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The Effect of Sliding Speed on the Tribological Properties of Ceramic Materials

GIOVANNI ALPARONE, David Penney Orcid Logo, Eifion Jewell Orcid Logo, James Sullivan Orcid Logo, Christopher Mills Orcid Logo

Materials, Volume: 16, Issue: 23, Start page: 7252

Swansea University Authors: GIOVANNI ALPARONE, David Penney Orcid Logo, Eifion Jewell Orcid Logo, James Sullivan Orcid Logo

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DOI (Published version): 10.3390/ma16237252

Abstract

Ceramics are considered to be candidate materials for galvanising pot bearing materials due to their excellent corrosion resistance in many molten metals. Galvanising pot roll bearings must have excellent wear resistance, and, therefore, it is important to understand the wear behaviour of prospectiv...

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Published in: Materials
ISSN: 1996-1944
Published: MDPI AG 2023
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa65094
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Abstract: Ceramics are considered to be candidate materials for galvanising pot bearing materials due to their excellent corrosion resistance in many molten metals. Galvanising pot roll bearings must have excellent wear resistance, and, therefore, it is important to understand the wear behaviour of prospective bearing materials. This study investigates the friction- and wear-resistant properties of select ceramics, namely, pure hBN, BN M26, AlN-BN, Macor, 3YSZ, Al2O3 and Si3N4. The ceramics were tested at different sliding speeds using a pin-on-disc device equipped with SiC pins. The lowest coefficient of friction (COF) achieved was below 0.1, and it was measured for pure hBN at a 3.14 m/min sliding speed. However, a wear scar analysis showed that the BN grades suffered from severe wear. The highest wear rate was obtained for BN M26 at a 9.42 m/min sliding speed and was equal to 17.1 × 10−6 mm3 N−1 m−1. It was shown that the wear coefficient of the tested ceramics varied exponentially with hardness. The lowest wear was observed on the 3YSZ, Al2O3 and Si3N4 ceramics, which showed no volume loss, and, for this reason, they can be potentially used as bearing materials in continuous galvanising lines.
Keywords: ceramics; tribology; coefficient of friction; wear resistance; pin on disc; galvanizing pot hardware
College: Faculty of Science and Engineering
Funders: This project was supported by the Engineering and Physical Sciences Research Council (Grant Ref: EP/V519601/1) with Tata Steel UK..
Issue: 23
Start Page: 7252