Diamond TPMS with SLM-Fabricated CuCrZr

Diamond TPMS with SLM-Fabricated CuCrZr 

Diamond Triply Periodic Minimal Surface (TPMS) structures represent a new class of high-performance heat sink architectures that outperform conventional fin designs. Characterized by continuous, zero-curvature surfaces and fully interconnected channels, Diamond TPMS provides exceptionally high specific surface area and promotes strong fluid mixing. This enhances convective heat transfer by continuously disrupting the thermal boundary layer while maintaining uniform temperature distribution.

When combined with Selective Laser Melting (SLM), these complex geometries can be precisely fabricated using CuCrZr alloy—a material known for its high thermal conductivity, mechanical strength, and thermal stability. SLM enables accurate reproduction of thin-walled (sheet-based) TPMS structures that are otherwise impossible to manufacture using traditional methods.

Performance is strongly influenced by volume fraction (porosity). Increasing relative density improves heat transfer due to greater surface interaction and intensified turbulence, but also raises pressure drop. An optimal balance is typically achieved around ~50% porosity, where thermal performance is maximized without excessive flow resistance.

Overall, the integration of Diamond TPMS design with SLM-processed CuCrZr offers a powerful pathway for next-generation thermal management solutions in high-power electronics, aerospace systems, and advanced energy applications.

TPMS:Triply Periodic Minimal Surface