| Autor: |
Lei Su, Kaiyuan Shi, Li Zhang, Yanlong Wang, Guoqiang Yang |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Matter and Radiation at Extremes, Vol 7, Iss 1, Pp 018401-018401-8 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2468-080X |
| DOI: |
10.1063/5.0061583 |
| Popis: |
A novel bidirectional remotely controlled device for static and dynamic compression/decompression using diamond anvil cells (DACs) has been developed that can control pressure in an accurate and consistent manner. Electromechanical piezoelectric actuators are applied to a conventional DAC, allowing applications under a variety of pressure conditions. Using this static and dynamic DAC (s-dDAC), it is possible to addresses the poorly studied experimental regime lying between purely static and purely dynamic studies. The s-dDAC, driven by three piezoelectric actuators, can be combined with a time-resolved spectral measurement system and high-speed imaging device to study the structural changes, chemical reactions, and properties of materials under extreme conditions. The maximum compression/decompression rate or pressure range highly depends on the culet size of the anvil, and a higher compression rate and wider pressure range can be realized in a DAC with smaller anvil culet. With our s-dDAC, we have been able to achieve the highest compression rate to date with a 300 μm culet anvil: 48 TPa/s. An overview of a variety of experimental measurements possible with our device is presented. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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