Kang, J. and Hadfield, M., 2000. The Influence of Heterogeneous Porosity On Silicon Nitride/Steel Wear In Lubricated Rolling Contact. Ceramics International, 26 (3), pp. 315-324.
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Heterogeneous porosity is detected on the surface and subsurface of hot isostatically pressed (HIPed) silicon nitride spherical rolling elements. The extent of the localized 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. Localized 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 localized porosity size is evaluated from experimental results.
|Subjects:||Technology > Engineering > General Engineering|
|Group:||School of Design, Engineering & Computing > Sustainable Design Research Centre|
|Deposited By:||Ms Naomi Bailey|
|Deposited On:||26 Feb 2009 13:10|
|Last Modified:||07 Mar 2013 15:07|
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