Applied physics. Why thick can be slick.


A main impediment to the development and commercialization of microand nanoelectromechanical systems has been the diffi culty in effectively lubricating the small-scale moving parts. Greasing the sliding interfaces in the usual way, with liquids, fails because they are readily squeezed out of the contact region. The resulting friction and wear have… (More)
DOI: 10.1126/science.1188086