Importance of bearing porosity in engineering and natural lubrication

Pawlak, Zenon, Urbaniak, Wieslaw, Kaldonski, Tadeusz, & Oloyede, Adekunle (2013) Importance of bearing porosity in engineering and natural lubrication. In Davim, J. Paulo (Ed.) Biomaterials and Medical Tribology : Research and Development. Woodhead Publishing Limited, pp. 311-354.

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Abstract

The multilamellar structure of phospholipids, i.e. the surface amorphous layer (SAL) that covers the natural surface of articular cartilage, and hexagonal boron nitride (h-BN) on the surface of metal porous bearings are two prominent examples of the family of layered materials that possess the ability to deliver lamellar lubrication. This chapter presents the friction study that was conducted on the surfaces of cartilage and the metal porous bearing impregnated with oil (first generation) and with oil + h-BN (second generation). The porosity of cartilage is around 75% and those of metal porous bearings were 15–28 wt%. It is concluded that porosity is a critical factor in facilitating the excellent tribological properties of both articular cartilage and the porous metal bearings studied.

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ID Code: 60941
Item Type: Book Chapter
Keywords: hexagonal boron nitride, phospholipid, porous cartilage, metal bearing, lamellar lubrication, friction, load, carrying capacity, porosity, permeability
DOI: 10.1533/9780857092205.311
ISBN: 9780857090171
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > BIOMEDICAL ENGINEERING (090300) > Biomechanical Engineering (090302)
Divisions: Current > Institutes > Institute of Health and Biomedical Innovation
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2013 Woodhead Publishing Limited
Deposited On: 26 Jun 2013 05:56
Last Modified: 22 Oct 2015 16:25

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