Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Конференция: Asian Pacific Conference for Fracture and Strength (APCFS'06); Sanya, PEOPLES R CHINA; Sanya, PEOPLES R CHINA
Год издания: 2007
Идентификатор DOI: 10.4028/www.scientific.net/KEM.353-358.886
Ключевые слова: electrical contact, copper matrix composites, electrical endurance, contact resistance, arc erosion
Аннотация: Cp-Nb-Cr/Cu-Cd electrical contact material, which contains 1.7wt.% of Cd, 0.5wt.% of Cp (man-made diamond particles), 2.0 wt.% of Nb and 0.7 wt.% of Cr, was fabricated by powder metallurgy process. The contact material was installed in different ac contactors covering current range from 40 to 630A. While tested under AC-4 electricaПоказать полностьюl load, the electrical contact material was worn out gradually by repeated electrical arc, and microstructure of the arc-affected surface layer changed dramatically. Mechanism of arc erosion process and contact resistance fluctuation was discussed by corresponding microstructure observation and chemical composition analysis of the surface layer. Cp-Nb-Cr/Cu-Cd electrical contact material is capable to be used in 63 similar to 250A ac contactors under AC-4 working conditions.
Журнал: PROGRESSES IN FRACTURE AND STRENGTH OF MATERIALS AND STRUCTURES, 1-4
Выпуск журнала: Vol. 353-358, Part 01.04.2018
Номера страниц: 886-
ISSN журнала: 10139826
Место издания: DURNTEN-ZURICH
Издатель: TRANS TECH PUBLICATIONS LTD