Results 11 to 20 of about 253,700 (370)

Identification of radiopure tungsten for low background applications [PDF]

J. Phys. G: Nucl. Part. Phys. 49 (2022) 115201 (26pp) (from 17 October 2022), 2022
In this article we explore the availability of radiopure tungsten and its potential as high density shield material for low background applications. For compact shield designs, conventionally, lead is used. Metallic tungsten and tungsten pseudo-alloys reach higher densities up to 19.3 gcm$^{-3}$ and do not exhibit a significant $^{210}$Pb activity ...
arxiv   +1 more source

Outstanding radiation resistance of tungsten-based high-entropy alloys [PDF]

Science Advances, 2018
Are high-entropy alloys the solution to radiation damage? A body-centered cubic W-based refractory high entropy alloy with outstanding radiation resistance has been developed. The alloy was grown as thin films showing a bimodal grain size distribution in
O. El-Atwani, Nan Li, Meimei Li, A. Devaraj, Jon K. Baldwin, M. Schneider, D. Sobieraj, J. Wróbel, D. Nguyen-Manh, S. Maloy, Enrique Martinez   +10 more
semanticscholar   +1 more source

Fabrication, microstructure, and properties of W–Re/graphite composites

Fenmo yejin jishu, 2021
The W‒Re/graphite composites were sintered by vacuum hot-pressing sintering at 1850 ℃ and 30 MPa, using the W–Re plates and the graphite blocks as the raw materials and the Mo/Zr mixed powders as the solder.
YU Chen-xu
doaj   +1 more source

Precipitation at Tungsten/Tungsten Interfaces in Tungsten–Nickel–Iron Heavy Alloys [PDF]

Powder Metallurgy, 1986
AbstractA study of precipitation at the tungsten grain boundaries in the tungsten–nickel–iron ternary alloy system has been undertaken. Scanning and transmission electron microscopy techniques have been used to study the effect of various post-sintering heat treatments on the precipitation reaction.
Posthill, J.B., Hogwood, M.C., Edmonds, D.V.   +2 more
openaire   +2 more sources

A Review of Tungsten Resources and Potential Extraction from Mine Waste

Minerals, 2021
Tungsten is recognized as a critical metal due to its unique properties, economic importance, and limited sources of supply. It has wide applications where hardness, high density, high wear, and high-temperature resistance are required, such as in mining,
Zheng Han, A. Golev, M. Edraki
semanticscholar   +1 more source

W7Ni3Fe-Ti6Al4V bimetallic layered structures via directed energy deposition

Virtual and Physical Prototyping, 2023
Bimetallic structures of Ti6Al4V-W7Ni3Fe were fabricated via directed energy deposition (DED)-based additive manufacturing (AM). Our research demonstrates the ability of DED-based AM to control Ti6Al4V-W7Ni3Fe bimetallic structures with tailorable ...
Yanning Zhang, Cory Groden, E. Nyberg, A. Bandyopadhyay   +3 more
doaj   +1 more source

Preparation technology of tungsten silicide alloys used for sputtering target

Fenmo yejin jishu, 2021
W–Si alloy blocks were prepared by vacuum calcination, using the W and Si mixed powders as the raw materials, and the W–Si sputtering targets followed the requirements of semiconductor application were successfully prepared by crushing and sintering. The
HUANG Zhi-min, WANG De-zhi, WU Zhuang-zhi, CHEN Jin, LI Bao-qiang   +4 more
doaj   +1 more source

Design of a Dual-Permanent-Magnet Vernier Machine to Replace Conventional Surface-Mounted Permanent Magnet Motor for Direct-Drive Industrial Turbine Application

IEEE Access, 2023
Surface-mounted permanent magnet motors (SMPMMs) have been widely used in industrial fields. However, when it comes to direct-drive low-speed large-torque fields, SMPMMs have several problems, such as lower slot filling factor, complicated fabrication ...
Qifang Lin, Xing Zhao, Fengbin Cai, Qiannan Wu, Jiapeng Pang, Xinhua Guo   +5 more
doaj   +1 more source

Anomalously small superconducting gap in the strong spin-orbit coupled superconductor: $ β- $Tungsten [PDF]

Phys. Rev. B 105, L060503 (2022), 2021
Thin films of $ \beta- $tungsten host superconductivity in the presence of strong spin-orbit coupling. This non-equilibrium crystalline phase of tungsten has attracted considerable attention in recent years due to its giant spin Hall effect and the potential promise of exotic superconductivity.
arxiv   +1 more source

Preparation and characterization of Cr-doped tungsten oxide by liquid-liquid doping precursor

Materials Research Express, 2021
The tungsten oxides with uniformly grain growth inhibitor elements can significantly improve the distribution of inhibitors in the subsequent WC powders, and finally enhanced the properties of ultra-fine grained cemented carbides.
Xu Guozuan, Rutie Liu, Yang Qiumin, Yang Chenghui, Huang Guohui, Xiong Xiang   +5 more
doaj   +1 more source