Anisotropic arc erosion resistance of Ag/Ti3AlC2 composites induced by the alignment of Ti3AlC2

Arc erosion characteristics evolution of Ag/Ti3SiC2 composites during repetitive arc breakdowns in SF6 gaseous medium

“…And the results indicated that there were only Ag and Ti 3 SiC 2 can be detected on the eroded region in sulfur hexafluoride. In the researches of other groups, the arc erosion performances of Ag/Ti 2 SnC and Ag/Ti 3 AlC 2 composite have also been reported, 18–20 these sliver matrix contact materials belong to the same class materials as Ag/Ti 3 SiC 2 . For Ag/Ti 2 SnC composites, 18 inhomogeneous corrosion phenomena were found on the surfaces, the contact surfaces were divided into unaffected, transitional, and affected regions.…”

“…For Ag/Ti 2 SnC composites, 18 inhomogeneous corrosion phenomena were found on the surfaces, the contact surfaces were divided into unaffected, transitional, and affected regions. Wang et al 19 observed that the Ag/Ti 3 AlC 2 samples with the parallel alignment of Ti 3 AlC 2 particles exhibit superior arc erosion resistance to the samples with the perpendicular alignment of Ti 3 AlC 2 particles. And Ding et al 20 investigated the arc erosion mechanism and degradation process of Ag/Ti 3 AlC 2 by conducting dynamic arc discharge on the contacts.…”

Break-Arc Erosion and Material Transfer Behavior of Pt–Ir and Pt–Ir–Y Electrical Contact Materials under Different Currents

“…Ding et al [30] found, when studying the arc behavior of Ag/Ti 3 AlC 2 under 100 A/400 V/AC conditions, that the good wettability of Ti 3 AlC 2 with the silver matrix led to the uniform dispersion of its particles in liquid Ag, increasing the viscosity of the molten pool and restricting the flow and splashing of the liquid silver, which, in turn, enhanced the resistance of the contacts to arc erosion. Wang et al [31] reported that Ag/Ti 3 AlC 2 composites prepared via equal channel angular pressing (ECAP) showed better resistance to arc erosion when Ti 3 AlC 2 particles were aligned parallel to the contact surface than when Ti 3 AlC 2 particles were aligned perpendicular to the contact surface. Given the above reports, it is evident that additives are a viable way to improve electrical contact properties, such as arc erosion resistance and the material loss of electrical contact materials.…”