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High-speed Sliding Friction of Laser-textured Silicon Nitride in Water against Rubber

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


Original languageEnglish
Title of host publicationProceedings of the Twenty Eighth International Conference on Surface Modification Technologies
Number of pages7
Publication statusPublished - 2014
Publication typeA4 Article in a conference publication
EventInternational Conference on Surface Modification Technologies - , Finland
Duration: 1 Jan 2000 → …


ConferenceInternational Conference on Surface Modification Technologies
Period1/01/00 → …


The effects of a specific laser patterning on friction of silicon nitride bulk ceramic in water against rubber were investigated. A dimple-like patterning was applied to the surfaces of silicon nitride bulk ceramic blocks with pulsed laser drilling. Friction measurements were conducted with a special device designed for high-velocity sliding wear and friction testing of hard materials in wet conditions. Sliding velocities in the water-lubricated test ranged from 3.3 to 33 m/s and the load was 80 N. Anomalies in friction behaviour were observed in 8.3 and 16.7 m/s, which can only partially be explained with test equipment characteristics.


  • Friction, Silicon Nitride, Sliding, Wear, Laser

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Field of science, Statistics Finland

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