Results 21 to 30 of about 526,420 (390)

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

open access: yesPowder 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.   +2 more
openaire   +2 more sources

Rationally designed Sb2S3/PDI composites with enhanced visible light photoactivity

open access: yesCatalysis Communications, 2022
Constructing organic-inorganic semiconductor heterojunctions is an efficient way to inhibit the recombination of photogenerated charge carriers and enhance photocatalytic performance of semiconductor.
Jin-Ge Hao   +8 more
doaj   +1 more source

Recent advances of nickel hydroxide-based cocatalysts in heterogeneous photocatalysis

open access: yesCatalysis Communications, 2022
Earth-abundant nickel hydroxide (Ni(OH)2)-based cocatalysts, by virtue of its bargain price, simple synthesis and diverse structure, have attracted increasing research interest in the field of solar-to-fuels conversion.
Lei Xie   +7 more
doaj   +1 more source

W7Ni3Fe-Ti6Al4V bimetallic layered structures via directed energy deposition

open access: yesVirtual 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   +3 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

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 s−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

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

Preparation technology of tungsten silicide alloys used for sputtering target

open access: yesFenmo 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   +4 more
doaj   +1 more source

A Review of Tungsten Resources and Potential Extraction from Mine Waste

open access: yesMinerals, 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

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

Home - About - Disclaimer - Privacy