Results 1 to 10 of about 337,374 (183)

Influence of Copper Powder Morphology on the Microstructure and Properties of Copper Matrix Bulk Composites Reinforced with Ni-doped Graphene [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
To clarify the effect of copper powder morphology on the microstructure and properties of copper matrix bulk composites reinforced with Ni-doped graphene, spherical and dendritic copper powders were selected to fabricate the Ni-doped graphene reinforced ...
Jituo Liu   +5 more
doaj   +1 more source

The effect of particle structure on apparent density of electrolytic copper powder [PDF]

open access: yesJournal of the Serbian Chemical Society, 2001
The quantitative microstructural analysis and the sieve analysis of copper powder as well as the scanning electron microscopy analysis of the copper powders particles were performed. It was found that the structure of the copper powder particles
Pavlović M.G.   +4 more
doaj   +3 more sources

Effect of Coupled Mechanical-Chemical Activation on Hydration Activity of Copper Slag Powder

open access: yesApplied Sciences, 2022
In order to investigate the effect and mechanism of coupled mechanical–chemical activation on the hydration activity of copper slag powder, copper slag powder with different grinding time and content was applied to prepare composite cement. The hydration
Jielu Zhu   +5 more
doaj   +1 more source

Significantly enhanced high-temperature mechanical properties of Cu-Cr-Zn-Zr-Si alloy with stable second phases and grain boundaries

open access: yesMaterials & Design, 2023
Improving high-temperature strength and resistance to high-temperature softening is an important method to promote the application of high-performance Cu-Cr-Zr alloy in fields such as resistance welding electrodes and high-speed railway contact wires.
Chengzhi Huang   +8 more
doaj   +1 more source

Egg yolk cholesterol, egg quality, and performance in response to copper–methionine chelates and alfalfa powder supplementation in Nick chick laying hen diets

open access: yesJournal of the Indonesian Tropical Animal Agriculture, 2023
This experiment was designed to investigate the effects of different levels of copper–methionine chelates and alfalfa powder on egg yolk cholesterol content, egg quality, and performance in laying hens.
A. S. Noori   +4 more
doaj   +1 more source

Copper-Graphene Composite Materials: Manufacturing Technology and Properties [PDF]

open access: yesProblemy Mechatroniki, 2019
The article presents the results of preliminary research into the feasibility of copper-graphene composite application in the production of shaped charge liners in HEAT ammunition from graphene-coated copper grain powders by powder metallurgy techniques.
Tomasz MAJEWSKI   +5 more
doaj   +1 more source

High resolution powder blast micromachining [PDF]

open access: yes, 2000
Powder blasting, or Abrasive Jet Machining (AJM), is a technique in which a particle jet is directed towards a target for mechanical material removal. It is a fast, cheap and accurate directional etch technique for brittle materials like glass, silicon ...
Berenschot, J.W.   +3 more
core   +8 more sources

Progress in laser powder bed fusion of pure copper/copper alloy highly reflective metal materials

open access: yesCailiao gongcheng, 2022
Pure copper/copper alloy has excellent thermal and electrical conductivity, which is an important industrial material. Laser powder bed fusion, which represents the laser additive manufacturing technology, has excellent design freedom and forming ...
ZHU Yongqiang   +5 more
doaj   +1 more source

Study of Some Mechanical Properties for a Polymer Material Reinforcement with Chip or Powder Copper

open access: yesJournal of Engineering, 2023
In this paper, chip and powder copper are used as reinforcing phase in polyester matrix to form composites. Mechanical properties such as flexural strength and impact test of polymer reinforcement copper (powder and chip) were done, the maximum flexural
علي حسين عتيوي   +2 more
doaj   +1 more source

Electrochemical Method of Copper Powder Synthesis on Rotating Electrode in the Presence of Surfactants [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
This paper presents a method of synthesizing copper powders by electrochemical method with the use of a rotating working electrode. The influence of the rotation speed of the working electrode, the current density, the concentration of copper ions, and ...
K. Wojtaszek   +8 more
doaj   +1 more source

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