Composite metal foam strong/ durable like steel, lightweight like aluminum, highly resistant to ballistic impacts, fire, and radiation

https://www.impactlab.com/2025/02/25/composite-metal-foam-a-breakthrough-material-ready-for-mass-production/#more-167050

"low density: air bubbles embedded in alloy of steel, titanium, aluminum, other... absorbs 72-75% of kinetic energy from ball rounds/ 68-78% from armor-piercing rounds... <50% weight of rolled homogeneous steel armor needed to achieve same protection... exposed to 1472°F flame, takes 2X longer reaching same temperature as stainless steel... X, gamma, neutron radiation shielding... space exploration, shipping nuclear waste/ explosives/ hazardous materials, military/ security, cars, buses, trains... full-scale production-ready"

Related:

Superelastic alloy that functions in extreme temperatures could aid space exploration
https://techxplore.com/news/2025-02-superelastic-alloy-functions-extreme-temperatures.html#google_vignette

Nanoscale tweaks help alloy withstand high-speed impacts
https://techxplore.com/news/2025-03-nanoscale-tweaks-alloy-high-impacts.html