SMRTR Science & EngineeringSep 3, 2026Interesting Engineering

Hypersonics: 3D-printed heatsink to cut cooling size and weight by over 50%

SMRTR summary

Johns Hopkins APL's SPEAR heatsink uses 3D-printed phase-change materials to absorb intense heat bursts, reducing size and weight by over 50% compared to traditional designs—ideal for hypersonic vehicles, spacecraft, and defense electronics.

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