Enhanced mechanical, electrical properties and arc erosion resistance of CuW electrical contact materials by incorporation of in-situ formed graphene
Source abstract
Abstract
To solve the problems of W-phase agglomeration and arc instability of Cu–W contacts during electrical contact, Gr@Cu30W composites were prepared via in-situ growth and powder metallurgy. The arc erosion resistance mechanism of the composites was investigated through electrical contact testing. Results indicated that a typical "Cu–W-Gr" sandwich structure had formed via the hot extrusion and the in-situ Gr incorporation processes. This structure effectively pinned the Cu–W interface, improved electrical conductivity, and promoted arc transfer and extinction, thereby enhancd arc erosion resistance. Furthermore, Gr on the contact surface acted as a protective layer, mitigated the arc erosion damage to the matrix and improved stability during arc generation and extinction.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electrical Contact Performance and Analysis · Vacuum and Plasma Arcs · Mechanical stress and fatigue analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (45)
Show source-provided references
1. Preparation and properties of graphene reinforced Cu/0.5 CeO230Cr electrical contact materials10.1016/j.vacuum.2021.110687 ↗
2. Microstructure and electrical contact properties of Al2O3-Cu/(Cr, zr) composites
3. Investigation on arc behavior of AgNi electrical contact material with three-dimensional network structure10.1016/j.vacuum.2020.109290 ↗
4. Homogeneous arc ablation behaviors of CuCr cathodes improved by chromic oxide10.1016/j.jmst.2020.10.083 ↗
5. Material transfer behavior of AgTiB2 and AgSnO2 electrical contact materials under different currents10.1016/j.matdes.2016.10.056 ↗
6. Wu B, Lu J, Kang J, et al. Three-Dimensional network graphene-reinforced Cu-0.12 wt% Ag matrix composites for superior electrical contact performance[J]. Available at SSRN 5295562, https://doi.org/10.1016/j.jallcom.2025.182923.10.1016/j.jallcom.2025.182923 ↗
7. Microstructures and properties of silver-based contact material fabricated by hot extrusion of internal oxidized Ag–Sn–Sb alloy powders10.1016/j.msea.2012.01.031 ↗
8. Material transfer behavior of AgTiB2 contact under different contact forces and electrode gaps10.1016/S1003-6326(19)65013-2 ↗
9. Influence of alloy components on arc erosion morphology of Ag/MeO electrical contact materials10.1016/S1003-6326(16)64105-5 ↗
10. Arc erosion behavior and mechanism of Cu/Ti3SiC2 composites in air and c-C4F8/N2 mixture after multiple arc discharges10.1016/j.ceramint.2024.04.327 ↗
11. Influence of operation number on arc erosion behavior of Ag/Ni electrical contact materials10.1016/S1003-6326(22)65975-2 ↗
12. Microstructural investigation after vacuum electrical breakdown of the W-30wt.% Cu contact material10.1016/j.vacuum.2018.01.004 ↗
13. Arc ablation resistance behavior of Cu-W alloys with different W contents under atmospheric environment
14. Microstructure and properties of W-25 wt% Cu composites reinforced with tungsten carbide produced by an in situ reaction10.1016/j.vacuum.2020.109423 ↗
15. Investigation on arc erosion behaviors and mechanism of W70Cu30 electrical contact materials adding graphene10.1016/j.jallcom.2016.12.044 ↗
16. Microstructure and properties of ultrafine-grained W-25 wt.% Cu composites doped with CNTs10.1016/j.jmrt.2018.11.003 ↗
17. Influence evaluation of tungsten content on microstructure and properties of Cu-W composite10.3390/met12101668 ↗
18. Arc erosion behavior of a nanocomposite W-Cu electrical contact material10.1016/S1001-0521(06)60011-9 ↗
19. Erosion characteristics of WCu/Ti3SiC2 electrical contact materials by arc discharge in various ambient atmospheres10.1016/j.vacuum.2023.112821 ↗
20. Microstructure and properties of CuCr contact materials with different Cr content10.1016/S1003-6326(11)61612-9 ↗
21. Graphene oxide effects on the properties of Al2O3-Cu/35W5Cr composite10.1016/j.jmst.2019.08.014 ↗
22. Study on the arc erosion resistance and mechanism of Cr-doped WCu composites10.1016/j.matchar.2023.113291 ↗
23. Preparation and properties of copper matrix composites synergistically strengthened by Al2O3 and CPD10.1016/j.diamond.2022.108916 ↗
24. Enhancing mechanical properties of pure copper-based materials with CrxOy nanoparticles and CNT hybrid reinforcement10.1007/s10853-020-05440-6 ↗
25. Arc erosion resistance of hybrid copper matrix composites reinforced with CNTs and micro-TiB2 particles10.1016/j.jmrt.2021.01.084 ↗
26. Effect of graphene on the high-energy arc erosion performance of the W-Cu composite10.1016/j.vacuum.2023.111827 ↗
27. Enhanced electrical conductivity of copper by nitrogen-doped graphene10.1016/j.scriptamat.2023.115797 ↗
28. Enhanced arc erosion resistance of CNTs reinforced CuCr electrical contact materials fabricated by ultrasonic spray pyrolysis10.1016/j.jallcom.2025.181800 ↗
29. Trace graphene oxide and silver synergistically modify the microstructure and electrical contact properties of Al2O3-Cu/35Mo composites10.1016/j.jallcom.2025.179824 ↗
30. Effects of graphene nanoplates on arc erosion resistance and wear behavior under electric current of copper matrix composites10.1016/j.jallcom.2020.154356 ↗
31. Chemical vapor deposition of thin graphite films of nanometer thickness10.1016/j.carbon.2007.05.028 ↗
32. Fabrication of RGO/Cu composites based on electrostatic adsorption10.1016/S1003-6326(20)65270-0 ↗
33. Wrinkled, rippled and crumpled graphene: an overview of formation mechanism, electronic properties, and applications10.1016/j.mattod.2015.10.002 ↗
34. Origin and regulation of ultrahigh electrical conductivity of graphene in copper matrix composites
35. Ultrahigh electrical conductivity of graphene embedded in metals10.1002/adfm.201806792 ↗
36. Thermal deformation behavior of GO/CeO2 in-situ reinforced Cu30Cr10W electrical contact material10.1016/j.jallcom.2021.163266 ↗
37. Graphene oxide and silver effects on the arc erosion properties of Al2O3–Cu/30Cr composite10.1016/j.jmrt.2025.01.007 ↗
38. Thermal and arc erosion behavior of CuCr contact material based on large plastic deformation treatment10.1016/j.jmrt.2023.01.011 ↗
39. Arc erosion behavior of the Al2O3-Cu/(W, Cr) electrical contacts10.1016/j.compositesb.2018.10.040 ↗
40. Microstructure and properties of a Cu–Cr–Zr alloy10.1016/S0022-3115(01)00691-2 ↗
41. Effect of graphene on microstructure and properties of Gr/CuCr10 composites10.1016/S1003-6326(22)65868-0 ↗
42. Arc erosion behavior and mechanism of Cu/Cr20 electrical contact material10.1016/j.vacuum.2017.06.002 ↗
43. Contact erosion induced by free-burning arcs in an experimental gas circuit breaker
44. Arc erosion resistance of WC/CuCr30 composites based on changing of Cr particle morphology and orientation10.1016/j.jmrt.2023.05.116 ↗
45. Phenomena of arc root immobility in electrical contacts[C]