Cemented Carbide Heat Sink for Thermal Cracking Resistance

The patent applies composite materials by combining cemented carbide with a thermally conductive material (such as metal matrix composite or ceramic matrix composite) to create a hybrid structure. The cemented carbide provides strength and wear resistance, while the thermally conductive material forms a network structure that dissipates heat, preventing thermal cracking under cyclic thermal conditions.

The patent implements local quality by creating regions with different thermal conductivities within the cemented carbide article. The thermally conductive material is distributed in specific patterns (interconnected network, layers, or zones) to locally manage heat flow, allowing critical areas to dissipate heat more effectively while maintaining overall structural integrity.

The patent merges the heat sink function directly into the cemented carbide article by integrating the thermally conductive material during manufacturing. This combination creates a unified structure where the thermally conductive phase is embedded within or alongside the cemented carbide, eliminating the need for separate heat sink components and reducing overall device complexity.

The thermally conductive material serves multiple functions simultaneously: it acts as a heat dissipation pathway, provides structural support, and enhances thermal stability. This multi-functionality reduces the need for additional components, as the same material phase contributes to both thermal management and mechanical integrity.