Interfacial layer as an evaluation criterion of electrical contacts

Filippakou, MP; Karagiannopoulos, CG; Bourkas, PD

dc.contributor.author	Filippakou, MP	en
dc.contributor.author	Karagiannopoulos, CG	en
dc.contributor.author	Bourkas, PD	en
dc.date.accessioned	2014-03-01T01:12:01Z
dc.date.available	2014-03-01T01:12:01Z
dc.date.issued	1996	en
dc.identifier.issn	1350-2344	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11920
dc.subject	Electrical contacts	en
dc.subject	Evaluation criterion	en
dc.subject	Interfacial layer	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.other	Current voltage characteristics	en
dc.subject.other	Electric current measurement	en
dc.subject.other	Electric currents	en
dc.subject.other	Electric field effects	en
dc.subject.other	Electric switches	en
dc.subject.other	Interfaces (materials)	en
dc.subject.other	Ionization of solids	en
dc.subject.other	Voltage measurement	en
dc.subject.other	Waveform analysis	en
dc.subject.other	Evaluation criterion	en
dc.subject.other	Interfacial layer	en
dc.subject.other	Stationary switch contacts	en
dc.subject.other	Voltage drop waveforms	en
dc.subject.other	Electric contacts	en
dc.title	Interfacial layer as an evaluation criterion of electrical contacts	en
heal.type	journalArticle	en
heal.identifier.primary	10.1049/ip-smt:19960127	en
heal.identifier.secondary	http://dx.doi.org/10.1049/ip-smt:19960127	en
heal.language	English	en
heal.publicationDate	1996	en
heal.abstract	Stationary switch contacts of practical applications may present nonlinear current-voltage behaviour and phase shift effects. These phenomena are related to the appearance of tunnelling currents in the interfacial layer at high electric fields. In the paper experimental data are presented, and a theoretical investigation is attempted concerning these phenomena. The results lead to a new method for the quality evaluation of stationary electrical contacts. This method is based on measurements of the voltage drop waveforms on contacts under test. From the experimental and theoretical results, it can be concluded that the operation of adequately oxidised contacts (in a state of degradation) appears to be improved when they are strained for a short time period by current values greater than the nominal ones. This can be attributed to the breakdown of the interfacial layer as impact ionisation occurs, and new paths through metallic spots are created. © IEE, 1996.	en
heal.publisher	IEE-INST ELEC ENG	en
heal.journalName	IEE Proceedings: Science, Measurement and Technology	en
dc.identifier.doi	10.1049/ip-smt:19960127	en
dc.identifier.isi	ISI:A1996UL75700012	en
dc.identifier.volume	143	en
dc.identifier.issue	2	en
dc.identifier.spage	143	en
dc.identifier.epage	146	en