NDLI: Conduction in failing aluminum connections

Content Provider	IEEE Xplore Digital Library
Author	Aronstien, J.
Copyright Year	1978
Abstract	Conduction in failing aluminum contacts was studied using oscilloscope observation of the current-voltage characteristics. Crossed wire and twisted pair contacts are used in these studies. The dual crossed wire configuration permits evaluation of the distribution of the conducting channels. Measurement of contact resistance as normal force is increased shows that there is little metallic contact established through the aluminum oxide by application of normal force alone. Conduction in these aluminum connections is found to be predominantly metallic, however, established and sustained by the electrical breakdown mechanism known as A-fritting. The metallic conductive channels formed by this mechanism deteriorate and open, causing frequent repetition of the breakdown process. The results indicate that there is likely to be only one conducting channel active at a time. Observations made on aluminum-aluminum twisted pair and twist-on connector splices demonstrate that the same mechanism is operative for these connections. The relationship of the results to behavior of failing aluminum connections is discussed.<>
Sponsorship	IEEE Electronic Industries Alliance American Society of Mechanical Engineering (ASME) NBS SAE
Starting Page	170
Ending Page	175
Page Count	6
File Size	517422
File Format	PDF
ISSN	01486411
Volume Number	14
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1991-03-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wire Contacts Force measurement Aluminum oxide Electric breakdown Circuits Temperature Oscilloscopes Connectors Heating
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Electronic, Optical and Magnetic Materials Engineering Electrical and Electronic Engineering

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