Ultra-lightweight, high-strength metal matrix composite maintains its performance even at high temperatures up to 500°C

https://techxplore.com/news/2025-11-ultra-strong-lightweight-metal-composite.html

"mimics reinforced concrete's microscopic structure... 3D metal printing/ micro-casting combination... rebar: titanium alloy microscopic mesh struts created using lasers to heat metal powders... space between struts filled with aluminum, silicon, magnesium using micro-casting... embedded µm-sized alumina particles/ silicon nanoprecipitates further strengthens... performance comparable to medium-range steels but at only third of weight... high-temperature resistance due to enhanced twinning,.. future: lower cost, for scalability"