Abstract
Al/SiC metal-matrix composites were investigated through Differential Thermal Analysis device as a function of volume fraction of SiC particles and sample temperature ranging 273 K to 373 K. It was found that electrical resistivity increased with increasing sample temperature and volume fraction of SiC. In contrast to electrical resistivity, electrical conductivity decreased with increasing sample temperature and volume fraction of SiC. Electrical conductivity decreased from 1,8x107 1/ohm.m to 2x106 1/ohm.m as the volume fraction of SiC increased to 60%. On the other hand, thermal conductivity decreased with increasing volume fraction of SiC particles, while being almost insensitive to temperature change between 273 K to 373 K. Thermal conductivity decreased from 120 W/mK to 10 W/mK as the volume fraction of SiC increased to 60%.
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