---
title: Metal Foam
type: technology
url: "https://www.envisioning.com/research/forge/metal-foam"
hub: forge
summary: Porous metallic structures that combine low density with high surface area for thermal and structural applications
---

# Metal Foam

Porous metallic structures that combine low density with high surface area for thermal and structural applications
- Technology Readiness Level: 6/9
- Impact: 4/5
- Investment: 4/5
Metal foams combine low density with high surface area; applications include lightweight structures, thermal management, and space colonies or floating cities. Research and limited commercialization; challenges include cost and reproducibility.

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Source: Envisioning — Technology Research Institute (https://www.envisioning.com/research/forge/metal-foam)