Spatial Evolution of Three-Wave Structure in Shocked Potassium Chloride

E. Zaretsky

doi:10.1063/1.1483519

Spatial Evolution of Three-Wave Structure in Shocked Potassium Chloride

E. Zaretsky

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The response of 100-oriented KCl single crystals having thickness ranged from 0.05 to 5 mm was studied in series of planar impact experiments with impact pressure higher than pressure of KCl transformation from B1 to B2 structure. Special attention was paid to providing the similar velocities of aluminum impactor in all shots. VISAR velocity records were obtained from free sample surface or from sample-PMMA window interface. The recorded velocity profiles have three-wave structure containing elastic El, low-pressure phase Ph1 and high-pressure phase Ph2 waves. The waves amplitudes were found decaying with the propagation time and corresponding relaxation times were found equal to 118, 64 and 136 nsec, respectively. The closeness of the relaxation times of Ph1 and Ph2 waves to the relaxation time of El wave allows us to assume that dislocation motion is responsible of the growth of nuclei of the transforming phase.

Original language	English
Pages (from-to)	217-220
Journal	AIP Conference Proceedings
Volume	620
DOIs	https://doi.org/10.1063/1.1483519
State	Published - 1 Jul 2002

Keywords

High Pressure
Phase Transformations
Potassium Chlorides
Potassium Compounds
Shock Waves
Single Crystals
Solid State
Solid-solid transitions
High-pressure and shock wave effects in solids and liquids

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10.1063/1.1483519

http://adsabs.harvard.edu/abs/2002AIPC..620..217Z

Cite this

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title = "Spatial Evolution of Three-Wave Structure in Shocked Potassium Chloride",

abstract = "The response of 100-oriented KCl single crystals having thickness ranged from 0.05 to 5 mm was studied in series of planar impact experiments with impact pressure higher than pressure of KCl transformation from B1 to B2 structure. Special attention was paid to providing the similar velocities of aluminum impactor in all shots. VISAR velocity records were obtained from free sample surface or from sample-PMMA window interface. The recorded velocity profiles have three-wave structure containing elastic El, low-pressure phase Ph1 and high-pressure phase Ph2 waves. The waves amplitudes were found decaying with the propagation time and corresponding relaxation times were found equal to 118, 64 and 136 nsec, respectively. The closeness of the relaxation times of Ph1 and Ph2 waves to the relaxation time of El wave allows us to assume that dislocation motion is responsible of the growth of nuclei of the transforming phase.",

keywords = "High Pressure, Phase Transformations, Potassium Chlorides, Potassium Compounds, Shock Waves, Single Crystals, Solid State, Solid-solid transitions, High-pressure and shock wave effects in solids and liquids",

author = "E. Zaretsky",

year = "2002",

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doi = "10.1063/1.1483519",

language = "English",

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pages = "217--220",

journal = "AIP Conference Proceedings",

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publisher = "American Institute of Physics",

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TY - JOUR

T1 - Spatial Evolution of Three-Wave Structure in Shocked Potassium Chloride

AU - Zaretsky, E.

PY - 2002/7/1

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N2 - The response of 100-oriented KCl single crystals having thickness ranged from 0.05 to 5 mm was studied in series of planar impact experiments with impact pressure higher than pressure of KCl transformation from B1 to B2 structure. Special attention was paid to providing the similar velocities of aluminum impactor in all shots. VISAR velocity records were obtained from free sample surface or from sample-PMMA window interface. The recorded velocity profiles have three-wave structure containing elastic El, low-pressure phase Ph1 and high-pressure phase Ph2 waves. The waves amplitudes were found decaying with the propagation time and corresponding relaxation times were found equal to 118, 64 and 136 nsec, respectively. The closeness of the relaxation times of Ph1 and Ph2 waves to the relaxation time of El wave allows us to assume that dislocation motion is responsible of the growth of nuclei of the transforming phase.

AB - The response of 100-oriented KCl single crystals having thickness ranged from 0.05 to 5 mm was studied in series of planar impact experiments with impact pressure higher than pressure of KCl transformation from B1 to B2 structure. Special attention was paid to providing the similar velocities of aluminum impactor in all shots. VISAR velocity records were obtained from free sample surface or from sample-PMMA window interface. The recorded velocity profiles have three-wave structure containing elastic El, low-pressure phase Ph1 and high-pressure phase Ph2 waves. The waves amplitudes were found decaying with the propagation time and corresponding relaxation times were found equal to 118, 64 and 136 nsec, respectively. The closeness of the relaxation times of Ph1 and Ph2 waves to the relaxation time of El wave allows us to assume that dislocation motion is responsible of the growth of nuclei of the transforming phase.

KW - High Pressure

KW - Phase Transformations

KW - Potassium Chlorides

KW - Potassium Compounds

KW - Shock Waves

KW - Single Crystals

KW - Solid State

KW - Solid-solid transitions

KW - High-pressure and shock wave effects in solids and liquids

U2 - 10.1063/1.1483519

DO - 10.1063/1.1483519

M3 - Article

SN - 0094-243X

VL - 620

SP - 217

EP - 220

JO - AIP Conference Proceedings

JF - AIP Conference Proceedings

ER -

Spatial Evolution of Three-Wave Structure in Shocked Potassium Chloride

Abstract

Keywords

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