Laboratory for Dynamics of Machines and Structures 
Wear Rate vs Dynamic and Material Properties at Elevated Temperatures for a Copper-Graphite Brush
 A. Turel, J. Slavič and M. Boltežar
Journal of Mechanical Engineering, Volume 64 (3), February 2018, Pages 169-175

download pdf
A copper-graphite brush is used as a sliding part in the electrical contacts of electrical machines and usually operates at elevated temperatures. This experimental research relates the dynamic properties of the copper-graphite brush to its wear rate at elevated temperatures. The dynamic and material properties were researched using a dynamic response analysis, hardness test and differential scanning calorimetry. The results show that there is a key temperature range where the material properties of copper-graphite brush was changed and which reflects on the increases of damping by 15% and hardness decreases by 50 %.

Head of RRC

Aleš Turel, dr.



Janko Slavič, dr.

  Ladisk, Fakulteta za strojništvo, Univerza v Ljubljani
  +386 1 4771 226
jankoslavic     jankoslavic    
Scholar Home Xs


Miha Boltežar, dr.

  Ladisk, Fakulteta za strojništvo, Univerza v Ljubljani
  +386 1 4771 608
Scholar Home Xs