doaj   +1 more source

Thermodynamic Properties and Equation of State for Tungsten

open access: yesCrystals, 2023
A high-temperature equation of state for tungsten was constructed in this study using experimental data on its thermodynamic properties, thermal expansion, compressibility, and bulk compression modulus. The totality of experimental data were optimized by
Nikolay V. Kozyrev, Vladimir V. Gordeev
doaj   +1 more source

Analysis of Shielding Performance of Radiation-Shielding Materials According to Particle Size and Clustering Effects

open access: yesApplied Sciences, 2021
In the field of medical radiation shielding, there is an extensive body of research on process technologies for ecofriendly shielding materials that could replace lead.
Seon-Chil Kim
doaj   +1 more source

Tungsten wire and tubing joined by nickel brazing [PDF]

open access: yes, 1965
Thin tungsten wire and tungsten tubing are brazed together using a contacting coil of nickel wire heated to its melting point in an inert-gas atmosphere.

core   +1 more source

Recent Advancements in Bulk Processing of Rare‐Earth‐Free Hard Magnetic Materials and Related Multiscale Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
This article provides an overview of recent advancements in bulk processing of rare‐earth‐free hard magnetic materials. It also addresses related simulation approaches at different scales. The research on rare‐earth‐free magnetic materials has increased significantly in recent years, driven by supply chain issues, environmental and social concerns, and
Daniel Scheiber, Andrea Bachmaier
wiley   +1 more source

Influence of microstructure and applied force on the crack initiation and propagation of tungsten electrodes for spot welding

open access: yesNihon Kikai Gakkai ronbunshu, 2018
In recent years, the electrical wiring works of automobiles and home electronics have become highly complicated, and a spot welding is being used as the interconnecting joining method.
Akira KURUMADA   +3 more
doaj   +1 more source

Tungsten thermal neutron dosimeter [PDF]

open access: yes, 1969
Tungsten-185 activity, which is produced by neutron activation of tungsten-184, determines thermal neutron flux. Radiochemical separation methods and counting techniques for irradiated tungsten provide accurate determination of the radiation ...
Ball, L. L.   +2 more
core   +1 more source

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud   +7 more
wiley   +1 more source

Grain growth inhibitor for porous tungsten materials [PDF]

open access: yes, 1968
Boron, either uncombined or combined with nitrogen or carbon added to tungsten powder prior to processing, effectively inhibits grain growth.
Todd, H. H.
core   +1 more source

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