NDLI: Carbon, Graphite, and Contacts

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Carbon, Graphite, and Contacts

Content Provider	IEEE Xplore Digital Library
Author	Shobert II, E.
Copyright Year	1971
Abstract	The "black art" of carbon and graphite technology is yielding to the science of materials and applications. This review represents the present state of this art; and since carbon, graphite, and contacts come together in so many different ways and in so many important ways, it is reasonable to discuss them in this context. From the developments in this field have come materials which have made possible such applications as electric arc steel furnaces, jet aircraft engines, high altitude aircraft, inexpensive appliances, aluminum reduction pots, electric machines, electric traction, and many other uses. The purpose is to discuss the fundamental physical processes involved in sliding conduction, friction, and the electric arc, and the roles that carbon and graphite play. To put this together, we will first discuss the pertinent properties of carbon (1), then the physical and chemical effects involved in contact drop, mechanics, friction, temperatures, the electric arc, commutation, and wear (2). The principles are similar for both electrical and mechanical sliding contacts, that is, for brushes and for seals and brakes, so all will be included. Furthermore, in a suitable application, all of the applicable phenomena must be coordinated and within practical operating limits. In most applications, many of'the phenomena are interdependent in that they influence each other and are all influenced by the ambient conditions surrounding the ap- plication.
Starting Page	62
Ending Page	74
Page Count	13
File Size	1902049
File Format	PDF
ISSN	03611000
Volume Number	12
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1976-03-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Art Aircraft propulsion Friction Contacts Materials science and technology Organic materials Aerospace materials Building materials Conducting materials Steel
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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