Composite metal foam durable against heat has high strength-to-weight ratio; applications include car engines, aerospace, nuclear containment

https://www.eurekalert.org/news-releases/1101019

"withstands repeated heavy loads even at 400 to 600°C... foam: hollow spheres of stainless steel, nickel, or other metals/ alloys embedded in metallic matrix... absorbs compressive forces... better heat insulation than conventional metals/ alloys... jet engine vane/ ducts/ exhaust flaps, turbine blades, hypersonic vehicle airframes/ hot trailing wing edges, gas/ steam turbines, car brakes, nuclear reactor fuel cladding, storing/ transporting nuclear material, hazardous materials, explosives, vehicle armor, body armor."