Laser Interferometer Measurements of Refractive Index in Shock-Compressed Materials

Wise, J.L.; Chhabildas, L.C.

doi:10.1007/978-1-4613-2207-8_63

Cited by 107 publications

(57 citation statements)

References 15 publications

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“…Changing the particle velocity by only 1% or less is enough to bring all three methods into perfect agreement for the experiments performed here. While the correction factor for LiF determined by Wise and Chhabildas [25] is the generally accepted value (and the one used here), only three experiments were done in that work in the same stress range as the experiments performed here. Thus, it is possible that at these stresses, an error in the window correction -which is the dominant source of error in VISAR measurements [23] -could be contributing to the shift in the data to higher values than expected.…”

Section: Figurementioning

confidence: 99%

Sound speed measurements in tantalum using the front surface impact technique

Rigg

Scharff

Hixson

2014

J. Phys.: Conf. Ser.

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Section: Figurementioning

confidence: 99%

Sound speed measurements in tantalum using the front surface impact technique

Rigg

Scharff

Hixson

2014

J. Phys.: Conf. Ser.

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“…Their optical properties in the pressure-temperature regime accessed in these experiments have been well studied and are summarized in [15].…”

Section: Near-equilibrium Polymorphic Phase Transformations In Praseomentioning

confidence: 99%

Near-equilibrium polymorphic phase transformations in praseodymium under dynamic compression

Bastea

Reisman

2007

Applied Physics Letters

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The authors report the first experimental observation of sequential, multiple polymorphic phase transformations occurring in praseodymium dynamically compressed using a ramp wave. The experiments also display the signatures of reverse transformations occurring upon pressure release and reveal the presence of small hysteresis loops. The results are in very good agreement with equilibrium hydrodynamic calculations performed using a thermodynamically consistent, multiphase equation of state for praseodymium, suggesting a near-equilibrium transformation behavior.

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“…This is accomplished by using graded-density impactors [6][7]151. When this graded-density material is used to impact a flier-plate in a modified two-stage light gas gun, as enhanced by using the experimental configuration described in Figure 1 (b) to allow the launching of titanium and aluminum plates to velocities approaching 16 km/s [16,19]. The experimental design shown in Figure lfb) acts as a dynamic acceleration reservoir which further enhances the flier plate velocity [16].…”

Section: Basic Operationmentioning

confidence: 99%

Time-resolved particle velocity measurements at impact velocities of 10 km/s

Furnish

Chhabildas

Reinhart

1999

International Journal of Impact Engineering

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SUN 3 0 1998Albuquerque, NM 871 85-1 18 1 Hypervelocity launch capabilities (9 -16 M s ) with macroscopic plates have become available in recent years. It is now feasible to conduct instrumented plane-wave tests using this capability. Successfully conducting such tests requires a planar launch and impact at hypervelocities, appropriate triggering' for recording systems, and time-resolved measurements of motion or stress at a particular point or set of points within the target or projectile during impact. We have conducted the first time-resolved wave-profile experiments using velocity interferometric techniques at impact velocities of 10 Ms. These measurements show that aluminum continues to exhibit normal release behavior to 16 1 GPa shock pressure, with complete loss of strength of the shocked state. These experiments have allowed a determination of shock-wave window transparency in conditions produced by a hypervelocity impact. In particular, lithiup fluoride appears to lose transparency at a shock stress of 200 GPa; this appears to be the upper limit for conventional wave profile measurements using velocity interferometric M

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Laser Interferometer Measurements of Refractive Index in Shock-Compressed Materials

Cited by 107 publications

References 15 publications

Sound speed measurements in tantalum using the front surface impact technique

Sound speed measurements in tantalum using the front surface impact technique

Near-equilibrium polymorphic phase transformations in praseodymium under dynamic compression

Time-resolved particle velocity measurements at impact velocities of 10 km/s

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