|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Fundamental Aspects and Modeling Powder Metal Synthesis and Processing
||Formation of Nano-lamellar Structure in Ni-Al High-density Energetic Material by Cryomilling
||Minseok Oh, Byungmin Ahn
|On-Site Speaker (Planned)
High-density energetic materials are generally utilized in specific military and civil applications where a high ratio of potential chemical energy output is required. Ni-Al material system was known as an energetic material because of its exothermic reaction during formation of intermetallic compound. The reaction initiation temperature can be lowered when Ni and Al form nano-scale interlamellar structure facilitating the reaction so that the exothermic output can be accomplished with less energy input. In the present study, the nano-lamellar structure of Ni-Al was effectively achieved using cryomilling technique minimizing unnecessary oxidations. The microstructural evolution during cryomilling was investigated in details.