AFM cantilevers with spherical tip of millimeter size
Marcin Michałowski , Sergiusz Łuczak
AbstractThe fabrication and application of a new type of cantilever for Atomic Force Microscope are presented. The beams of the cantilevers are made from a thin sheet of beryllium copper, featuring a bending stiffness in a wide range of 2 to 1,900 N/m, onto which a ball is cemented, whose diameter can be in the range of 0.1 to 1 mm. The basic properties of the cantilevers (longitudinal and torsional rigidity, tip diameter and material) can be easily changed. The cost of fabricating the cantilevers is considerably lower compared to their commercial counterparts, whereas their quality is approximately the same. Using these cantilevers, it is possible to perform measurements of the tribological properties of material pairs such as steel-molybdenum disulfide (MoS2), steel-lead (Pb) and polymer-polymer. The larger radius of the cantilever tip also enables measurements of viscosity, and decreases the contact pressure, which is crucial in measurements of biological samples.
|Journal series||Journal of Micromechanics and Microengineering, ISSN 0960-1317|
|Publication size in sheets||0.5|
|Keywords in English||Atomic Force Microscopy, cantilever, friction|
|ASJC Classification||; ; ;|
|Score||= 70.0, 08-06-2020, ArticleFromJournal|
|Publication indicators||= 2; = 3; : 2018 = 1.035; : 2018 = 2.141 (2) - 2018=2.157 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.