Results 1 to 10 of about 163,552 (306)

Effect of E-waste copper alloy additions on the microstructure and organization of Cu90PSn brazing joints [PDF]

open access: yesFrontiers in Chemistry
The effects of different contents of e-waste alloy on the microstructure and joint properties of Cu90PSn brazing filler metal was investigated during copper and copper brazing.
Li Bao   +3 more
doaj   +2 more sources

MnO‐Inlaid hierarchically porous carbon hybrid for lithium‐sulfur batteries

open access: yesNano Select, 2021
Lithium‐sulfur batteries possess great prospects in next‐generation energy‐storage devices though there are still some tough challenges currently. In this paper, MnO‐inlaid hierarchically porous carbon hybrid is prepared by a one‐pot solid‐state method ...
Weilin Liu   +7 more
doaj   +1 more source

Study on Synergistic Effect of La2O3 Nanoparticles and Silane in Copper Alloy Surface Treatment Solution [PDF]

open access: yesCailiao Baohu, 2021
In order to improve the corrosion resistance of the copper alloy surface, the synergistic effect of La2O3 nanoparticles and silane was studied.
LV Xue-fei, LV Ying, LU Hong-jie, GAN Shu-kun, SHI Long
doaj   +1 more source

Copper fiber reinforced needle-coke/carbon composite for pantograph slide and its current-carrying wear performance

open access: yesMaterials Research Express, 2022
Copper fiber reinforced needle-coke/carbon (CF-NC/C) composites with different copper fiber contents have been successfully developed for urban rail pantograph slide block.
Meng Li   +9 more
doaj   +1 more source

Microstructure evolution and corrosion resistance of high-pressure rheo-cast Mg–Zn–Y alloy containing quasicrystal

open access: yesJournal of Materials Research and Technology, 2023
The effects of high pressure applied during rheo-squeeze casting (RSC) process on the microstructure evolution and corrosion resistance of Mg90.8Zn8.6Y0.6 alloy were investigated.
Xiaogang Fang   +6 more
doaj   +1 more source

Full density graphite/copper-alloy matrix composite fabricated via hot powder forging for pantograph slide

open access: yesMaterials Research Express, 2021
High-performance copper-based pantograph slide materials play a crucial role in the rapid development of modern urban rail transit urgently. Herein, a full density graphite/copper-alloy matrix composite for pantograph slide has been successfully obtained
Man Wang   +6 more
doaj   +1 more source

The optimization of Cu6Y sourced ODS-Cu: Effect of Y2O3 content

open access: yesNuclear Materials and Energy, 2023
To refine the dispersive Y2O3 particles and to explore the optimum Y2O3 content, reducing the Y2O3 addition from 1.5 wt% to 0.5 wt% for Cu6Y sourced Cu-Y2O3 was investigated. It was found that reducing the Y2O3 addition had little influence on the number
Bing Ma   +7 more
doaj   +1 more source

Effect of annealing treatment on texture evolution, microstructure and mechanical properties of an extruded Mg-Gd-Zn-Zr alloy

open access: yesJournal of Materials Research and Technology, 2023
Texture evolution, microstructure and mechanical properties of an extruded Mg-10Gd-1Zn-0.4Zr alloy during annealing were investigated. A bimodal microstructure containing coarse deformed grains and fine dynamically recrystallized grains is observed when ...
Nan Wang   +10 more
doaj   +1 more source

Effect of flake graphite content on wear between behavior between P/M copper-based pantograph slide and contact wire

open access: yesMaterials Research Express, 2020
In this work, chromium-containing copper matrix com0posites with different flake graphite content (1.8 wt%, 2 wt%, 2.5 wt%) were fabricated by inexpensive powder metallurgy method, and the mechanical properties, friction properties and microstructure of ...
Jianxiang Huang   +8 more
doaj   +1 more source

A comparative study on the microstructure and performance stability of Cu-Al2O3 and Cu-Y2O3 alloys after high-temperature annealing

open access: yesNuclear Materials and Energy, 2023
This study presents a comparative analysis of the microstructure and performance stability of Cu-Al2O3 and Cu-Y2O3 alloy after annealing at temperatures ranging from 600 °C to 1000 °C.
Xiaoyuan Sun   +5 more
doaj   +1 more source

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