Tungsten copper (WCu) heat sinks are renowned for their unique combination of properties, making them indispensable in high-performance electronic and thermal management applications. One critical aspect influencing their performance is the Coefficient of Thermal Expansion (CTE). CTE measures the rate at which a material expands or contracts with temperature changes. The CTE of tungsten copper significantly impacts its performance in different environments, affecting thermal management efficiency, structural integrity, and reliability. Tungsten copper heat sinks are used in environments where temperature…