Assertion: metal foam | /r/HasProperty | formed within steel within aluminium
Facets:
value: from hollow beads of one metal
type: OTHER
value: within aluminium
type: LOCATION
Source sentences:
text: Composite metal foam (CMF) is formed from hollow beads of one metal within a solid matrix of another, such as steel within aluminium, show 5 to 6 times greater strength to density ratio and more than 7 times greater energy absorption than previous metal foams.