Source:http://linkedlifedata.com/resource/pubmed/id/17672770
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
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pubmed:dateCreated |
2007-8-3
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pubmed:abstractText |
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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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0034-6748
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
78
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
073904
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pubmed:meshHeading |
pubmed-meshheading:17672770-Diamond,
pubmed-meshheading:17672770-Equipment Design,
pubmed-meshheading:17672770-Equipment Failure Analysis,
pubmed-meshheading:17672770-Hardness,
pubmed-meshheading:17672770-Hardness Tests,
pubmed-meshheading:17672770-Manometry,
pubmed-meshheading:17672770-Materials Testing,
pubmed-meshheading:17672770-Physical Stimulation,
pubmed-meshheading:17672770-Pressure,
pubmed-meshheading:17672770-Reproducibility of Results,
pubmed-meshheading:17672770-Sensitivity and Specificity,
pubmed-meshheading:17672770-Specimen Handling
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pubmed:year |
2007
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pubmed:articleTitle |
Dynamic diamond anvil cell (dDAC): a novel device for studying the dynamic-pressure properties of materials.
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pubmed:affiliation |
H-Division, Physics and Advanced Technologies, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA. wjevans@llnl.gov
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't,
Evaluation Studies
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