Back to Search
Start Over
Comparison of dry sliding behavior and wear mechanism of low metallic and copper-free brake pads.
- Source :
-
Tribology International . Nov2020, Vol. 151, pN.PAG-N.PAG. 1p. - Publication Year :
- 2020
-
Abstract
- Rising environmental concerns and implementing restrictions on the use of copper in friction materials (FM) make it mandatory for manufacturers to look for a reliable replacement. Two commercial pads: 1) low metallic FM contains 7 wt.% copper fibers and 2) low metallic FM contains thermal graphite (TG), and cellulose fibers as replacements for copper were studied. The two FMs showed almost identical thermal behavior. However, Cu-contained FM exhibited a bit more thermal stability. The fade ratio and recovery ratio in the first fade and recovery stages showed almost the same values. Moreover, in the second fade, change from 86% to 78% and second recovery change from 90% to 77%, respectively, for Cu-contained and Cu-Free FMs. • The frictional behavior of a copper-free and low-met commercialize friction composites is investigated. • As substitutions for copper, thermo-graphite and cellulose fiber were used. • Cellulose fiber at elevated temperature act as a pore generator leads to an improvement in fade resistance. • Graphite and wear debris in C7 facilitate the formation of secondary contact plateaus. • Both low-metallic and copper-free materials can be interchangeably used based on restrictions, code compliance, and economic issues. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0301679X
- Volume :
- 151
- Database :
- Academic Search Index
- Journal :
- Tribology International
- Publication Type :
- Academic Journal
- Accession number :
- 146361472
- Full Text :
- https://doi.org/10.1016/j.triboint.2020.106416