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37 Microscopy and Characterization Suite Gatan model 682 precision etching and coating system Three penning ion guns with miniature rare earth magnets Ion beam energy ranges from 1 kV to 10 kV Ion current density for etch gun is up to 3 mAcm2 and for coating gun is up to 10 mAcm2 each Etched area ranges from 7 to 10 mm depending on gun energy Coating area is uniform over a 1 inch diameter Standard coating materials are C Cr Pt Pd Au Accepts 1.25 metallographic mounts and most SEM stubs. Specimen preparation equipment Pace Technologies Giga 0900 Vibratory Polishers Beuhler MiniMet 1000 Polisher-Grinder Buehler IsoMet Low Speed Saws Anatech Hummer sputtering system Other available equipment Thermal Technology High Temperature Vacuum Furnace Thermal Technology High Temperature Vacuum Furnace Carver 3853.0H4 Press Microlux Variable Speed Miniature Drill Press Motic Digital Optical Microscope Example of nanohardness data acquired on surrogate TRISO fuel right figure. The locations of the indentations are indicated in the TRISO particle micrograph left figure. Taken from P. Hose- mann J. N. Martos D. Frazer G. Vasudevamurthy T.S. Byun J.D. Hunn B.C. Jolly K. Terrani and M. Okuniewski Journal of Nuclear Materials 442 2013 133-142.