Dynamic compaction of Ni and Al micron powder blends in cylindrical recovery scheme

30th International Conference on Interaction of Intense Energy Fluxes with Matter

Ananev, S.Yu.^1,2 ; Deribas, A.A.^3 ; Drozdov, A.A.^3 ; Dolgoborodov, A.Yu.^2 ; Morozov, A.E.^3 ; Povarova, K.B.^3 ; Yankovsky, B.D.^2

Moscow Institute of Physics and Technology, Institutskiy Pereulok 9, Dolgoprudny, Moscow Region

141700, Russia^1

Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13, Moscow

125412, Russia^2

Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninsky Avenue 49, Moscow

119991, Russia^3

关键词: Dynamic compaction;    Dynamic pressures;    Explosive compactions;    Powder blends;    Pressure waves;    Recovery scheme;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/653/1/012037/pdf
DOI  :  10.1088/1742-6596/653/1/012037

来源: IOP

【 摘 要 】

The experiments on explosive compaction of Ni and Al micron powders mixtures in cylindrical recovery assemblies are reported. Synthesized NiAl compacts were characterized by optical microscopy and x-ray diffraction. The found porosity of the compacts was decreasing with dynamic pressure growth. The geometry of dendrite NiAl grains was associated with the dynamics of pressure waves inside the assembly.