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Controlled porosity alumina structures for ultra-precision hydrostatic journal bearings

By Isidro Sergio Durazo-Cardenas, David J. Stephenson and John Corbett

Abstract

A series of fine-grade alumina powders has been used in combination with maize starch granules to produce porous structures for porous hydrostatic journal- bearing applications. A comprehensive series of tests was conducted to characterize porosity in terms of density, pore size, and permeability. Successful processing of quality journal-bearing components has been demonstrated for preferred combinations of alumina size and starch content, using fixed-processing parameters. The new porous ceramic bearings showed consistent and reproducible properties and are suitable for a wide range of higher precision engineering applications. The porous ceramic-bearing processing route has also proved to be low cost and environmentally sound

Publisher: Blackwell Publishing Ltd.
Year: 2010
DOI identifier: 10.1111/j.1551-2916.2010.03960.x
OAI identifier: oai:dspace.lib.cranfield.ac.uk:1826/5234
Provided by: Cranfield CERES
Journal:

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Citations

  1. (2004). Development of porous-ceramic hydrostatic bearings. doi
  2. (1976). Externally pressurized porous thrust bearings” doi
  3. (1970). Hydrostatic bearings for machine tools and similar applications”. The machinery publishing co. ltd., doi
  4. (1968). Improvement of the dynamic water expulsion method for pore size distribution measurements.
  5. (1985). Institution, “Methods for the determination of the density of petroleum products”,
  6. (1977). Institution, “Methods for the determination of the viscosity of liquids”
  7. Institution, “Permeable sintered materials- determination of bubble test pore size” doi
  8. Institution, “Powder metallurgical materials and products part 3. Methods of testing sintered materials- Determination of fluid permeability”, doi
  9. Institution, “Sintered metal materials, excluding hardmetalspermeable sintered metal materials- determination of density, oil content and open porosity” doi
  10. (1981). Percolation theory of two phase flow in porous media”, doi
  11. (1990). Percolative conduction in three dimensions” doi
  12. (2007). Porosity and pore size control in starch consolidation casting of oxide ceramics- Achievements and problems”, doi
  13. (1957). Porous ceramic formed using starch consolidation”, Key Engineering Materials, doi
  14. (1998). Porous ceramic water hydrostatic bearings for improved accuracy performance” doi
  15. Porous ceramic water hydrostatic bearings” pp. 147-161 in Total Tribology- Towards an integrated approach. Edited by
  16. (1997). Precision machine tools and nanotechnology”. doi
  17. (1995). Principles of ceramics processing”,
  18. (1998). Processing of porous ceramics by starch consolidation” doi
  19. (1960). Scheidegger “Physical aspects of permeability” pp 125-133 in the physics of flow through porous media.
  20. (1993). Sintering of porous materials by a capsule free HIP process” Ceramic Transactions 31- Porous materials
  21. (1984). Steady state solution of finite hydrostatic porous oil journal bearings with tangential velocity slip” doi
  22. (2001). The dependence of pore size distribution on porosity in hot isostatically pressed porous alumina”,
  23. (2009). The performance of a porous ceramic hydrostatic journal bearing”, doi
  24. (1994). The state of the art of nanotechnology for processing of ultra-precision and ultrafine products”
  25. (1969). The use of porous materials in externally pressurized gas bearings” doi
  26. (1992). Turbulent hybrid journal bearings with porous bush: a steady state performance” doi

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