Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
The effect of graphite addition on the mechanical and tribological properties of pitch-based granular carbon composites
Year:2008
Research Areas
  • Materials
Information
Abstract
The present work deals with the effect of graphite addition on selected mechanical and tribological properties of pitch-based granular carbon composites. Three pitches (a commercial impregnating coal tar pitch, an air-blown pitch and a thermally treated coal tar pitch) and anthracite particles as reinforcing material were used to prepare carbon composites to be tested as carbon brake pads. These carbon composites show good compression strength (from 25.8 to 94.2 MPa) but unstable and high friction coefficients (>0.5). Experimental results have showed that small amounts of graphite addition (2.5 and 5.0 wt%) lead to carbon materials with more stable and lower friction coefficient (<0.3). So, graphite addition promoted the reduction in the wear rate. Finally, compressive strength of carbon composites prepared with modified pitches significantly increases after addition of small amounts of graphite with values from 94 to 128.8 MPa.
International
Si
JCR
Si
Title
JOURNAL OF MATERIALS SCIENCE
ISBN
0022-2461
Impact factor JCR
1,081
Impact info
Volume
43
Journal number
13
From page
4541
To page
4549
Month
ABRIL
Ranking
Participants
  • Participante: M. Granda (Instituto del Carbón (CSIC))
  • Participante: R. Santamaria (Instituto del Carbón. CSIC)
  • Autor: Ana Maria Mendez Lazaro (UPM)
  • Participante: R. Menéndez (Instituto del Carbón (CSIC))
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Valorización de Recursos
  • Departamento: Ingeniería de Materiales
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)