Results 11 to 20 of about 344,011 (306)

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

open access: yesMaterials 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   +5 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

open access: yesIEEE 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   +5 more
doaj   +1 more source

Inconel 718-W7Ni3Fe bimetallic structures using directed energy deposition-based additive manufacturing

open access: yesVirtual and Physical Prototyping, 2022
Bimetallic structures produced via additive manufacturing (AM) have demonstrated outstanding potential for improving the properties of high-temperature structures.
C. Groden   +4 more
doaj   +1 more source

Insights into the floatability between spodumene and albite from crystal chemistry standpoint

open access: yesInternational Journal of Mining Science and Technology, 2022
Spodumene is a silicate mineral rich in lithium. However, the gangue mineral, albite has similar crystal chemical structure and composition to spodumene. In this work, the density functional theory (DFT) calculation was taken to research the floatability
Hepeng Zhou   +5 more
doaj   +1 more source

Study on Plastic Deformation Behavior of Mo-10Ta under Ultra-High Strain Rate

open access: yesMetals, 2020
This study investigated the deformation behavior of the Mo-10Ta alloy with a strain rate range of 102–105 sāˆ’1. The Split Hopkinson pressure bar (SHPB) experiments were conducted to investigate the influence of deformation conditions on the stress-strain ...
Ping Song   +5 more
doaj   +1 more source

Assessment of the environmental toxicity and carcinogenicity of tungsten-based shot. [PDF]

open access: yes, 2009
The toxicity of elemental tungsten released from discharged shot was assessed against previous studies that established a 1% toxic threshold for soil organisms.
Harrison, Paul T. C.   +2 more
core   +1 more source

Enhanced Mechanical Properties Via the Incorporation of Ti in Cu Alloys [PDF]

open access: yesArchives of Metallurgy and Materials
The influence of Ti addition on the microstructure, mechanical properties and electrical conductivity of Cu-14Fe alloy is studied. Great emphasis has been laid on the second phase, texture and mechanical properties.
Huihui Yu   +7 more
doaj   +1 more source

Microstructures and mechanical properties of tungsten wire/particle reinforced Zr57Nb5Al10Cu15.4Ni12.6 metallic glass matrix composites [PDF]

open access: yes, 2002
Tungsten wire or particle reinforced metallic glass matrix composites are produced by infiltrating liquid Zr57Nb5Al10Cu15.4Ni12.6 (Vit106) into tungsten reinforcements at 1150 and at 1425 K.
Choi-Yim, Haein   +2 more
core   +1 more source

Influences of Alternating Magnetic Fieldson the Growth Behavior and Distribution of the Primary Fe Phasein Cu-14Fe Alloys during the Solidification Process

open access: yesMetals, 2018
An alternating magnetic field (AMF) was applied during the solidification process of the Cu-14Fe alloy and the effect of the electromagnetic parameter, which impact the model and solidification technique of the solidification structure that were analyzed.
Jin Zou   +4 more
doaj   +1 more source

Tungsten and barium transport in the internal plasma of hollow cathodes [PDF]

open access: yes, 2008
The effect of tungsten erosion, transport, and redeposition on the operation of dispenser hollow cathodes was investigated in detailed examinations of the discharge cathode inserts from 8200 h and 30 352 h ion engine wear tests.
Capece, Angela M.   +3 more
core   +1 more source

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