Results 11 to 20 of about 23,668 (218)

Differences of enamel surface after bracket debonding and adhesive removal with tungsten carbide, steel bur, and adhesive removing plier [PDF]

open access: yesJournal of Orthodontic Science
INTRODUCTION: One of the goals of orthodontic treatment is to restore the enamel surface to its pretreatment condition. The objective of this research is to compare the differences in enamel surfaces after adhesive removal using tungsten carbide burs ...
Steffi Tanusetiawan   +5 more
doaj   +2 more sources

Tungsten Carbide/Tungsten Oxide Catalysts for Efficient Electrocatalytic Hydrogen Evolution [PDF]

open access: yesMolecules
Catalyzing hydrogen evolution reaction (HER) is a key process in high-efficiency proton exchange membrane water electrolysis (PEMWE) devices. To replace the use of Pt-based HER catalyst, tungsten carbide (W2C) is one of the most promising non-noble-metal-
Jian Ouyang   +5 more
doaj   +2 more sources

Phosphorus-Modified Palladium and Tungsten Carbide/Mesoporous Carbon Composite for Hydrogen Oxidation Reaction of Proton Exchange Membrane Fuel Cells [PDF]

open access: yesNanomaterials
A composite material of tungsten carbide and mesoporous carbon was synthesized by the sol-gel polycondensation of resorcinol and formaldehyde, using cetyltrimethylammonium bromide as a surfactant and Ludox HS-40 as a porogen, and served as a support for ...
Ganghong Bae   +6 more
doaj   +2 more sources

Microstructure and Wear Resistance of Tungsten Carbide Particle Reinforced Ni - Based PTA Powder Surfacing Layer [PDF]

open access: yesCailiao Baohu, 2022
In order to study the microstructure and wear resistance of tungsten carbide particle reinforced nickel-based welding layer,three kinds of tungsten carbide particles were selected as the hard phase to mix with nickel-based alloy powder to conduct PTA ...
YU Wei, LI Yuxi, ZHOU Wuxi, HE Xiangjian, SONG Can
doaj   +1 more source

A new method for preparation of tungsten carbide powder by in situ electrochemical reduction

open access: yesElectrochemistry Communications, 2022
A new electrochemical method for efficient and green recovery of cemented carbide in a molten salt is described. Tungsten powder is the main product when recovering cemented carbide by molten salt electrolysis.
Liwen Zhang, Xiaoli Xi, Zuoren Nie
doaj   +1 more source

Effect of Y2O3 Addition on High-Temperature Oxidation of Binderless Tungsten Carbide

open access: yesFrontiers in Materials, 2021
High-temperature oxidation tests were carried out on binderless tungsten carbide (WC) with different Y2O3 contents (0, 1, 2, 3, and 4 wt.%) and on YG3 cemented carbide.
Jinfang Wang   +10 more
doaj   +1 more source

Additive Manufacturing of WC-Co by Indirect Selective Laser Sintering (SLS) using High Bulk Density Powders [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
Research in additive manufacturing of tungsten carbide-cobalt has intensified over the last few years due to the increasing need for products designed using topology optimisation and multiscale structures (lattice).
R.V. Gădălean   +4 more
doaj   +1 more source

The impact of additives applied to the lubricant on the burnishing process and tribological properties

open access: yesInternational Journal of Applied Mechanics and Engineering, 2023
The aim of this study was to determine the impact of additions of tungsten carbide and silicon carbide microparticles to the lubricant used in the burnishing process on the tribological properties of friction pairs.
Krzysztof Adamczuk   +4 more
doaj   +1 more source

Effect of Tungsten Carbide Morphology, Quantity, and Microstructure on Wear of a Hardfacing Layer Manufactured by Plasma Transferred Arc Welding

open access: yesMetals, 2021
Hardfacing layers on mild steel substrates were successfully manufactured using a plasma transferred arc welding (PTAW) process to combine tungsten carbide powder and binder metal.
Kwang-jin Lee, DaeHan Kim
doaj   +1 more source

Effect of Boron and Tungsten Carbides on the Properties of TiC-Reinforced Tool Steel Matrix Composite Produced by Powder Metallurgy [PDF]

open access: yesArchives of Metallurgy and Materials, 2020
The influence of boron carbide and tungsten carbide on the apparent porosity, density, coercive force, hardness and microstructure of metal matrix composite of the Ferro-TiC type, is presented in this paper.
Ljerka Slokar Benić   +2 more
doaj   +1 more source

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