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March 2021

This image is an underside surface of an overhang from a 3D-printed NiTi part that is then chemically etched by aqueous sodium fluoride for 1 hour at 40C. This image was taken on the Tescan Vega at 1000x with secondary electrons and 15mm working distance. This image is courtesy of Jacob Mingear (Dr. Darren Hartl, MSEN), and the sample is courtesy of Bing Zhang (Dr. Alaa Elwany, ISEN).