High-voltage arc erosion behavior and mechanism of Ti3AlC2 under different ambient atmospheres

Zhao, Hao; Feng, Yi; Zhou, Zijue; Qian, Gang; Zhang, Jingcheng; Zhang, Xuebin

doi:10.1016/j.jeurceramsoc.2020.11.041

Cited by 22 publications

(2 citation statements)

References 40 publications

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“…It is worth mentioning that the sulfur ions and fluorine ions formed by decomposition will recombine to form sulfur hexafluoride, which will rapidly restore the electrical insulation of the experimental atmosphere and accelerate the extinguishing of the arc, thus reducing the damage of the arc to the cathode. [44].…”

Section: Discussionmentioning

confidence: 99%

Erosion behavior and mechanism of Cu-B₄C composites under arc discharge in different atmospheres

Feng

Wang

et al. 2022

Mater. Res. Express

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Ceramic particle-reinforced materials are an important part of high-performance contact materials because of the excellent performance in resistance to arc erosion. In particular, B4C is the ideal choice for the preparation of high-performance electrical contact materials because of its excellent physicochemical properties. In this paper, Cu-B4C composites were prepared by hot-press sintering technology to illustrate the arc erosion behavior of Cu-B4C composites in different atmospheres at high voltages. The erosion morphology and composition of Cu-B4C composites after erosion in air, carbon dioxide and sulfur hexafluoride atmosphere at 8kV were studied. The different erosion mechanisms of Cu-B4C composites in air, carbon dioxide and sulfur hexafluoride atmospheres were systematically discussed. The results showed that the Cu-B4C composites exhibited inhomogeneous erosion in all three atmospheres, and the erosion was mainly concentrated in the region around the B4C particles. In air, the Cu-B4C composites were most severely eroded, but showed better erosion resistance in carbon dioxide and sulfur hexafluoride. The experimental atmosphere decomposed and reacted with copper on the cathode surface at high temperatures, while B4C maintained a good structure after erosion.

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Section: Discussionmentioning

confidence: 99%

Erosion behavior and mechanism of Cu-B₄C composites under arc discharge in different atmospheres

Feng

Wang

et al. 2022

Mater. Res. Express

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“…In order to deeply analyze the arc ablation characteristics, the energy flow density of the arc injected electrode under different gas environments and pressures is calculated. Energy flow density is a key parameter to study arc characteristics, which is mainly used to evaluate the degree of arc ablation on electrodes [31,32]. The arc energy flow density is calculated by integrating the arc voltage, arc current, and arc burning time.…”

Section: Analysis Of Arc Ablation Characteristicsmentioning

confidence: 99%

Arc stability and ablation characteristics in O₂, N₂, and air environments

Dong,

Yang,

Luo

et al. 2024

Phys. Scr.

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Arcing is widely used in the processing and manufacturing of electrical materials. Arc duration and stability play a key role in the quality and efficiency of arc welding and cutting. Additionally, the generation of the arc will cause faults, failures, and even fire, and explosion in the electrical contact system. Arc is also a critical problem that threatens the safe and stable work of electrical contact systems. Therefore, a platform for arc experiment and test analysis in a multi-atmosphere environment is built in this paper. The influence of the gas environments and gas pressures on arc breaking distance and ablation characteristics is explored. The experimental results show that the oxygen environment is conducive to rapid arc extinguishing. This phenomenon is because oxygen has strong electronegativity, which makes it easy to adsorb charged particles and leads to a density decrease of charged particles. The variation of arc breaking distance and ablation characteristics under different gas environments and gas pressures is found. The influence mechanism of gas environments and gas pressures on arc breaking distance and ablation characteristics are explored. The correlation mechanism between arc breaking distance and arc ablation characteristics is revealed. The research results provide theoretical support for improving the quality of electrical material processing and manufacturing and the service life of electric contact systems. Keywords: Arc breaking distance, arc stability, arc ablation, different arcing environments

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Arc Erosion Performance of AgTi3SiC2 Cathode Under Multiple Arc Discharges in SF6/N2 Mixture Gases

Zhou

Cao

Tian

et al. 2023

J. Electron. Mater.

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High-voltage arc erosion behavior and mechanism of Ti3AlC2 under different ambient atmospheres

Cited by 22 publications

References 40 publications

Erosion behavior and mechanism of Cu-B₄C composites under arc discharge in different atmospheres

Erosion behavior and mechanism of Cu-B₄C composites under arc discharge in different atmospheres

Arc stability and ablation characteristics in O₂, N₂, and air environments

Arc Erosion Performance of AgTi3SiC2 Cathode Under Multiple Arc Discharges in SF6/N2 Mixture Gases

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High-voltage arc erosion behavior and mechanism of Ti3AlC2 under different ambient atmospheres

Cited by 22 publications

References 40 publications

Erosion behavior and mechanism of Cu-B4C composites under arc discharge in different atmospheres

Erosion behavior and mechanism of Cu-B4C composites under arc discharge in different atmospheres

Arc stability and ablation characteristics in O2, N2, and air environments

Arc Erosion Performance of AgTi3SiC2 Cathode Under Multiple Arc Discharges in SF6/N2 Mixture Gases

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Product

Resources

About

Erosion behavior and mechanism of Cu-B₄C composites under arc discharge in different atmospheres

Erosion behavior and mechanism of Cu-B₄C composites under arc discharge in different atmospheres

Arc stability and ablation characteristics in O₂, N₂, and air environments