Machine Design

Cool Composites

Stainless-steel cooling tubes, or heatexchanger cavities are part of a new AlSiC (aluminum silicon carbide) metalmatrix composite.

The patent-pending composites outfitted with cooling tubes improve thermal performance of components as small as microprocessor lids to products as large as IGBT cooler bases. Stainless-steel cooling tubes are preferred for high-purity water systems. Additionally, unlike traditional packaging materials, AlSiC's isotropic CTE (coefficient of thermal expansion) can be tweaked for specific applications by modifying the Al-metal/SiC-particulate ratio. The composite also has a high thermal conductivity for efficient heat dissipation.

CPS Corp., 111 S Worcester St., Chartley, MA 02712, (508) 222-0614,

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