Preparation, electrical contact performance and arc-erosion behavior of Cu/La2NiO4 composites

DOI

10.2991/ic3me-15.2015.294How to use a DOI?

Keywords

Cu matrix composites, La2NiO4 ceramics, Contacts, Electrical properties, Arc erosion

Abstract

La2NiO4 conductive particles were incorporated into Cu matrix for enhanced electrical contact performance, while their effect on the arc erosion behavior of contacts was investigated. The results indicate that the particles in the hot-pressed Cu/La2NiO4 composites accelerate the separation of oxide scales from contact surface during arc erosion cycling, suggested by increased mass loss of roughly 3 to 9 times larger than pure Cu. Thus, the growth of oxide scales on contact surface was blocked by a self-cleaning-like function. As a result, the contact resistance declines to 21.6 m after 5000 cycles, in contrast with 29.5 m for Cu, and correspondingly the temperature rise degrades about 30.7%.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Yongli Guo
AU  - Zhibin Zhou
AU  - Yaping Wang
PY  - 2015/08
DA  - 2015/08
TI  - Preparation, electrical contact performance and arc-erosion behavior of Cu/La2NiO4 composites
BT  - Proceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering
PB  - Atlantis Press
SP  - 1532
EP  - 1536
SN  - 2352-5401
UR  - https://doi.org/10.2991/ic3me-15.2015.294
DO  - 10.2991/ic3me-15.2015.294
ID  - Guo2015/08
ER  -