Title :
Modeling of elastic and thermophysical properties of MMC heat sinks with given orientation distribution of the fibers
Author :
Pettermann, H.E.
Author_Institution :
Div. of Mater. Technol., Austrian Res. Centre, Seibersdorf, Austria
Abstract :
The analytical, micro-mechanics based Mori-Tanaka approach in a multi-phase formulation is used to investigate the effective properties of heterogeneous materials. The thermal conductivity as well as the thermal expansion and the elastic behavior of metal matrix composites are predicted. To obtain material properties suitable for heat sink applications a two-dimensional random fiber orientation distribution is considered. A short review of the method is given and, as an example, a metal matrix composites with short carbon fibers embedded in a copper matrix is presented. The results obtained by the Mori-Tanaka method are discussed and an overview of possible applications of the approach is given
Keywords :
carbon fibre reinforced composites; heat sinks; micromechanics; thermal conductivity; thermal expansion; C-Cu; Mori-Tanaka model; elastic properties; heat sink; heterogeneous material; metal matrix composite; micromechanics; thermal conductivity; thermal expansion; thermophysical properties; two-dimensional random fiber orientation distribution; Capacitive sensors; Composite materials; Conducting materials; Elasticity; Heat sinks; Tensile stress; Thermal conductivity; Thermal expansion; Thermal management; Thermal stresses;
Conference_Titel :
Semiconductor Thermal Measurement and Management Symposium, 2000. Sixteenth Annual IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
0-7803-5916-X
DOI :
10.1109/STHERM.2000.837089
