AFM cantilevers with spherical tip of millimeter size

Marcin Michałowski , Sergiusz Łuczak

Abstract

The 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.
Author Marcin Michałowski (FM / IMPh)
Marcin Michałowski,,
- The Institute of Micromechanics and Photonics
, Sergiusz Łuczak (FM / IMPh)
Sergiusz Łuczak,,
- The Institute of Micromechanics and Photonics
Journal seriesJournal of Micromechanics and Microengineering, ISSN 0960-1317, (A 25 pkt)
Issue year2019
Vol29
No1
Pages1-4
Publication size in sheets0.5
Keywords in EnglishAtomic Force Microscopy, cantilever, friction
ASJC Classification2208 Electrical and Electronic Engineering; 2210 Mechanical Engineering; 2211 Mechanics of Materials; 2504 Electronic, Optical and Magnetic Materials
DOIDOI:10.1088/1361-6439/aaee56
URL http://iopscience.iop.org/article/10.1088/1361-6439/aaee56/pdf
Languageen angielski
Score (nominal)25
ScoreMinisterial score = 25.0, 11-07-2019, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.017; WoS Impact Factor: 2017 = 1.888 (2) - 2017=1.954 (5)
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