The 4th International Conference on Matter and Radiation at Extremes (ICMRE 2019)

557 / 2019-03-20 17:00:41

A convenient dynamic loading device based on symmetric diamond anvil cells

Symmetric diamond anvil cells; dynamic loading device; piezo-electric; actuators

Plenary track > High Pressure Physics and Materials Science

We have designed and implemented a novel DLD for controlling pressure and compression/decompression rate. The DLD is based on the design of the symmetric diamond anvil cells (DACs), which 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 45 TPa/s. 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.