Arc erosion behavior of Ag/Ti3AlC2 electrical contact materials

Ding, Jianxiang; Tian, Wenbin; Zhang, P.; Zhang, M.; Zhang, Y.M.; Sun, ZhengMing

doi:10.1016/j.jallcom.2018.01.015

Cited by 59 publications

(11 citation statements)

References 27 publications

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“…This indicated the existence of Ag-rich layer on area A and Ag-CdO on area B. The formation of Ag-rich layer is related to the decomposition of CdO under high electric arc temperature, which has been discussed in our previous work [7].…”

Section: Cross Section Analysis Of Eroded Contactsmentioning

confidence: 52%

“…This result indicates the good wettability between Ag and Ti 2 SnC. Similar to Ag-Ti 3 AlC 2 system [7], the wettability of Ag-Ti 2 SnC also belongs to reactive wetting. At high temperatures, Ti-Sn bonds were readily broken and Ti 2 SnC was slightly decomposed, and then the interdiffusion between Ag and Sn reduced the interfacial tension of Ag/Ti 2 SnC, finally leading to the superior wettability.…”

Section: Wettabilitymentioning

confidence: 64%

“…In particular, the combination of high strength, good thermal and electrical conductivity makes MAX a potential reinforcing phase for Agbased electrical contact materials. Our preliminary work has demonstrated that Ag/10wt%Ti 3 AlC 2 composite owned the comparable arc erosion property to the Ag/CdO material [7]. Ti 2 SnC is another member of the MAX phase family, which was first discovered by Jeitschko et al [8].…”

Section: Introduction mentioning

confidence: 77%

“…12. The dark areas (1,2,3,5,6) and the bright areas (4,7,8) were observed on the surface of the Ag/10TSC contact ( Fig. 12(a)) and the Ag/20TSC (Fig.…”

Section: Arc Erosion Mechanism Of the Compositesmentioning

confidence: 98%

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Preparation and arc erosion properties of Ag/Ti2SnC composites under electric arc discharging

et al. 2019

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New Ag/Ti 2 SnC (Ag/TSC) composites with uniform microstructure were prepared by powder metallurgy. The superior wettability between Ag and Ti 2 SnC was confirmed with a contact angle of 14°. Arc erosion properties of Ag/10wt%Ti 2 SnC (Ag/10TSC) and Ag/20wt%Ti 2 SnC (Ag/ 20TSC) contacts were investigated under 400 V/100 A/AC-3 and compared with Ag/CdO contact. The Ag/10TSC contact exhibited comparable arc erosion property to Ag/CdO contact. The fine arc erosion resistance was attributed to the good wettability between Ti 2 SnC and Ag, the good heat-conducting property of Ag/10TSC, and the slight decomposition of Ti 2 SnC that absorbed part of electric arc energy. The excessive Ti 2 SnC significantly decreased the thermal conducting property of the Ag/20TSC composite, resulting in the severe heat accumulation that decomposed Ti 2 SnC and deteriorated arc erosion property. The oxidation behavior of Ti 2 SnC under high electric arc temperature was also studied and then an arc erosion mechanism was proposed to get a comprehensive understanding on the arc erosion property of Ag/TSC composites.

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Section: Cross Section Analysis Of Eroded Contactsmentioning

confidence: 52%

Section: Wettabilitymentioning

confidence: 64%

Section: Introduction mentioning

confidence: 77%

“…12. The dark areas (1,2,3,5,6) and the bright areas (4,7,8) were observed on the surface of the Ag/10TSC contact ( Fig. 12(a)) and the Ag/20TSC (Fig.…”

Section: Arc Erosion Mechanism Of the Compositesmentioning

confidence: 98%

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Preparation and arc erosion properties of Ag/Ti2SnC composites under electric arc discharging

et al. 2019

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“…Recently, with the widespread use of low voltage electrical contact elements, the amount of electrical contact materials has increased dramatically. General industrial application electrical contact materials are made of Ag-based composite materials with Ag content of 80-90% [8][9][10] . The Ag of the contact materials is difficult to recycle, and the production of which is relatively limited.…”

Section: Introductionmentioning

confidence: 99%

Contrastive Research on Electrical Contact Performance for Contact Materials of Cu-SnO2 and Cu-ZnO2 Alloys

et al. 2019

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Herein, SnO 2 -and ZnO 2 -doped (1.5 wt.%) composite Cu powder was prepared by mechanical alloying (MA) respectively, and both the contact materials of oxide-doped Cu alloys were subsequently obtained by canned hot-pressing powder sintering with hot extrusion combined. Scanning electron microscopy (SEM), laser scanning confocal microscopy (LSCM) and self-designed electrical breakdown device were used for investigating the microstructure and properties including electric conductivity and hardness, especially for electrical contact performance of the Cu-SnO 2 alloy and in compared with the Cu-ZnO 2 alloy. The experimental results show that the hardness of Cu-SnO 2 and Cu-ZnO 2 contact materials are 103.5±1 HV and 192.7±1 HV, respectively, which meet the hardness standard of national standard electrical contact materials. Meanwhile, the relative conductivity %IACS are 7.24% and 6.20%, respectively, which are higher than the traditional Cu-based contact materials. This electrical life simulation test system was designed independently, and the results indicate that the switching times of Cu-SnO 2 contact materials are much more than that of Cu-ZnO 2 . The addition of SnO 2 can effectively improve the arc extinguishing characteristics and the anti-welding performance of the contact materials is enhanced. In summary, SnO 2 -doped Cu-based contact materials possess excellent comprehensive properties, which can provide reference for potential applications in contact materials.

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Titanium Monocarbide

Shabalin¹

2020

Ultra-High Temperature Materials III

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Arc erosion behavior of Ag/Ti3AlC2 electrical contact materials

Cited by 59 publications

References 27 publications

Preparation and arc erosion properties of Ag/Ti2SnC composites under electric arc discharging

Preparation and arc erosion properties of Ag/Ti2SnC composites under electric arc discharging

Contrastive Research on Electrical Contact Performance for Contact Materials of Cu-SnO2 and Cu-ZnO2 Alloys

Titanium Monocarbide

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