Research objectives and content
The overall goal is attaining a microscopic-molecular level description of friction and lubrication. The study will focus on the characterisation of adsorbed organic monolayer subjected to compression and shear and on the relation between the chemical properties of the adsorbates and their functioning as boundary lubricants.
The research will involve two experimental efforts:
1. Vibrational spectra of monolayers will be measured by Sum Frequency (SF) Spectroscopy. Vibrational spectra should reflect the structural changes within the monolayers following and during the application of compression and shear.
2. The single asperity aspect of friction of the same samples will be studied using Atomic Force Microscopy. Results are expected to shed more light on the relation between wear and adhesion, in particular under varying coverage of the surface.
Trainings content (objective. benefit and expected impact)
Both the subject and methods are novel, hardly studied in Israel and therefor new to me. I plan to return to Israel and implement my knowledge there.
Links with industry / industrial relevance (22)
The technological relevance of this project is widespread. Understanding the microscopic aspect of lubrication by organic monolayers can lead to improve lubricants and anti-wear agents, thus to enourmous economic benefits. While no direct involvement of industry is taking place, Dr Bain's group has long established links with Unilever Research.