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http://bura.brunel.ac.uk/handle/2438/1317
Title: | The influence of heterogenous porosity on silicon nitride/steel wear in lubricated rolling contact |
Authors: | Kang, J Hadfield, M |
Keywords: | Bearing material;Ceramic balls;Friction;Fatigue |
Issue Date: | 2000 |
Publisher: | Elsevier |
Citation: | Ceramics International, 26(3): 315-324 |
Abstract: | Heterogeneous porosity is detected on the surface and subsurface of hot isostatically pressed (HIPed) silicon nitride spherical rolling elements. The extent of the localised porosity accounts for an area of 6% of the rolling element surface and 4% of the material volume. An experimental investigation using a rotary tribometer is described to compare the lubricated rolling wear mechanisms and performance of HIPed silicon nitride with heterogeneous porosity defect in contact with steel. A brief review of previous investigations is presented. Localised porosity detection using white and violet light microscopy with post-test evaluation is described. Discussions, micro-hardness measurements and scanning electron microscopy illustrations are presented. Critical localised porosity size is evaluated from experimental results. |
URI: | www.elsevier.com/locate/inca/405926 http://bura.brunel.ac.uk/handle/2438/1317 |
ISSN: | 0272-8842 |
Appears in Collections: | Design Mechanical and Aerospace Engineering Brunel Design School Research Papers |
Files in This Item:
File | Description | Size | Format | |
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THE INFLUENCE OF HETEROGENEOUS POROSITY.pdf | 732.35 kB | Adobe PDF | View/Open |
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