LEADER 02177nam 2200385z- 450 001 9910347056603321 005 20231214141217.0 010 $a1000037554 035 $a(CKB)4920000000101950 035 $a(oapen)https://directory.doabooks.org/handle/20.500.12854/61336 035 $a(EXLCZ)994920000000101950 100 $a20202102d2013 |y 0 101 0 $ager 135 $aurmn|---annan 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aDie tribologischen Eigenschaften von vergoldeten elektrischen Kontakten 210 $cKIT Scientific Publishing$d2013 215 $a1 electronic resource (XIV, 138 p. p.) 311 $a3-7315-0146-5 330 $aElectrical contacts in automotive applications are exposed to thermal and vibration induced relative motion in the tribological contact. Fretting tests with an AuCo/Ni vs. Au/NiP ball to plate contact were conducted in order to describe the ongoing wear mechanisms. Furthermore, a global wear approach was chosen to quantify the overall wear. According to a predefined electrical failure criterion the connector lifetime is demonstrated in a model depending on oscillating amplitude, gold thickness and contact roughness. The electrical failure of the contact can be reduced to the wear of the gold platings leading to exposure of the nickel interlayer and consequently oxidation. Through material transfer, plowing, particle generation and the particle transport mechanisms the contact resistance increases and therefore limits the connector lifetime. The link between the lifetime models and the global wear approach allows for calculation of the lifetime when only the wear and the stress of the tribosystem are known. 610 $agold 610 $aSchwingverschleiß 610 $aGold 610 $aelektrischer Steckkontakte 610 $aTribologie 610 $afretting 610 $aelectrical contacts 610 $atribology 700 $aHoppe$b Tobias$4auth$01304692 906 $aBOOK 912 $a9910347056603321 996 $aDie tribologischen Eigenschaften von vergoldeten elektrischen Kontakten$93027612 997 $aUNINA