Low temperature system for a large volume multi-anvil press

A new custom-designed system for a 3000 ton multi-anvil press has been developed to reachtemperatures below roomtemperature athigh pressures. The system was designed to remove heat selectively and conductively from the sample volume through six of the eight tungsten carbide (WC) cubes in direct contact with the octahedralpressurecell. The key components of the system includeCu cooling fins sandwiched between neighboring cube faces and the connectedCu heat exchange chamber through which liquid nitrogen flows. Currently, this system enables us to reachtemperatures down to 220 K atpressures up to 8 GPa, but it can be easily modified to retain similar cooling capability at thehighest pressure the press can reach (ca. 25 GPa).

Source: Review of Scientific Instruments - December 6, 2016 Category: Physics Authors: Richard A. Secco and Wenjun Yong Source Type: research