Journal Article

FZJ-2025-00085

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png On How to Determine Surface Roughness Power Spectra

Rodriguez, N. ; Gontard, L. ; Ma, C. ; Xu, R.FZJ* ; Persson, B. (Corresponding author)FZJ*

2025
Springer Science Business Media B.V. Dordrecht

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Please use a persistent id in citations: doi:10.1007/s11249-024-01933-6  doi:10.34734/FZJ-2025-00085

Abstract: Analytical contact mechanics theories depend on surface roughness through the surface roughness power spectrum. In the present study, we evaluated the usability of various experimental methods for studying surface roughness. Our findings indicated that height data obtained from optical methods often lack accuracy and should not be utilized for calculating surface roughness power spectra. Conversely, engineering stylus instruments and atomic force microscopy (AFM) typically yield reliable results that are consistent across the overlapping roughness length scale region. For surfaces with isotropic roughness, the two-dimensional (2D) power spectrum can be derived from the one-dimensional (1D) power spectrum using several approaches, which we explored in this paper.

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (PGI-1)

Research Program(s):

1. 5211 - Topological Matter (POF4-521) (POF4-521)

Appears in the scientific report 2025

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; DEAL Springer ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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