20.500.12556/RUL-106729 Influence of contact parameters on the tribological behaviour of various graphite/graphite sliding electrical contacts Sliding electrical contacts are used in devices for the conduction of electrical power or the electrical signals between stationary and moving parts. The most widely used electrical-sliding system is still the conventional slip ring and brush assembly. In the last decade, the lifetime of ring-brush contacts was extended through the use of better contact-material combinations and design improvements. However, the extremely rapid electrification of many more components has put severe demands on this extended lifetime. This paper presents a novel, patented design for two sliding discs that allows the use of advantageous graphite/graphite contacts. In the literature there is a serious lack of understanding the performance of sliding electrical contacts with graphite/graphite pairs, which depends on the key contact parameters, as well as the influence and potential of the different available graphite materials. The normal load, the contact velocity, the electric current, and the three self-mated graphite contacts, i.e., hard carbon, electrographite and polymer-bonded graphite, were investigated. The results indicate that the contact conditions influence the performance, which is also very dependent on the graphite materials. The polymer-bonded graphite showed the best results in this study. sliding electrical contacts slip-ring graphite friction wear electric current drsni električni kontakti drsni obroči grafit trenje obraba električni tok true false true Angleški jezik Slovenski jezik Članek v reviji 2019-03-14 09:57:40 2019-03-14 09:57:41 2025-03-04 11:12:53 0000-00-00 00:00:00 2018 0 0 Str. 75-83 Vol. 406-407 Jul. 2018 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2022-07-31 539.92:621.8(045) 0043-1648 16085019 5374213 RAZ_Poljanec_Dejan_i2018.pdf RAZ_Poljanec_Dejan_i2018.pdf 1 0F68316CDC1A3D0A23CFB4B34255F679 3dc2d73616c2e86ac81198859e33ae402c58e6b8fda0ee0bf6a3891a74a109e9 5d8c0c5e-a1b6-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=117497 https://www.sciencedirect.com/science/article/pii/S004316481830084X?via%3Dihub 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=117496 Fakulteta za strojništvo 0 0 0