Atomic Force Microscope (AFM) shows its true potential when inspecting the tribological response of the single junction in nanoscale contact dynamics, allowing the AFM to investigate atom-to-atom interactions. However, there are possibilities where water meniscus could occur around the tip due to capillary condensation, which introduces an ultra-low friction state; such a phenomenon is also known as superlubricity. This induces a spike in load, which leads to an inconsistent friction profile, thus resulting in a poor-quality image. In this session, I will present my recent observations on the dissolution and build-up of ionic minerals (KCl) while submerged in ionic liquid, as well as the comparison of friction dynamics with different types of ionic liquid.
Dennis (Donggun) received his integrated master’s degree in Materials Science and Engineering (Industrial Management) with 1st Class Honours at The University of Sheffield (UK) in 2020. His thesis was based on ‘Tribocorrosion testing of low-temperature triode plasma nitrided (TPN) alloys for biomedical applications’ under the supervision of Dr. Adrian Leyland.
In December 2020, he continued as a PhD student in Otto-Schott Institute of Materials Research at the University of Jena (Germany) under Prof. Dr. Enrico Gnecco’s guidance on ‘Nanotribology in Liquid’. He is investigating the influence of solvents on nanoscale friction at the sliding contact with an Atomic Force Microscope. Dennis joined our chair in TU Dresden to continue the project he began while back in Jena.
Atomic Force Microscope (AFM) shows its true potential when inspecting the tribological response of the single junction in nanoscale contact dynamics, allowing the AFM to investigate atom-to-atom interactions. However, there are possibilities where water meniscus could occur around the tip due to capillary condensation, which introduces an ultra-low friction state; such a phenomenon is also known as superlubricity. This induces a spike in load, which leads to an inconsistent friction profile, thus resulting in a poor-quality image. In this session, I will present my recent observations on the dissolution and build-up of ionic minerals (KCl) while submerged in ionic liquid, as well as the comparison of friction dynamics with different types of ionic liquid.
Dennis (Donggun) received his integrated master’s degree in Materials Science and Engineering (Industrial Management) with 1st Class Honours at The University of Sheffield (UK) in 2020. His thesis was based on ‘Tribocorrosion testing of low-temperature triode plasma nitrided (TPN) alloys for biomedical applications’ under the supervision of Dr. Adrian Leyland.
In December 2020, he continued as a PhD student in Otto-Schott Institute of Materials Research at the University of Jena (Germany) under Prof. Dr. Enrico Gnecco’s guidance on ‘Nanotribology in Liquid’. He is investigating the influence of solvents on nanoscale friction at the sliding contact with an Atomic Force Microscope. Dennis joined our chair in TU Dresden to continue the project he began while back in Jena.
