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Ejecta particle size distributions for shock loaded sn and al metals.

DE2001783331

Publication Date	2001
Personal Author	Sorenson, D. S.; Minich, R. W.
Page Count	5
Abstract	When a shock wave interacts at the surface of a metal sample 'ejected matter' (ejecta) can be emitted from the surface. The mass, size, shape and velocity of the ejecta varies depending on the initial shock conditions and the material properties of the target. To understand this phenomena, experiments have been conducted at the Pegasus Pulsed Power Facility (PPPF) located at Los Alamos National Laboratory (LANL). The facility is used to implode cylinders to velocities of many mm/usec. The driving cylinder impacts a smaller target cylinder where shock waves of a few hundreds of kilobars can be reached and ejecta formation proceeds. The ejecta particle sizes are measured for shock loaded Sn and Al metal samples using an in-line Fraunhofer holography technique. The distributions will be compared to calculations from 3 and 2 dimensional percolation theory.
Keywords	Particle size Metals Aluminum Tin Impact shock Combustion products Shock waves
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	71N - Nonferrous Metals & Alloys
Corporate Authors	Los Alamos National Lab., NM.; Department of Energy, Washington, DC.
Document Type	Conference Proceedings
NTIS Issue Number	200210
Contract Number	W-7405-ENG-36

Ejecta particle size distributions for shock loaded sn and al metals.

Ejecta particle size distributions for shock loaded sn and al metals.
DE2001783331

Publication Date	2001
Personal Author	Sorenson, D. S.; Minich, R. W.
Page Count	5
Abstract	When a shock wave interacts at the surface of a metal sample 'ejected matter' (ejecta) can be emitted from the surface. The mass, size, shape and velocity of the ejecta varies depending on the initial shock conditions and the material properties of the target. To understand this phenomena, experiments have been conducted at the Pegasus Pulsed Power Facility (PPPF) located at Los Alamos National Laboratory (LANL). The facility is used to implode cylinders to velocities of many mm/usec. The driving cylinder impacts a smaller target cylinder where shock waves of a few hundreds of kilobars can be reached and ejecta formation proceeds. The ejecta particle sizes are measured for shock loaded Sn and Al metal samples using an in-line Fraunhofer holography technique. The distributions will be compared to calculations from 3 and 2 dimensional percolation theory.
Keywords	Particle size Metals Aluminum Tin Impact shock Combustion products Shock waves
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	71N - Nonferrous Metals & Alloys
Corporate Authors	Los Alamos National Lab., NM.; Department of Energy, Washington, DC.
Document Type	Conference Proceedings
NTIS Issue Number	200210
Contract Number	W-7405-ENG-36