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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Pang-Kai Lee |
| Copyright Year | 1978 |
| Abstract | The preparation and testing of an electrical contact material, metal-solid lubricant coated copper wires for fabrication of multielement high current brushes, are described. The composite coating consisted of a metal, copper or silver, and an overall 1-5 weight percent (wt %) of a fine solid lubricant powder (graphite, WS 2, or WSe2) evenly dispersed and well oriented in the metal matrix. The coatings were obtained by an electrolytic codeposition technique. By sliding a bundle of the coated wires against a rotating silver or copper slip ring at constant speed of 16.75 m/s, the sliding characteristics-- contact voltage drop and friction of the testing system-were measured as a function of current density up to 12.4 MA/m2in several different gas environments. Several brush life tests were made at 12.4 MA/m 2. Results indicate that the coated wire possesses high currentcarrying capability under a wide range of environmental conditions. The tests also showed that vapor lubrication is applicable to all solid lubricants with lameilar structure for reduction of wear rate. A tribochemical background of the sliding system is discussed. |
| Sponsorship | IEEE Electronic Industries Alliance American Society of Mechanical Engineering (ASME) NBS SAE |
| Starting Page | 114 |
| Ending Page | 121 |
| Page Count | 8 |
| File Size | 1384004 |
| File Format | |
| ISSN | 01486411 |
| Volume Number | 4 |
| Issue Number | 1 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1981-03-01 |
| Publisher Place | U.S.A. |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Brushes Inorganic materials Solids Lubricants Wires Copper Coatings Silver Materials testing Contacts |
| 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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