Speaker
Javier Narciso
(Alicante University)
Description
Carbon-metal matrix composites are a very attractive materials for thermal applications, given their very high
thermal conductivity in at least two planes.
Therefore, in an attempt to obtain a good thermal conducting material as well as a low Coefficient of Thermal
Expansion (CTE), a mixture of reinforcements (graphite and carbon fibre) was infiltrated with liquid alloys.
The role of two reinforcing materials are following: while graphite reinforcement increases thermal
conductivity in the plane direction, the carbon fibre helps to reduce the CTE of the alloy in the same direction.
In the present work, graphite-carbon fibre preforms were infiltrated with Al/Si and Ag/Si alloys by means
of gas pressure to produce an anisotropic composite.
The influence of the volume fraction in the thermal conductivity and CTE was evaluated. The experiments
determined that the manufactured composites has a adequate thermal behaviour to be used as low
cost materials in heat spreaders.
Co-Authors: LOUIS Enrique (Alicante University), MOLINA Jose Miguel (Alicante University), PRIETO Richard (Alicante University).
Author
Javier Narciso
(Alicante University)
Co-authors
Enrique Louis
(Alicante University)
Jose Miguel Molina
(Alicante University)
Richard Prieto
(Alicante University)
