Fig. 1: Cryogenic-transfer capability overview.
a the overview of the cryogenic transfer-APT system and components including an optical image of the electropolished FeCrNi needle sample, photographs of the PFIB, a LEAP 6000 XR instrument with an ultra-high vacuum cryogenic transfer suitcase (UHVCTS), and N2-glovebox with Ferrovac extension kit and schematic of D-charging set up. Detailed photographs of individual parts of the cryogenic transfer system: b Ferrovac extension kit connected to N2-glovebox c the cryogenic load lock inside the glove box with a receptacle elevator d the receptacle base and support tool used to load APT samples into the receptacle elevator e an APT sample puck with an FeCrNi needle sample sitting on the receptacle base f the puck manipulator used to transfer the APT puck with pre-loaded electropolished FeCrNi wire to the electrochemical charging station inside the N2 glovebox g The electrochemical charging set up with inverted APT puck as working electrode as well as Pt counter electrode (CE) and Ag/AgCl reference electrode (RE) h The 360° rotation cryogenic stage in the PFIB i UHVCTS connected to the LEAP 6000 XR load lock j APT sample puck loaded on to a pre-cooled piggyback puck.
