Dresden 2026 – scientific programme

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MM: Fachverband Metall- und Materialphysik

MM 32: Topical Session: Advanced Nanomechanics – Accelerating Materials Physics from the Bottom I

MM 32.4: Topical Talk

Thursday, March 12, 2026, 11:45–12:15, SCH/A251

Additive Manufacturing and Nanomechancics - where is the Link? — •Ralph Spolenak — Laboratory for Nanometallurgy, Department of Materials, ETH Zurich, Switzerland

While size effects in mechanical properties of metals created by whisker growth and thin films had been known since the 1950s, the introduction of micro- and nanoscale subtractive manufacturing (also known as focused ion beam milling) became a game changer as it allowed to study size effects practically independent of the material and its microstructure. The contribution will focus on additive micro- and nanoscale manufacturing with voxel sizes down to 30 nm and how both the manufacturing process (with regards to microstructure control and chemistry) as well as the dimension influences mechanical properties. Comparison will be made to sputter deposited materials including self-organized microstructure, such as nanoporosity by dealloying or local pore formation by Kirkendall voiding, as well as nanostructured reactive multilayers. Finally, the potential combination of subtractive and additive processes will be discussed.

Keywords: Nanomechanics; Nanoscale additive manufacturing; Alloying; Nanoporosity