Dynamic diamond anvil cell (dDAC): a novel device for studying the dynamic-pressure properties of materials

William J Evans; Choong-Shik Yoo; Geun Woo Lee; Hyunchae Cynn; Magnus J Lipp; Ken Visbeck

doi:10.1063/1.2751409

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Dynamic diamond anvil cell (dDAC): a novel device for studying the dynamic-pressure properties of materials

Journal article

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Dynamic diamond anvil cell (dDAC): a novel device for studying the dynamic-pressure properties of materials

William J Evans, Choong-Shik Yoo, Geun Woo Lee, Hyunchae Cynn, Magnus J Lipp and Ken Visbeck

Review of scientific instruments, Vol.78(7), pp.073904-073904

07/2007

DOI: https://doi.org/10.1063/1.2751409

Handle:

https://hdl.handle.net/2376/101245

PMID: 17672770

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Abstract

Reproducibility of Results

Hardness Tests - instrumentation

Hardness Tests - methods

Specimen Handling - methods

Materials Testing - instrumentation

Diamond

Hardness

Equipment Design

Pressure

Physical Stimulation - methods

Materials Testing - methods

Specimen Handling - instrumentation

Manometry - instrumentation

Sensitivity and Specificity

Physical Stimulation - instrumentation

Equipment Failure Analysis

Manometry - methods

We have developed a unique device, a dynamic diamond anvil cell (dDAC), which repetitively applies a time-dependent load/pressure profile to a sample. This capability allows studies of the kinetics of phase transitions and metastable phases at compression (strain) rates of up to 500 GPa/s (approximately 0.16 s(-1) for a metal). Our approach adapts electromechanical piezoelectric actuators to a conventional diamond anvil cell design, which enables precise specification and control of a time-dependent applied load/pressure. Existing DAC instrumentation and experimental techniques are easily adapted to the dDAC to measure the properties of a sample under the varying load/pressure conditions. This capability addresses the sparsely studied regime of dynamic phenomena between static research (diamond anvil cells and large volume presses) and dynamic shock-driven experiments (gas guns, explosive, and laser shock). We present an overview of a variety of experimental measurements that can be made with this device.

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Title: Dynamic diamond anvil cell (dDAC): a novel device for studying the dynamic-pressure properties of materials
Creators: William J Evans - H-Division, Physics and Advanced Technologies, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA. wjevans@llnl.gov
Choong-Shik Yoo
Geun Woo Lee
Hyunchae Cynn
Magnus J Lipp
Ken Visbeck
Publication Details: Review of scientific instruments, Vol.78(7), pp.073904-073904
Academic Unit: Institute for Shock Physics
Publisher: United States
Identifiers: 99900546662601842
Language: English
Resource Type: Journal article