6O'Brien M J, Presser N, and Robinson E Y. Failure analysis of three Si3N4 ball used in hybrid beatings. Engineering Failure Analysis, 2003, 10: 453-473.
7Jiang M, Komanduri R. On the finishing of Si3N4 balls for bearing applications. Wear, 1998, 215:267-275.
8Ohta H and Kobayashi K. Vibrations of hybrid ceramic ball bearings. J. Sound Vibration, 1996, 192: 481-493.
