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High Pressure Research
An International Journal
Volume 38, 2018 - Issue 1
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Articles

A convenient dynamic loading device for studying kinetics of phase transitions and metastable phases using symmetric diamond anvil cells

Hu ChengBeijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Science, Beijing, People’s Republic of China;State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, People’s Republic of ChinaView further author information
,
Junran ZhangBeijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Science, Beijing, People’s Republic of China;School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, People’s Republic of ChinaView further author information
,
Yanchun LiBeijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Science, Beijing, People’s Republic of ChinaCorrespondence[email protected]
View further author information
,
Gong LiState Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, People’s Republic of ChinaView further author information
,
Xiaodong LiBeijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Science, Beijing, People’s Republic of ChinaView further author information
&
Jing LiuBeijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Science, Beijing, People’s Republic of ChinaView further author information
Pages 32-40 | Received 23 May 2017, Accepted 16 Oct 2017, Published online: 29 Oct 2017
 
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ABSTRACT

We have designed and implemented a novel DLD for controlling pressure and compression/decompression rate. Combined with the use of the symmetric diamond anvil cells (DACs), the DLD adopts three piezo-electric (PE) actuators and three static load screws to remotely control pressure in accurate and consistent manner at room temperature. This device allows us to create different loading mechanisms and frames for a variety of existing and commonly used diamond cells rather than designing specialized or dedicated diamond cells with various drives. The sample pressure compression/decompression rate that we have achieved is up to 58.6/43.3 TPa/s, respectively. The minimum of load time is less than 1 ms. The DLD is a powerful tool for exploring the effects of rapid (de)compression on the structure of materials and the properties of materials.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the National Natural Science Foundation of China [Grant No. 11474280].

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