Time-resolved shock compression of porous rutile: Wave dispersion in porous solids

Conference · Sun Jul 10 04:00:00 EDT 1994 · AIP Conference Proceedings (American Institute of Physics); (United States)

DOI:https://doi.org/10.1063/1.46300· OSTI ID:6977365

Anderson, M U; Graham, R A; Holman, G T ^[1]

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1. Sandia National Laboratories, Albuquerque, New Mexico 87185-5800 (United States)

Rutile (TiO[sub 2]) samples at 60% of solid density have been shock-loaded from 0.21 to 6.1 GPa with sample thickness of 4 mm and studied with the PVDF piezoelectric polymer stress-rate gauge. The technique uses a copper capsule to contain the sample which has PVDF gauge packages in direct contact with the front and rear surfaces. A precise measure is made of the compressive stress wave velocity through the sample, as well as the input and propagated shock stress. The initial density is known from the sample preparation process, and the amount of shock-compression is calculated from the measurement of shock velocity and input stress. Shock states and re-shock states are measured. The observed data are consistent with previously published high pressure data. It is observed that rutile has a crush strength'' near 6 GPa. Propagated stress-pulse rise times vary from 234 to 916 nsec. Propagated stress-pulse rise times of shock-compressed HMX, 2Al+Fe[sub 2]O[sub 3], 3Ni+Al, and 5Ti+3Si are presented. [copyright] 1994 American Institute of Physics

• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6977365
• Report Number(s): CONF-921145--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 309:1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
COMPRESSION
DENSITY
DISPERSION RELATIONS
MATERIALS
MINERALS
OXIDE MINERALS
PHYSICAL PROPERTIES
POROUS MATERIALS
RADIOACTIVE MATERIALS
RADIOACTIVE MINERALS
RUTILE
SHOCK WAVES
STRESSES
TIME DEPENDENCE
VERY HIGH PRESSURE