Abstract
Metallic foams have been gaining significant interest because of their unique properties. The present study investigates the processing of microscale particles of aluminum–titanium dihydride foaming precursors, together with their foaming characteristics. The external and internal features and dimensions of these precursor particles were found to be highly dependent on the mechanical milling process and the use of a process control agent (methanol) during milling. The effect of the foaming environment on the foaming characteristics was investigated. Foaming in argon was found to yield better foaming characteristics than that in air.