Accession Number : ADA025350


Title :   Finishing Techniques for Silicon Nitride Bearings


Descriptive Note : Final rept. 15 Jan 1974-15 Jul 1975


Corporate Author : NORTON CO WORCESTER MA INDUSTRIAL CERAMICS DIV


Personal Author(s) : Baumgartner, H R ; Cowley, Paul E


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a025350.pdf


Report Date : Mar 1976


Pagination or Media Count : 78


Abstract : Strength, surface finish and rolling contact fatigue life were determined on two grades of hot pressed silicon nitride after a total of twenty- seven different surface finishing procedures. Rolling contact fatigue lives of silicon nitride with selected smoother finishes tested at 800 ksi Hertz stress were an order of magnitude longer than those obtained on the M50 bearing steel controls and more than twice as long as the best results previously obtained on silicon nitride.


Descriptors :   *SILICON NITRIDES , *ROLLER BEARINGS , *SURFACE FINISHING , CERAMIC MATERIALS , GRINDING , PHYSICAL PROPERTIES , FATIGUE LIFE , MANUFACTURING , STRENGTH(MECHANICS)


Subject Categories : Ceramics, Refractories and Glass
      Machinery and Tools


Distribution Statement : APPROVED FOR PUBLIC RELEASE